Re: Kernel Panic + Intel SATA

[Marcio Oliveira <moliveira@rhla.com>]

linux-os (Dick Johnson) wrote:

>On Wed, 26 Oct 2005, [iso-8859-1] Márcio Oliveira wrote:
>
>  
>
>>Hi there!
>>
>> I have a IBM ThinkPad t43 running Fedora Core  Linux 4 and kernel
>>2.6.12-1.146_FC4. I recompiled the kernel (2.6.13.4 - kernel.org) and I
>>am geting the following message when the computer boots:
>>
>>Creating root device
>>mkrootdev: label / not found
>>    
>>
>
>This label was no good it needs to be /dev/sda6 from your fstab
>You will need to put the device name in /boot/*/*.conf lilo or
>grub instead on "label"
>  
>
yeah, I try to boot it using "root=/dev/sda6" instead "root=LABEL=/" 
parameter, but the system still not booting...

>  
>
>>Mounting root filesystem
>>mount: error 2 mouting ext3
>>    
>>
>
>Error 2 == ENOENT
>  
>

ENOENT? What it means?

>  
>
>>Switchimg to new root
>>ERROR opening /dev/console!!!!: 2
>>switchroot: mount failed: 22
>>    
>>
>
>Error 22 = EINVAL
>  
>

EINVAL? What it means?

>  
>
>>Kernel Panic - not syncing to kill init!
>>
>>   I added the fdisk command to the initrd file and the init script
>>executes it every boot to check if the kernel was recognizing the SATA
>>disk. All partitions are listed in the boot process and the disk is
>>recognized without problems, but the kernel still not able to mount the
>>root partition:
>>
>>scsi0: ata_piix
>>...
>>...
>>Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
>>
>>Disk /dev/sda: 60.0 GB, 60011642880 bytes
>>255 heads, 63 sectors/track, 7296 cylinders
>>Units = cylinders of 16065 * 512 = 8225280 bytes
>>
>>  Device Boot      Start         End      Blocks   Id  System
>>/dev/sda1   *           1        1913    15361888+   7  HPFS/NTFS
>>Partition 1 does not end on cylinder boundary.
>>/dev/sda2            6778        7296     4165560   12  Compaq diagnostics
>>Partition 2 does not end on cylinder boundary.
>>/dev/sda3            1914        1929      128520   83  Linux
>>/dev/sda4            1930        6777    38941560    5  Extended
>>/dev/sda5            1930        2843     7341673+  8e  Linux LVM
>>/dev/sda6            2844        3235     3148708+  83  Linux
>>/dev/sda7            3236        6777    28451083+   b  W95 FAT32
>>
>>Partition table entries are not in disk order
>>
>>  I also checked the initrd file and all seems ok.
>>  Thinks I made:
>>
>>- compiled the kernel with ext3 modular support;
>>- compiled the kernel with ext3 built-in support;
>>- checked the modules loaded in the initrd;
>>- rebuilded and customized the initrd;
>>- checked if the SATA controller is recognized at boot time;
>>- tested fstab with and without "LABEL" partition name.
>>
>>Any idea?
>>
>>  Related Files:
>>
>>/etc/fstab:
>>
>># This file is edited by fstab-sync - see 'man fstab-sync' for details
>>/dev/sda6                 /                       ext3
>>defaults        1 1
>>#LABEL=/                 /                       ext3    defaults        1 1
>>#LABEL=/boot             /boot                   ext3    defaults        1 2
>>/dev/sda3             /boot                   ext3    defaults        1 2
>>/dev/devpts             /dev/pts                devpts  gid=5,mode=620  0 0
>>/dev/shm                /dev/shm                tmpfs   defaults        0 0
>>/dev/proc               /proc                   proc    defaults        0 0
>>/dev/sys                /sys                    sysfs   defaults        0 0
>>/dev/VG00/usr           /usr                    ext3    defaults        1 2
>>/dev/VG00/var           /var                    ext3    defaults        1 2
>>/dev/VG00/swap          swap                    swap    defaults        0 0
>>/dev/sda7               /mnt/windows            vfat    user,defaults   0 0
>>/dev/hdc                /media/cdrecorder       auto
>>pamconsole,exec,noauto,managed 0 0
>>
>>/boot/grub/menu.lst
>>
>>title Fedora Core (2.6.13-4)
>>       root (hd0,2)
>>       kernel /vmlinuz-2.6.13.4-ext3 ro root=LABEL=/ hda=noprobe 1
>>       initrd /initrd-2.6.13.4-ext3.img
>>
>>*** I tested the root=LABEL=/ and root=/dev/sda6 kernel comand options.
>>
>>Initrd file contents:
>>
>>./sbin
>>./loopfs
>>./proc
>>./init
>>./sysroot
>>./bin
>>./bin/hotplug
>>./bin/nash
>>./bin/udev
>>./bin/fdisk
>>./bin/insmod
>>./bin/udevstart
>>./bin/modprobe
>>./dev
>>./dev/tty3
>>./dev/tty4
>>./dev/tty1
>>./dev/console
>>./dev/tty2
>>./dev/null
>>./dev/ram
>>./dev/systty
>>./sys
>>./lib
>>./lib/libc.so.6
>>./lib/ld-2.3.5.so
>>./lib/scsi_mod.ko
>>./lib/ld-linux.so.2
>>./lib/sd_mod.ko
>>./lib/libc-2.3.5.so
>>./lib/dm-mod.ko
>>./lib/ata_piix.ko
>>./lib/libata.ko
>>./etc
>>./etc/udev
>>./etc/udev/udev.conf
>>
>>/init initrd file:
>>
>>#!/bin/nash
>>mount -t proc /proc /proc
>>setquiet
>>echo Mounted /proc filesystem
>>echo Mounting sysfs
>>mount -t sysfs /sys /sys
>>echo Creating /dev
>>mount -o mode=0755 -t tmpfs /dev /dev
>>mknod /dev/console c 5 1
>>mknod /dev/null c 1 3
>>mknod /dev/zero c 1 5
>>mkdir /dev/pts
>>mkdir /dev/shm
>>echo Starting udev
>>/sbin/udevstart
>>echo -n "/sbin/hotplug" > /proc/sys/kernel/hotplug
>>echo "Loading scsi_mod.ko module"
>>insmod /lib/scsi_mod.ko
>>echo "Loading sd_mod.ko module"
>>insmod /lib/sd_mod.ko
>>echo "Loading libata.ko module"
>>insmod /lib/libata.ko
>>echo "Loading ata_piix.ko module"
>>insmod /lib/ata_piix.ko
>>echo "Loading dm-mod.ko module"
>>insmod /lib/dm-mod.ko
>>sleep 10
>>/sbin/fdisk -l
>>sleep 10
>>/sbin/udevstart
>>echo Creating root device
>>mkrootdev /dev/root
>>echo Mounting root filesystem
>>mount -o defaults --ro -t ext3 /dev/root /sysroot
>>echo Switching to new root
>>switchroot --movedev /sysroot
>>
>>
>>-
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>>
>>    
>>
>
>Cheers,
>Dick Johnson
>Penguin : Linux version 2.6.13.4 on an i686 machine (5589.55 BogoMips).
>Warning : 98.36% of all statistics are fiction.
>
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>
>Thank you.
>  
>
   This is very strange, at the boot time the system can show the disk 
partitions as I said, but cannot  mount it. I tryed to compile the 
following kernel versions: 2.6.12 (kernel.org), 2.6.11 (fedora core 4), 
2.6.12 (fedora core 4) and 2.6.13 (fedora core 4) and all of it shows 
the error message when the system is trying to mount the root partition 
at boot time. Any more idea about what should I do?

Thanks.
Marcio Oliveira.