[Buildroot] About i386 Architecture and Grub2

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* [Buildroot] About i386 Architecture and Grub2
@ 2014-08-20 11:37 lee choon gay
  2014-08-20 12:10 ` Thomas Petazzoni
  0 siblings, 1 reply; 9+ messages in thread
From: lee choon gay @ 2014-08-20 11:37 UTC (permalink / raw)
  To: buildroot

Hi.
I use buildroot-2014.05.tar.gz to build Linux version 3.14.4 for i386 architecture.
I am able to boot up the code using Grub2 on my PC.
That is the case if I use initrd /boot/rootfs.cpio.
My grub.cfg is as follow.

set default="0"
set timeout="0"

menuentry "any name" {
????????? Linux /boot/bzImage root=/dev/sda console=tty1
????????? initrd /boot/rootfs.cpio
????????? }

But the data is not persistent, anything that I save will be gone after reboot.
I am looking for method to make the data persistent (no?ram file system).
I try to boot up the code without using rootfs.cpio as follow.
The code won't boot up.

set default="0"
set timeout="0"

menuentry "any name" {
????????? Linux /boot/bzImage root=/dev/sda2 noinitrd?console=tty1
????????? }

For your info, I use pendrive for this.
And the bzImage and rootfs.cpio is located in partition 1 boot folder.
File system is located in partition 2.

Hope I can get some?help here.
Thank you very much. :)
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* [Buildroot] About i386 Architecture and Grub2
  2014-08-20 11:37 [Buildroot] About i386 Architecture and Grub2 lee choon gay
@ 2014-08-20 12:10 ` Thomas Petazzoni
  2014-08-21  2:31   ` lee choon gay
  0 siblings, 1 reply; 9+ messages in thread
From: Thomas Petazzoni @ 2014-08-20 12:10 UTC (permalink / raw)
  To: buildroot

Hello,

On Wed, 20 Aug 2014 04:37:12 -0700, lee choon gay wrote:

> But the data is not persistent, anything that I save will be gone after reboot.
> I am looking for method to make the data persistent (no?ram file system).
> I try to boot up the code without using rootfs.cpio as follow.
> The code won't boot up.
> 
> set default="0"
> set timeout="0"
> 
> menuentry "any name" {
> ????????? Linux /boot/bzImage root=/dev/sda2 noinitrd?console=tty1
> ????????? }
> 
> For your info, I use pendrive for this.
> And the bzImage and rootfs.cpio is located in partition 1 boot folder.

If you're using a root filesystem in the second partition, then there's
no point in keeping the rootfs.cpio file in the fist partition.

> File system is located in partition 2.
> 
> Hope I can get some?help here.
> Thank you very much. :)

Yes, but please provide more details, like what happens when you try to
boot, and how you create your second partition exactly. With the
informations you provided, there is just no way for us to help you as
you didn't provide enough details.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Buildroot] About i386 Architecture and Grub2
  2014-08-20 12:10 ` Thomas Petazzoni
@ 2014-08-21  2:31   ` lee choon gay
  2014-08-21 13:03     ` Thomas Petazzoni
  0 siblings, 1 reply; 9+ messages in thread
From: lee choon gay @ 2014-08-21  2:31 UTC (permalink / raw)
  To: buildroot

Hi. Thanks for replying.

I build the code with settings below.
menuconfig -> Filesystem images -> ext4.
menuconfig -> Filesystem images -> tar the root filesystem.
menuconfig -> System configuration -> Init system with Busybox (default).
menuconfig -> Toolchain -> Buildroot toolchain (default).
menuconfig -> Toolchain -> C library uClibc (default).

Steps to build the partitions.
1) I use sudo dd if=/dev/zero bs=1M count=1 of=/dev/sdb to wipe out the original partition in my pendrive.
2) sudo fdisk -l will shows /dev/sdb doesn't contain
 a valid partition table.
3) To recreate the partition, I use sudo fdisk /dev/sdb.
4) I enter n for new partition, p for primary, label partition as 1, default minimum for first sector, 5000000 for last sector.
5) Then enter n again to create second partition, p for primary, label partition as 2, 5000001 for first sector, default maximum for last sector.
6) Then enter w to write the partition table.
7) Power cycle the pendrive.
8) I format the partitions using sudo mkfs.ext4 /dev/sdb1 and sudo mkfs.ext4 /dev/sdb2.
9) I sudo mount /dev/sdb1 /home/leecgy/temp1 and sudo chmod a+rw /home/leecgy/temp1 to enable writing to partition 1.
10) Then sudo mount /dev/sdb2 /home/leecgy/temp2 and sudo chmod a+rw /home/leecgy/temp2 to enable writing to partition 2.
11) I right click and create new folder called boot in partition 1, then right click and copy paste the bzImage into boot folder.
12) Then right click and create new folder
 called grub in boot folder, then right click and copy paste the grub.cfg into grub folder.
13) I sudo grub-install --boot-directory=/home/leecgy/temp1/boot /dev/sdb to install grub.
14) I right click and extract the rootfs.tar, then right click and copy paste the contents inside rootfs into partition 2.

When trying to boot up, the code dump a lot of?error and stuck. I cannot shift+page up to see the top of the error.

Please let me know if you need more info.

Thanks.

On Wednesday, August 20, 2014 8:10 PM, Thomas Petazzoni <thomas.petazzoni@free-electrons.com> wrote:

Hello,

On Wed, 20 Aug 2014 04:37:12 -0700, lee choon gay wrote:

> But
 the data is not persistent, anything that I save will be gone after reboot.
> I am looking for method to make the data persistent (no?ram file system).
> I try to boot up the code without using rootfs.cpio as follow.
> The code won't boot up.
> 
> set default="0"
> set timeout="0"
> 
> menuentry "any name" {
> ????????? Linux /boot/bzImage root=/dev/sda2 noinitrd?console=tty1
> ????????? }
> 
> For your info, I use pendrive for this.
> And the bzImage and rootfs.cpio is located in partition 1 boot folder.

If you're using a root filesystem in the second partition, then there's
no point in keeping the rootfs.cpio file in the fist partition.

> File system is located in partition 2.
> 
> Hope I can get some?help here.
> Thank you very much. :)

Yes, but please provide more details, like what happens when you try to
boot, and how you create your second partition exactly. With the
informations you provided, there is just no way for us to help you as
you didn't provide enough details.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com/
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* [Buildroot] About i386 Architecture and Grub2
  2014-08-21  2:31   ` lee choon gay
@ 2014-08-21 13:03     ` Thomas Petazzoni
  2014-08-24  9:13       ` lee choon gay
  0 siblings, 1 reply; 9+ messages in thread
From: Thomas Petazzoni @ 2014-08-21 13:03 UTC (permalink / raw)
  To: buildroot

Dear lee choon gay,

On Wed, 20 Aug 2014 19:31:49 -0700, lee choon gay wrote:

> I build the code with settings below.
> menuconfig -> Filesystem images -> ext4.
> menuconfig -> Filesystem images -> tar the root filesystem.
> menuconfig -> System configuration -> Init system with Busybox (default).
> menuconfig -> Toolchain -> Buildroot toolchain (default).
> menuconfig -> Toolchain -> C library uClibc (default).
> 
> Steps to build the partitions.
> 1) I use sudo dd if=/dev/zero bs=1M count=1 of=/dev/sdb to wipe out the original partition in my pendrive.
> 2) sudo fdisk -l will shows /dev/sdb doesn't contain
>  a valid partition table.
> 3) To recreate the partition, I use sudo fdisk /dev/sdb.
> 4) I enter n for new partition, p for primary, label partition as 1, default minimum for first sector, 5000000 for last sector.
> 5) Then enter n again to create second partition, p for primary, label partition as 2, 5000001 for first sector, default maximum for last sector.
> 6) Then enter w to write the partition table.
> 7) Power cycle the pendrive.
> 8) I format the partitions using sudo mkfs.ext4 /dev/sdb1 and sudo mkfs.ext4 /dev/sdb2.
> 9) I sudo mount /dev/sdb1 /home/leecgy/temp1 and sudo chmod a+rw /home/leecgy/temp1 to enable writing to partition 1.
> 10) Then sudo mount /dev/sdb2 /home/leecgy/temp2 and sudo chmod a+rw /home/leecgy/temp2 to enable writing to partition 2.
> 11) I right click and create new folder called boot in partition 1, then right click and copy paste the bzImage into boot folder.
> 12) Then right click and create new folder
>  called grub in boot folder, then right click and copy paste the grub.cfg into grub folder.
> 13) I sudo grub-install --boot-directory=/home/leecgy/temp1/boot /dev/sdb to install grub.

You may want to follow the instructions available in the help text of
the Grub 2 option, which have been tested.

> 14) I right click and extract the rootfs.tar, then right click and copy paste the contents inside rootfs into partition 2.

Make sure you extract things as root:

	sudo tar -C /home/leecgy/temp2 -xf output/images/rootfs.tar

> When trying to boot up, the code dump a lot of?error and stuck. I cannot shift+page up to see the top of the error.

Please give the errors that you see. For now, we still have no idea
whether it's a bootloader problem, a kernel problem, or a root
filesystem problem. Without the boot log, there's not much we can do.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Buildroot] About i386 Architecture and Grub2
  2014-08-21 13:03     ` Thomas Petazzoni
@ 2014-08-24  9:13       ` lee choon gay
  2014-08-30  6:35         ` lee choon gay
  2014-08-30  7:28         ` Thomas Petazzoni
  0 siblings, 2 replies; 9+ messages in thread
From: lee choon gay @ 2014-08-24  9:13 UTC (permalink / raw)
  To: buildroot

Hi, friend.

I took a look at the /boot/grub/grub.cfg from my PC, it also need initrd to boot up.
I also saw some article from internet saying initrd is a must and the kernel init process is the one that responsible to switch from ram file system to real file system.

Anyway, if I can get a USB to RS232 cable next week I can try to capture the log and see.

Currently I have a workaround to change root to real file system during kernel init.
Below is the code I use.
I put the code in /etc/init.d as startup.sh and create S99startup by refering to other scripts in /etc/init.d to call out my startup.sh .

#!/bin/busybox sh

# Wait for sda detected
sleep 5

# Mount the root filesystem.
mkdir /mnt/root
mount -t ext4 /dev/sda1 /mnt/root
mount -o bind /dev /mnt/root/dev
mount -o bind /proc /mnt/root/proc

# Boot the real thing.
chroot /mnt/root /linuxrc

Thanks.

On Thursday, August 21, 2014 9:03 PM, Thomas Petazzoni <thomas.petazzoni@free-electrons.com> wrote:

Dear lee choon gay,

On Wed, 20 Aug 2014 19:31:49 -0700, lee choon gay wrote:

> I build the code with settings below.
> menuconfig -> Filesystem images -> ext4.
> menuconfig -> Filesystem images -> tar the root filesystem.
> menuconfig -> System configuration -> Init system with Busybox (default).
> menuconfig -> Toolchain -> Buildroot toolchain (default).
> menuconfig -> Toolchain -> C library uClibc (default).
> 
> Steps to build the partitions.
> 1) I use sudo dd if=/dev/zero bs=1M count=1 of=/dev/sdb to wipe out the original partition in my pendrive.
> 2) sudo fdisk -l will shows /dev/sdb doesn't contain
>? a valid partition table.
> 3) To recreate the partition, I use sudo fdisk /dev/sdb.
> 4) I enter n for new partition, p for primary, label partition as 1, default minimum for first sector, 5000000 for last sector.
> 5) Then enter n again to create second partition, p for primary, label partition as 2, 5000001 for first sector, default maximum for last sector.
> 6) Then enter w to write the partition table.
> 7) Power cycle the pendrive.
> 8) I format the partitions using sudo mkfs.ext4 /dev/sdb1 and sudo mkfs.ext4 /dev/sdb2.
> 9) I sudo mount /dev/sdb1 /home/leecgy/temp1 and sudo chmod a+rw /home/leecgy/temp1 to enable writing to partition 1.
> 10) Then sudo mount /dev/sdb2 /home/leecgy/temp2 and sudo chmod a+rw /home/leecgy/temp2 to enable writing to partition 2.
> 11) I right click and create new folder called boot in partition 1, then right click and copy paste the bzImage into boot folder.
> 12) Then right click and create new folder
>? called grub in boot folder, then right click and copy paste the grub.cfg into grub folder.
> 13) I sudo grub-install --boot-directory=/home/leecgy/temp1/boot /dev/sdb to install grub.

You may want to follow the instructions available in the help text of
the Grub 2 option, which have been tested.

> 14) I right click and extract the rootfs.tar, then right click and copy paste the contents inside rootfs into partition 2.

Make sure you extract things as root:

??? sudo tar -C /home/leecgy/temp2 -xf output/images/rootfs.tar

> When trying to boot up, the code dump a lot of?error and stuck. I cannot shift+page up to see the top of the error.

Please give the errors that you see. For now, we still have no idea
whether it's a bootloader problem, a kernel problem, or a root
filesystem problem. Without the boot log, there's not much we can do.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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* [Buildroot] About i386 Architecture and Grub2
  2014-08-24  9:13       ` lee choon gay
@ 2014-08-30  6:35         ` lee choon gay
  2014-08-30  7:30           ` Thomas Petazzoni
  2014-08-30  7:28         ` Thomas Petazzoni
  1 sibling, 1 reply; 9+ messages in thread
From: lee choon gay @ 2014-08-30  6:35 UTC (permalink / raw)
  To: buildroot

Hi.
Below is the teraterm log for noinitrd.
I use single partition for this, sda1.
Seems like the device driver is not ready yet to detect sda1.
You have any workaround for this?
Else I just stick to my method in previous email.

Thanks.

[  144.700494] reboot: Restarting system
[  144.704199] reboot: machine restart
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.14.4 (leecgy at ubuntu) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-62) ) #1 SMP Sun Aug 24 14:29:08 MYT 2014
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009d7ff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009d800-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable
[    0.000000] BIOS-e820: [mem 0x0000000020000000-0x00000000201fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000020200000-0x0000000040003fff] usable
[    0.000000] BIOS-e820: [mem 0x0000000040004000-0x0000000040004fff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000040005000-0x00000000d21a4fff] usable
[    0.000000] BIOS-e820: [mem 0x00000000d21a5000-0x00000000d21e7fff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000d21e8000-0x00000000d6f09fff] usable
[    0.000000] BIOS-e820: [mem 0x00000000d6f0a000-0x00000000d6ffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000d7000000-0x00000000d774dfff] usable
[    0.000000] BIOS-e820: [mem 0x00000000d774e000-0x00000000d77fffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000d7800000-0x00000000d7fb3fff] usable
[    0.000000] BIOS-e820: [mem 0x00000000d7fb4000-0x00000000d7ffffff] ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000d8000000-0x00000000d970dfff] usable
[    0.000000] BIOS-e820: [mem 0x00000000d970e000-0x00000000d97fffff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000d9800000-0x00000000dae01fff] usable
[    0.000000] BIOS-e820: [mem 0x00000000dae02000-0x00000000df9fffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed00000-0x00000000fed03fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000011e5fffff] usable
[    0.000000] Notice: NX (Execute Disable) protection cannot be enabled: non-PAE kernel!
[    0.000000] SMBIOS 2.7 present.
[    0.000000] e820: last_pfn = 0xdae02 max_arch_pfn = 0x100000
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[    0.000000] found SMP MP-table at [mem 0x000fd910-0x000fd91f] mapped at [c00fd910]
[    0.000000] Scanning 1 areas for low memory corruption
[    0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[    0.000000] init_memory_mapping: [mem 0x37000000-0x373fffff]
[    0.000000] init_memory_mapping: [mem 0x30000000-0x36ffffff]
[    0.000000] init_memory_mapping: [mem 0x00100000-0x1fffffff]
[    0.000000] init_memory_mapping: [mem 0x20200000-0x2fffffff]
[    0.000000] init_memory_mapping: [mem 0x37400000-0x377fdfff]
[    0.000000] ACPI: RSDP 000f0490 000024 (v02 DELL  )
[    0.000000] ACPI: XSDT d7ff4080 00007C (v01 DELL    CBX3    01072009 AMI  00010013)
[    0.000000] ACPI: FACP d7ffdbb0 00010C (v05 DELL    CBX3    01072009 AMI  00010013)
[    0.000000] ACPI: DSDT d7ff4188 009A27 (v02 DELL    CBX3    00000022 INTL 20091112)
[    0.000000] ACPI: FACS d97fe080 000040
[    0.000000] ACPI: APIC d7ffdcc0 000072 (v03 DELL    CBX3    01072009 AMI  00010013)
[    0.000000] ACPI: FPDT d7ffdd38 000044 (v01 DELL    CBX3    01072009 AMI  00010013)
[    0.000000] ACPI: MCFG d7ffdd80 00003C (v01 DELL    CBX3    01072009 MSFT 00000097)
[    0.000000] ACPI: HPET d7ffddc0 000038 (v01 DELL    CBX3    01072009 AMI. 00000005)
[    0.000000] ACPI: SSDT d7ffddf8 000415 (v01 SataRe SataTabl 00001000 INTL 20091112)
[    0.000000] ACPI: SSDT d7ffe210 0009B9 (v01  PmRef  Cpu0Ist 00003000 INTL 20051117)
[    0.000000] ACPI: SSDT d7ffebd0 000B22 (v01  PmRef    CpuPm 00003000 INTL 20051117)
[    0.000000] ACPI: DMAR d7fff6f8 0000B8 (v01 INTEL      SNB  00000001 INTL 00000001)
[    0.000000] ACPI: ASF! d7fff7b0 0000A5 (v32 INTEL       HCG 00000001 TFSM 000F4240)
[    0.000000] ACPI: SLIC d7fff858 000176 (v03 DELL    CBX3    01072009 MSFT 00010013)
[    0.000000] 2614MB HIGHMEM available.
[    0.000000] 887MB LOWMEM available.
[    0.000000]   mapped low ram: 0 - 377fe000
[    0.000000]   low ram: 0 - 377fe000
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x00001000-0x00ffffff]
[    0.000000]   Normal   [mem 0x01000000-0x377fdfff]
[    0.000000]   HighMem  [mem 0x377fe000-0xdae01fff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00001000-0x0009cfff]
[    0.000000]   node   0: [mem 0x00100000-0x1fffffff]
[    0.000000]   node   0: [mem 0x20200000-0x40003fff]
[    0.000000]   node   0: [mem 0x40005000-0xd21a4fff]
[    0.000000]   node   0: [mem 0xd21e8000-0xd6f09fff]
[    0.000000]   node   0: [mem 0xd7000000-0xd774dfff]
[    0.000000]   node   0: [mem 0xd7800000-0xd7fb3fff]
[    0.000000]   node   0: [mem 0xd8000000-0xd970dfff]
[    0.000000]   node   0: [mem 0xd9800000-0xdae01fff]
[    0.000000] Using APIC driver default
[    0.000000] ACPI: PM-Timer IO Port: 0x408
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
[    0.000000] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
[    0.000000] PM: Registered nosave memory: [mem 0x0009d000-0x0009dfff]
[    0.000000] PM: Registered nosave memory: [mem 0x0009e000-0x0009ffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000dffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000e0000-0x000fffff]
[    0.000000] PM: Registered nosave memory: [mem 0x20000000-0x201fffff]
[    0.000000] e820: [mem 0xdfa00000-0xf7ffffff] available for PCI devices
[    0.000000] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:4 nr_node_ids:1
[    0.000000] PERCPU: Embedded 13 pages/cpu @f5c58000 s31872 r0 d21376 u53248
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 893316
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 noinitrd console=ttyS0,115200n8
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Initializing CPU#0
[    0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340
[    0.000000] Initializing HighMem for node 0 (000377fe:000dae02)
[    0.000000] Initializing Movable for node 0 (00000000:00000000)
[    0.000000] Memory: 3539528K/3580368K available (7422K kernel code, 458K rwdata, 2356K rodata, 620K init, 712K bss, 40840K reserved, 2673512K highmem)
[    0.000000] virtual kernel memory layout:
[    0.000000]     fixmap  : 0xfff15000 - 0xfffff000   ( 936 kB)
[    0.000000]     pkmap   : 0xff800000 - 0xffc00000   (4096 kB)
[    0.000000]     vmalloc : 0xf7ffe000 - 0xff7fe000   ( 120 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xf77fe000   ( 887 MB)
[    0.000000]       .init : 0xc1a01000 - 0xc1a9c000   ( 620 kB)
[    0.000000]       .data : 0xc173fb77 - 0xc1a008c0   (2819 kB)
[    0.000000]       .text : 0xc1000000 - 0xc173fb77   (7422 kB)
[    0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok.
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS:2304 nr_irqs:712 16
[    0.000000] Console: colour VGA+ 80x25
[    0.000000] console [ttyS0] enabled
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 3192.667 MHz processor
[    0.000001] Calibrating delay loop (skipped), value calculated using timer frequency.. 6385.33 BogoMIPS (lpj=3192667)
[    0.010703] pid_max: default: 32768 minimum: 301
[    0.015360] ACPI: Core revision 20131218
[    0.022638] ACPI: All ACPI Tables successfully acquired
[    0.028086] Security Framework initialized
[    0.032221] SELinux:  Initializing.
[    0.035745] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.042413] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.049621] Initializing cgroup subsys freezer
[    0.054117] CPU: Physical Processor ID: 0
[    0.058157] CPU: Processor Core ID: 0
[    0.061848] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[    0.061848] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
[    0.075528] mce: CPU supports 9 MCE banks
[    0.079577] CPU0: Thermal monitoring enabled (TM1)
[    0.084416] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8
[    0.084416] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0
[    0.084416] tlb_flushall_shift: 2
[    0.099705] Freeing SMP alternatives memory: 28K (c1a9c000 - c1aa3000)
[    0.106318] Enabling APIC mode:  Flat.  Using 1 I/O APICs
[    0.112190] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.128243] smpboot: CPU0: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz (fam: 06, model: 3a, stepping: 09)
[    0.137565] Performance Events: PEBS fmt1+, 16-deep LBR, IvyBridge events, full-width counters, Intel PMU driver.
[    0.147963] ... version:                3
[    0.151997] ... bit width:              48
[    0.156118] ... generic registers:      8
[    0.160152] ... value mask:             0000ffffffffffff
[    0.165495] ... max period:             0000ffffffffffff
[    0.170839] ... fixed-purpose events:   3
[    0.174874] ... event mask:             00000007000000ff
[    0.180374] x86: Booting SMP configuration:
[    0.184588] .... node  #0, CPUs:      #1
[    0.198875] Initializing CPU#1
[    0.204885]  #2
[    0.216785] Initializing CPU#2
[    0.222768]  #3
[    0.234672] Initializing CPU#3
[    0.240612] x86: Booted up 1 node, 4 CPUs
[    0.244648] smpboot: Total of 4 processors activated (25541.33 BogoMIPS)
[    0.253609] devtmpfs: initialized
[    0.257139] PM: Registering ACPI NVS region [mem 0xd21a5000-0xd21e7fff] (274432 bytes)
[    0.265114] PM: Registering ACPI NVS region [mem 0xd970e000-0xd97fffff] (991232 bytes)
[    0.273151] kworker/u8:0 (26) used greatest stack depth: 6980 bytes left
[    0.273283] RTC time: 14:24:00, date: 08/30/14
[    0.273308] NET: Registered protocol family 16
[    0.288950] cpuidle: using governor ladder
[    0.293077] cpuidle: using governor menu
[    0.297078] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[    0.304699] ACPI: bus type PCI registered
[    0.308786] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[    0.318157] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[    0.324992] PCI: Using MMCONFIG for extended config space
[    0.330425] PCI: Using configuration type 1 for base access
[    0.336038] dmi type 0xB1 record - unknown flag
[    0.340988] kworker/u8:0 (61) used greatest stack depth: 6976 bytes left
[    0.350989] bio: create slab <bio-0> at 0
[    0.355138] ACPI: Added _OSI(Module Device)
[    0.359367] ACPI: Added _OSI(Processor Device)
[    0.363850] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.368588] ACPI: Added _OSI(Processor Aggregator Device)
[    0.376076] ACPI: Executed 1 blocks of module-level executable AML code
[    0.386883] ACPI: SSDT dafa7018 00083B (v01  PmRef  Cpu0Cst 00003001 INTL 20051117)
[    0.394869] ACPI: Dynamic OEM Table Load:
[    0.398932] ACPI: SSDT   (null) 00083B (v01  PmRef  Cpu0Cst 00003001 INTL 20051117)
[    0.409654] ACPI: SSDT dafa8a98 000303 (v01  PmRef    ApIst 00003000 INTL 20051117)
[    0.417653] ACPI: Dynamic OEM Table Load:
[    0.421720] ACPI: SSDT   (null) 000303 (v01  PmRef    ApIst 00003000 INTL 20051117)
[    0.432353] ACPI: SSDT dafaec18 000119 (v01  PmRef    ApCst 00003000 INTL 20051117)
[    0.440331] ACPI: Dynamic OEM Table Load:
[    0.444394] ACPI: SSDT   (null) 000119 (v01  PmRef    ApCst 00003000 INTL 20051117)
[    0.455309] ACPI: Interpreter enabled
[    0.459006] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20131218/hwxface-580)
[    0.468313] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20131218/hwxface-580)
[    0.477629] ACPI: (supports S0 S3 S4 S5)
[    0.481578] ACPI: Using IOAPIC for interrupt routing
[    0.486608] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.495899] ACPI: No dock devices found.
[    0.532250] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
[    0.538474] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
[    0.546854] acpi PNP0A08:00: _OSC: platform does not support [PCIeHotplug PME]
[    0.554205] acpi PNP0A08:00: _OSC: OS now controls [AER PCIeCapability]
[    0.561166] PCI host bridge to bus 0000:00
[    0.565290] pci_bus 0000:00: root bus resource [bus 00-3e]
[    0.570810] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7]
[    0.577029] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff]
[    0.583249] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
[    0.590168] pci_bus 0000:00: root bus resource [mem 0x000d4000-0x000d7fff]
[    0.597086] pci_bus 0000:00: root bus resource [mem 0x000d8000-0x000dbfff]
[    0.604005] pci_bus 0000:00: root bus resource [mem 0x000dc000-0x000dffff]
[    0.610925] pci_bus 0000:00: root bus resource [mem 0x000e0000-0x000e3fff]
[    0.617841] pci_bus 0000:00: root bus resource [mem 0x000e4000-0x000e7fff]
[    0.624762] pci_bus 0000:00: root bus resource [mem 0xdfa00000-0xfeafffff]
[    0.631993] pci 0000:00:14.0: System wakeup disabled by ACPI
[    0.638177] pci 0000:00:19.0: System wakeup disabled by ACPI
[    0.644052] pci 0000:00:1a.0: System wakeup disabled by ACPI
[    0.649907] pci 0000:00:1b.0: System wakeup disabled by ACPI
[    0.655786] pci 0000:00:1d.0: System wakeup disabled by ACPI
[    0.661947] acpi PNP0A08:00: Disabling ASPM (FADT indicates it is unsupported)
[    0.669376] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.676461] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.684706] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 *10 11 12 14 15)
[    0.691796] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 *10 11 12 14 15)
[    0.698888] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 *5 6 10 11 12 14 15)
[    0.705976] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.714233] ACPI: PCI Interrupt Link [LNKG] (IRQs *3 4 5 6 10 11 12 14 15)
[    0.721323] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.728430] ACPI: Enabled 4 GPEs in block 00 to 3F
[    0.733373] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[    0.741522] vgaarb: loaded
[    0.744248] vgaarb: bridge control possible 0000:00:02.0
[    0.749683] SCSI subsystem initialized
[    0.753583] ACPI: bus type USB registered
[    0.757654] usbcore: registered new interface driver usbfs
[    0.763193] usbcore: registered new interface driver hub
[    0.768564] usbcore: registered new device driver usb
[    0.773705] pps_core: LinuxPPS API ver. 1 registered
[    0.778705] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.787908] PTP clock support registered
[    0.791936] Advanced Linux Sound Architecture Driver Initialized.
[    0.798071] PCI: Using ACPI for IRQ routing
[    0.803945] cfg80211: Calling CRDA to update world regulatory domain
[    0.810364] NetLabel: Initializing
[    0.813792] NetLabel:  domain hash size = 128
[    0.818176] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.823180] NetLabel:  unlabeled traffic allowed by default
[    0.828899] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[    0.835231] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[    0.843123] Switched to clocksource hpet
[    0.850387] pnp: PnP ACPI init
[    0.853468] ACPI: bus type PNP registered
[    0.857569] system 00:00: [mem 0xfed40000-0xfed44fff] has been reserved
[    0.864441] system 00:04: [io  0x0680-0x069f] has been reserved
[    0.870402] system 00:04: [io  0x1000-0x100f] has been reserved
[    0.876363] system 00:04: [io  0xffff] has been reserved
[    0.881711] system 00:04: [io  0xffff] has been reserved
[    0.887060] system 00:04: [io  0x0400-0x0453] could not be reserved
[    0.893369] system 00:04: [io  0x0458-0x047f] has been reserved
[    0.899329] system 00:04: [io  0x0500-0x057f] has been reserved
[    0.905289] system 00:04: [io  0x164e-0x164f] has been reserved
[    0.911348] system 00:06: [io  0x0454-0x0457] has been reserved
[    0.917392] system 00:07: [io  0x0a40-0x0a4f] has been reserved
[    0.923353] system 00:07: [io  0x0a00-0x0a3f] has been reserved
[    0.929365] system 00:08: [io  0x04d0-0x04d1] has been reserved
[    0.936097] system 00:0b: [mem 0xfed1c000-0xfed1ffff] has been reserved
[    0.942757] system 00:0b: [mem 0xfed10000-0xfed17fff] has been reserved
[    0.949418] system 00:0b: [mem 0xfed18000-0xfed18fff] has been reserved
[    0.956079] system 00:0b: [mem 0xfed19000-0xfed19fff] has been reserved
[    0.962740] system 00:0b: [mem 0xf8000000-0xfbffffff] has been reserved
[    0.969397] system 00:0b: [mem 0xfed20000-0xfed3ffff] has been reserved
[    0.976057] system 00:0b: [mem 0xfed90000-0xfed93fff] has been reserved
[    0.982716] system 00:0b: [mem 0xfed45000-0xfed8ffff] has been reserved
[    0.989375] system 00:0b: [mem 0xff000000-0xffffffff] has been reserved
[    0.996032] system 00:0b: [mem 0xfee00000-0xfeefffff] could not be reserved
[    1.003041] system 00:0b: [mem 0xdfa00000-0xdfa00fff] has been reserved
[    1.009835] system 00:0c: [mem 0x20000000-0x201fffff] has been reserved
[    1.016496] system 00:0c: [mem 0x40004000-0x40004fff] has been reserved
[    1.023164] pnp: PnP ACPI: found 13 devices
[    1.027380] ACPI: bus type PNP unregistered
[    1.069328] NET: Registered protocol family 2
[    1.073802] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    1.080911] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    1.087406] TCP: Hash tables configured (established 8192 bind 8192)
[    1.093814] TCP: reno registered
[    1.097066] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    1.103027] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    1.109453] NET: Registered protocol family 1
[    1.113888] RPC: Registered named UNIX socket transport module.
[    1.119848] RPC: Registered udp transport module.
[    1.124584] RPC: Registered tcp transport module.
[    1.129319] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.137207] pci 0000:00:14.0: CONFIG_USB_XHCI_HCD is turned off, defaulting to EHCI.
[    1.145002] pci 0000:00:14.0: USB 3.0 devices will work at USB 2.0 speeds.
[    1.319828] RAPL PMU detected, hw unit 2^-16 Joules, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer
[    1.330470] microcode: CPU0 sig=0x306a9, pf=0x2, revision=0x19
[    1.336345] microcode: CPU1 sig=0x306a9, pf=0x2, revision=0x19
[    1.342219] microcode: CPU2 sig=0x306a9, pf=0x2, revision=0x19
[    1.348091] microcode: CPU3 sig=0x306a9, pf=0x2, revision=0x19
[    1.354011] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[    1.363247] Scanning for low memory corruption every 60 seconds
[    1.369614] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    1.375859] audit: initializing netlink subsys (disabled)
[    1.381303] audit: type=2000 audit(1409408640.207:1): initialized
[    1.406593] bounce pool size: 64 pages
[    1.410374] HugeTLB registered 4 MB page size, pre-allocated 0 pages
[    1.419270] VFS: Disk quotas dquot_6.5.2
[    1.423274] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    1.430492] NFS: Registering the id_resolver key type
[    1.435588] Key type id_resolver registered
[    1.439801] Key type id_legacy registered
[    1.443887] msgmni has been set to 1691
[    1.448153] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    1.455600] io scheduler noop registered
[    1.459551] io scheduler deadline registered
[    1.463931] io scheduler cfq registered (default)
[    1.468770] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    1.474579] input: Power Button as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input0
[    1.482814] ACPI: Power Button [PWRB]
[    1.486548] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
[    1.493996] ACPI: Power Button [PWRF]
[    1.498589] ACPI: Invalid active0 threshold
[    1.503086] thermal LNXTHERM:00: registered as thermal_zone0
[    1.508790] ACPI: Thermal Zone [TZ00] (28 C)
[    1.513309] thermal LNXTHERM:01: registered as thermal_zone1
[    1.519011] ACPI: Thermal Zone [TZ01] (30 C)
[    1.523514] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
?[    1.550750] 00:0a: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    1.579245] 0000:00:16.3: ttyS1 at I/O 0xf0e0 (irq = 19, base_baud = 115200) is a 16550A
[    1.587949] Non-volatile memory driver v1.3
[    1.592176] Linux agpgart interface v0.103
[    1.596541] [drm] Initialized drm 1.1.0 20060810
[    1.602213] [drm] Memory usable by graphics device = 2048M
[    1.613854] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.620519] [drm] Driver supports precise vblank timestamp query.
[    1.626716] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    1.676496] fbcon: inteldrmfb (fb0) is primary device
[    1.834939] Console: switching to colour frame buffer device 240x67
[    1.850515] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    1.856740] i915 0000:00:02.0: registered panic notifier
[    1.867209] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    1.874587] acpi device:49: registered as cooling_device4
[    1.880436] acpi device:4a: registered as cooling_device5
[    1.886237] acpi device:4b: registered as cooling_device6
[    1.892008] acpi device:4c: registered as cooling_device7
[    1.897758] acpi device:4d: registered as cooling_device8
[    1.903450] acpi device:4e: registered as cooling_device9
[    1.909124] acpi device:4f: registered as cooling_device10
[    1.914902] acpi device:50: registered as cooling_device11
[    1.920544] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input2
[    1.929655] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[    1.938702] loop: module loaded
[    1.942280] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x2 impl SATA mode
[    1.950431] ahci 0000:00:1f.2: flags: 64bit ncq pm led clo pio slum part ems apst 
[    1.959099] scsi0 : ahci
[    1.961838] scsi1 : ahci
[    1.964633] scsi2 : ahci
[    1.967506] scsi3 : ahci
[    1.970473] scsi4 : ahci
[    1.973263] scsi5 : ahci
[    1.976005] ata1: DUMMY
[    1.978479] ata2: SATA max UDMA/133 abar m2048 at 0xf7c36000 port 0xf7c36180 irq 41
[    1.985925] ata3: DUMMY
[    1.988390] ata4: DUMMY
[    1.990855] ata5: DUMMY
[    1.993320] ata6: DUMMY
[    1.996682] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
[    2.002819] e100: Copyright(c) 1999-2006 Intel Corporation
[    2.008468] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[    2.015565] e1000: Copyright (c) 1999-2006 Intel Corporation.
[    2.021487] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
[    2.027360] e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
[    2.033429] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[    2.246263] e1000e 0000:00:19.0 eth0: registered PHC clock
[    2.251795] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) 90:b1:1c:6a:5b:02
[    2.259764] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection
[    2.266732] e1000e 0000:00:19.0 eth0: MAC: 10, PHY: 11, PBA No: 1011FF-0FF
[    2.273742] sky2: driver version 1.30
[    2.278178] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    2.284758] ehci-pci: EHCI PCI platform driver
[    2.289322] ehci-pci 0000:00:1a.0: EHCI Host Controller
[    2.294724] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 1
[    2.301405] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[    2.308410] ehci-pci 0000:00:1a.0: debug port 2
[    2.308430] ata2.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[    2.308432] ata2.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[    2.329617] tsc: Refined TSC clocksource calibration: 3192.754 MHz
[    2.329640] ata2.00: ATAPI: HL-DT-ST DVD+-RW GT80N, A103, max UDMA/100
[    2.339321] ehci-pci 0000:00:1a.0: irq 16, io mem 0xf7c38000
[    2.344426] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
[    2.344470] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    2.344471] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.344472] usb usb1: Product: EHCI Host Controller
[    2.344473] usb usb1: Manufacturer: Linux 3.14.4 ehci_hcd
[    2.344474] usb usb1: SerialNumber: 0000:00:1a.0
[    2.344875] hub 1-0:1.0: USB hub found
[    2.344912] hub 1-0:1.0: 3 ports detected
[    2.345228] ehci-pci 0000:00:1d.0: EHCI Host Controller
[    2.345362] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 2
[    2.345379] ehci-pci 0000:00:1d.0: debug port 2
[    2.349307] ehci-pci 0000:00:1d.0: irq 23, io mem 0xf7c37000
[    2.354445] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[    2.354468] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[    2.354469] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.354470] usb usb2: Product: EHCI Host Controller
[    2.354470] usb usb2: Manufacturer: Linux 3.14.4 ehci_hcd
[    2.354471] usb usb2: SerialNumber: 0000:00:1d.0
[    2.354829] hub 2-0:1.0: USB hub found
[    2.354836] hub 2-0:1.0: 3 ports detected
[    2.355032] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    2.355035] ohci-pci: OHCI PCI platform driver
[    2.355115] uhci_hcd: USB Universal Host Controller Interface driver
[    2.355207] usbcore: registered new interface driver usblp
[    2.355252] usbcore: registered new interface driver usb-storage
[    2.355404] i8042: PNP: No PS/2 controller found. Probing ports directly.
[    2.358230] serio: i8042 KBD port at 0x60,0x64 irq 1
[    2.358233] serio: i8042 AUX port at 0x60,0x64 irq 12
[    2.358368] mousedev: PS/2 mouse device common for all mice
[    2.358728] rtc_cmos 00:05: RTC can wake from S4
[    2.358962] rtc_cmos 00:05: rtc core: registered rtc_cmos as rtc0
[    2.359005] rtc_cmos 00:05: alarms up to one month, y3k, 242 bytes nvram, hpet irqs
[    2.359111] ACPI Warning: SystemIO range 0x0000f040-0x0000f05f conflicts with OpRegion 0x0000f040-0x0000f04f (\_SB_.PCI0.SBUS.SMBI) (20131218/utaddress-258)
[    2.359112] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    2.359304] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel at redhat.com
[    2.359375] hidraw: raw HID events driver (C) Jiri Kosina
[    2.360093] usbcore: registered new interface driver usbhid
[    2.360093] usbhid: USB HID core driver
[    2.360581] Netfilter messages via NETLINK v0.30.
[    2.360587] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[    2.360720] ctnetlink v0.93: registering with nfnetlink.
[    2.360782] ip_tables: (C) 2000-2006 Netfilter Core Team
[    2.360797] TCP: cubic registered
[    2.360797] Initializing XFRM netlink socket
[    2.360988] NET: Registered protocol family 10
[    2.361142] ip6_tables: (C) 2000-2006 Netfilter Core Team
[    2.361163] sit: IPv6 over IPv4 tunneling driver
[    2.361328] NET: Registered protocol family 17
[    2.361338] Key type dns_resolver registered
[    2.361669] Using IPI No-Shortcut mode
[    2.361827] registered taskstats version 1
[    2.362061]   Magic number: 10:127:436
[    2.368691] hda-codec: No codec parser is available
[    2.368692] hda-codec: No codec parser is available
[    2.646724] usb 1-1: new high-speed USB device number 2 using ehci-pci
[    2.654295] console [netcon0] enabled
[    2.654306] hpet1: lost 17 rtc interrupts
[    2.657195] ata2.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[    2.657196] ata2.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[    2.659066] ata2.00: configured for UDMA/100
[    2.682964] netconsole: network logging started
[    2.687990] ALSA device list:
[    2.690986]   #0: HDA Intel PCH at 0xf7c30000 irq 43
[    2.691016] scsi 1:0:0:0: CD-ROM            HL-DT-ST DVD+-RW GT80N    A103 PQ: 0 ANSI: 5
[    2.717417] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[    2.724974] cdrom: Uniform CD-ROM driver Revision: 3.20
[    2.730940] sr 1:0:0:0: Attached scsi generic sg0 type 5
[    2.736587] md: Waiting for all devices to be available before autodetect
[    2.743428] md: If you don't use raid, use raid=noautodetect
[    2.749505] md: Autodetecting RAID arrays.
[    2.753637] md: Scanned 0 and added 0 devices.
[    2.758115] md: autorun ...
[    2.760930] md: ... autorun DONE.
[    2.764290] VFS: Cannot open root device "sda1" or unknown-block(0,0): error -6
[    2.771650] Please append a correct "root=" boot option; here are the available partitions:
[    2.780064] 0b00         1048575 sr0  driver: sr
[    2.784740] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    2.784767] usb 1-1: New USB device found, idVendor=8087, idProduct=0024
[    2.784768] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    2.806981] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.14.4 #1
[    2.812937] Hardware name: Dell Inc. OptiPlex 7010/0GXM1W, BIOS A18 04/30/2014
[    2.820204]  00000000 00000000 f546beb4 c1730200 f546befc f546bed4 c172d33c c18c04f4
[    2.828088]  c1ab38e0 00000000 f546befc 00008001 f4fa3000 f546bf28 c1a01ea2 c18b37ac
[    2.835969]  f546befc f546befc fffffffa 00000000 fffffffa f633d460 c18b3f44 6e6b6e75
[    2.843858] Call Trace:
[    2.846320]  [<c1730200>] dump_stack+0x41/0x52
[    2.850794]  [<c172d33c>] panic+0x7d/0x168
[    2.854914]  [<c1a01ea2>] mount_block_root+0x148/0x1cb
[    2.860087]  [<c112ee38>] ? SyS_mknod+0x28/0x30
[    2.864645]  [<c1a02021>] mount_root+0xfc/0x104
[    2.869202]  [<c112ef80>] ? SyS_unlink+0x10/0x20
[    2.873850]  [<c1a02241>] ? initrd_load+0x43/0x47
[    2.878584]  [<c1a02148>] prepare_namespace+0x11f/0x163
[    2.883843]  [<c1a01c0f>] kernel_init_freeable+0x1b5/0x1c2
[    2.889364]  [<c1a014cb>] ? do_early_param+0x7a/0x7a
[    2.894357]  [<c1729e9b>] kernel_init+0xb/0xe0
[    2.898829]  [<c173e877>] ret_from_kernel_thread+0x1b/0x28
[    2.904348]  [<c1729e90>] ? rest_init+0x60/0x60
[    2.908926] Kernel Offset: 0x0 from 0xc1000000 (relocation range: 0xc0000000-0xf7ffdfff)
[    2.917068] drm_kms_helper: panic occurred, switching back to text console
[    2.923993] ------------[ cut here ]------------
[    2.928637] WARNING: CPU: 1 PID: 10 at arch/x86/kernel/smp.c:124 native_smp_send_reschedule+0x46/0x50()
[    2.938089] Modules linked in:
[    2.941172] CPU: 1 PID: 10 Comm: migration/1 Not tainted 3.14.4 #1
[    2.947392] Hardware name: Dell Inc. OptiPlex 7010/0GXM1W, BIOS A18 04/30/2014
[    2.954660]  00000000 00000000 f54b3d00 c1730200 00000000 f54b3d30 c104001f c18c0560
[    2.962542]  00000001 0000000a c18b6fdc 0000007c c102b106 c102b106 00000000 f5c5f500
[    2.970423]  00000001 f54b3d40 c104005d 00000009 00000000 f54b3d48 c102b106 f54b3d64
[    2.978312] Call Trace:
[    2.980773]  [<c1730200>] dump_stack+0x41/0x52
[    2.985246]  [<c104001f>] warn_slowpath_common+0x7f/0xa0
[    2.990590]  [<c102b106>] ? native_smp_send_reschedule+0x46/0x50
[    2.996631]  [<c102b106>] ? native_smp_send_reschedule+0x46/0x50
[    3.002673]  [<c104005d>] warn_slowpath_null+0x1d/0x20
[    3.007841]  [<c102b106>] native_smp_send_reschedule+0x46/0x50
[    3.013710]  [<c1073587>] trigger_load_balance+0x117/0x170
[    3.019230]  [<c1067c66>] scheduler_tick+0x86/0xb0
[    3.024053]  [<c104bbed>] update_process_times+0x4d/0x70
[    3.029399]  [<c1097f3e>] tick_sched_handle.isra.11+0x2e/0x40
[    3.035182]  [<c10980eb>] tick_sched_timer+0x3b/0x70
[    3.040180]  [<c105e5a2>] ? __remove_hrtimer+0x42/0xa0
[    3.045347]  [<c105e840>] __run_hrtimer+0x70/0x190
[    3.050168]  [<c10980b0>] ? tick_sched_do_timer+0x30/0x30
[    3.055601]  [<c105f397>] hrtimer_interrupt+0xf7/0x290
[    3.060771]  [<c102d05a>] local_apic_timer_interrupt+0x2a/0x50
[    3.066642]  [<c102d59e>] smp_apic_timer_interrupt+0x2e/0x50
[    3.072337]  [<c1737e5d>] apic_timer_interrupt+0x2d/0x34
[    3.077683]  [<c10639f2>] ? finish_task_switch+0x42/0xb0
[    3.083029]  [<c1734c99>] __schedule+0x309/0x6e0
[    3.087675]  [<c1734c99>] ? __schedule+0x309/0x6e0
[    3.092499]  [<c106980b>] ? default_wake_function+0xb/0x10
[    3.098019]  [<c107783d>] ? __wake_up_common+0x3d/0x70
[    3.103188]  [<c17350ce>] schedule+0x1e/0x60
[    3.107484]  [<c1062708>] smpboot_thread_fn+0x98/0x140
[    3.112654]  [<c1062670>] ? SyS_setgroups+0x110/0x110
[    3.117736]  [<c105c076>] kthread+0x96/0xb0
[    3.121948]  [<c173e877>] ret_from_kernel_thread+0x1b/0x28
[    3.127467]  [<c105bfe0>] ? flush_kthread_worker+0x70/0x70
[    3.132985] ---[ end trace 831e72b7ce477b55 ]---
[    3.137646] ------------[ cut here ]------------
[    3.142291] WARNING: CPU: 1 PID: 10 at arch/x86/kernel/smp.c:124 native_smp_send_reschedule+0x46/0x50()
[    3.151743] Modules linked in:
[    3.154827] CPU: 1 PID: 10 Comm: migration/1 Tainted: G        W    3.14.4 #1
[    3.162006] Hardware name: Dell Inc. OptiPlex 7010/0GXM1W, BIOS A18 04/30/2014
[    3.169275]  00000000 00000000 f54b3dc8 c1730200 00000000 f54b3df8 c104001f c18c0560
[    3.177160]  00000001 0000000a c18b6fdc 0000007c c102b106 c102b106 c1749340 f5c79500
[    3.185041]  c17492c0 f54b3e08 c104005d 00000009 00000000 f54b3e10 c102b106 f54b3e18
[    3.192929] Call Trace:
[    3.195390]  [<c1730200>] dump_stack+0x41/0x52
[    3.199860]  [<c104001f>] warn_slowpath_common+0x7f/0xa0
[    3.205202]  [<c102b106>] ? native_smp_send_reschedule+0x46/0x50
[    3.211247]  [<c102b106>] ? native_smp_send_reschedule+0x46/0x50
[    3.217290]  [<c104005d>] warn_slowpath_null+0x1d/0x20
[    3.222458]  [<c102b106>] native_smp_send_reschedule+0x46/0x50
[    3.228329]  [<c1066573>] resched_task+0x43/0x60
[    3.232976]  [<c1066a4d>] check_preempt_curr+0x5d/0x80
[    3.238147]  [<c106ce87>] move_task+0x37/0x40
[    3.242529]  [<c106d6a0>] active_load_balance_cpu_stop+0x150/0x1c0
[    3.248748]  [<c106d550>] ? can_migrate_task+0x180/0x180
[    3.254092]  [<c10ad642>] cpu_stopper_thread+0x52/0xf0
[    3.259264]  [<c10639f2>] ? finish_task_switch+0x42/0xb0
[    3.264610]  [<c1734c99>] ? __schedule+0x309/0x6e0
[    3.269431]  [<c1734c99>] ? __schedule+0x309/0x6e0
[    3.274251]  [<c106980b>] ? default_wake_function+0xb/0x10
[    3.279770]  [<c107783d>] ? __wake_up_common+0x3d/0x70
[    3.284940]  [<c106273a>] smpboot_thread_fn+0xca/0x140
[    3.290112]  [<c1062670>] ? SyS_setgroups+0x110/0x110
[    3.295192]  [<c105c076>] kthread+0x96/0xb0
[    3.299401]  [<c173e877>] ret_from_kernel_thread+0x1b/0x28
[    3.304918]  [<c105bfe0>] ? flush_kthread_worker+0x70/0x70
[    3.310436] ---[ end trace 831e72b7ce477b56 ]---
[    3.315412] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
 


On Sunday, August 24, 2014 5:13 PM, lee choon gay <choongay@yahoo.com> wrote:
  


Hi, friend.

I took a look at the /boot/grub/grub.cfg from my PC, it also need initrd to boot up.
I also saw some article from internet saying initrd is a must and the kernel init process is the one that responsible to switch from ram file system to real file system.

Anyway, if I can get a USB to RS232 cable next week I can try to capture the log and see.

Currently I have a workaround to change root to real file system during kernel init.
Below is the code I use.
I put the code in /etc/init.d as startup.sh and create S99startup by refering to other scripts in /etc/init.d to call out my startup.sh .

#!/bin/busybox sh

# Wait for sda detected
sleep 5

# Mount the root filesystem.
mkdir /mnt/root
mount -t ext4 /dev/sda1 /mnt/root
mount -o bind /dev /mnt/root/dev
mount -o bind /proc /mnt/root/proc

# Boot the real thing.
chroot /mnt/root /linuxrc


Thanks.
 


On Thursday, August 21, 2014 9:03 PM, Thomas Petazzoni <thomas.petazzoni@free-electrons.com> wrote:
  


Dear lee choon gay,

On Wed, 20 Aug 2014 19:31:49 -0700, lee choon gay wrote:

> I build the code with settings below.
> menuconfig -> Filesystem images -> ext4.
> menuconfig -> Filesystem images -> tar the root filesystem.
> menuconfig -> System configuration -> Init system with Busybox (default).
> menuconfig -> Toolchain -> Buildroot toolchain (default).
> menuconfig -> Toolchain -> C library uClibc (default).
> 
> Steps to build the partitions.
> 1) I use sudo dd if=/dev/zero bs=1M count=1 of=/dev/sdb to wipe out the original partition in my pendrive.
> 2) sudo fdisk -l will shows /dev/sdb doesn't contain
>  a valid partition table.
> 3) To recreate the partition, I use sudo fdisk /dev/sdb.
> 4) I enter n for new partition, p for primary, label partition as 1, default minimum for first sector, 5000000 for last sector.
> 5) Then enter n again to create second partition, p for primary, label partition as 2, 5000001 for first sector, default maximum for last sector.
> 6) Then enter w to write the partition table.
> 7) Power cycle
 the pendrive.
> 8) I format the partitions using sudo mkfs.ext4 /dev/sdb1 and sudo mkfs.ext4 /dev/sdb2.
> 9) I sudo mount /dev/sdb1 /home/leecgy/temp1 and sudo chmod a+rw /home/leecgy/temp1 to enable writing to partition 1.
> 10) Then sudo mount /dev/sdb2 /home/leecgy/temp2 and sudo chmod a+rw /home/leecgy/temp2 to enable writing to partition 2.
> 11) I right click and create new folder called boot in partition 1, then right click and copy paste the bzImage into boot folder.
> 12) Then right click and create new folder
>  called grub in boot folder, then right click and copy paste the grub.cfg into grub folder.
> 13) I sudo grub-install --boot-directory=/home/leecgy/temp1/boot /dev/sdb to
 install grub.

You may want to follow the instructions available in the help text of
the Grub 2 option, which have been tested.

> 14) I right click and extract the rootfs.tar, then right click and copy paste the contents inside rootfs into partition 2.

Make sure you extract things as root:

    sudo tar -C /home/leecgy/temp2 -xf output/images/rootfs.tar

> When trying to boot up, the code dump a lot of error and stuck. I cannot shift+page up to see the top of the error.

Please give the
 errors that you see. For now, we still have no idea
whether it's a bootloader problem, a kernel problem, or a root
filesystem problem. Without the boot log, there's not much we can do.


Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com/
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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Buildroot] About i386 Architecture and Grub2
  2014-08-30  6:35         ` lee choon gay
@ 2014-08-30  7:30           ` Thomas Petazzoni
  2014-08-30 14:52             ` lee choon gay
  0 siblings, 1 reply; 9+ messages in thread
From: Thomas Petazzoni @ 2014-08-30  7:30 UTC (permalink / raw)
  To: buildroot

Dear lee choon gay,

On Fri, 29 Aug 2014 23:35:59 -0700, lee choon gay wrote:

> I use single partition for this, sda1.
> Seems like the device driver is not ready yet to detect sda1.
> You have any workaround for this?

Indeed.

Please pass "rootwait" in your kernel parameters. It tells the kernel
to wait until the root device appears: USB devices are detected
asynchronously, and sometimes the kernel may try to mount the root
filesystem before the USB devices have been detected.

If that still doesn't work, it means that your kernel configuration is
wrong and lacks some device drivers.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Buildroot] About i386 Architecture and Grub2
  2014-08-30  7:30           ` Thomas Petazzoni
@ 2014-08-30 14:52             ` lee choon gay
  0 siblings, 0 replies; 9+ messages in thread
From: lee choon gay @ 2014-08-30 14:52 UTC (permalink / raw)
  To: buildroot

Hi, Thomas.

It works.
With "rootwait", it can boot with no initrd.
Thank you very much. :) 

On Saturday, August 30, 2014 3:30 PM, Thomas Petazzoni <thomas.petazzoni@free-electrons.com> wrote:

Dear lee choon gay,

On Fri, 29 Aug 2014 23:35:59 -0700, lee choon gay wrote:

> I use single partition for this, sda1.
> Seems like the device driver is not ready yet to detect sda1.
> You have any workaround for this?

Indeed.

Please pass "rootwait" in your kernel parameters. It tells the kernel
to wait until the root device appears: USB devices are detected
asynchronously, and sometimes the kernel may try to mount the root
filesystem before the USB devices have been detected.

If that still doesn't work, it means that your kernel configuration is
wrong and lacks some device drivers.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
-------------- next part --------------
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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Buildroot] About i386 Architecture and Grub2
  2014-08-24  9:13       ` lee choon gay
  2014-08-30  6:35         ` lee choon gay
@ 2014-08-30  7:28         ` Thomas Petazzoni
  1 sibling, 0 replies; 9+ messages in thread
From: Thomas Petazzoni @ 2014-08-30  7:28 UTC (permalink / raw)
  To: buildroot

Dear lee choon gay,

On Sun, 24 Aug 2014 02:13:17 -0700, lee choon gay wrote:

> I took a look at the /boot/grub/grub.cfg from my PC, it also need initrd to boot up.

> I also saw some article from internet saying initrd is a must and the
> kernel init process is the one that responsible to switch from ram
> file system to real file system.

This is wrong. Don't believe what you read on "the Internet". An initrd
is an *optional* mechanism. Basically, you have several choices:

 1/ The kernel directly mounts the real root filesystem, as indicated
    by the root= kernel parameter. There is no initrd involved
    whatsoever.

 2/ There is an initrd, but it never switches to another root
    filesystem. This is sometimes used for very small systems: it allows
    the entire filesystem (contained in the initrd) to be loaded in RAM
    by the bootloader. I typically use this when I do kernel
    development: this way the root filesystem (contained in the initrd)
    can be used by the kernel without the need of any network or
    storage driver.

 3/ There is an initrd, which does a part of the system initialization,
    and then switches to the real root filesystem. This is what is used
    by most desktop/server Linux distributions.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2014-08-30 14:52 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-08-20 11:37 [Buildroot] About i386 Architecture and Grub2 lee choon gay
2014-08-20 12:10 ` Thomas Petazzoni
2014-08-21  2:31   ` lee choon gay
2014-08-21 13:03     ` Thomas Petazzoni
2014-08-24  9:13       ` lee choon gay
2014-08-30  6:35         ` lee choon gay
2014-08-30  7:30           ` Thomas Petazzoni
2014-08-30 14:52             ` lee choon gay
2014-08-30  7:28         ` Thomas Petazzoni

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