Re: boot Xen 4.0

[ccmail111 <ccmail111@yahoo.com>]

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Thanks for tip below.

1) I tried rebuild kernel with option below. I now build kernel with:

CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y


But see problem below during boot up as below..

grub.conf:

title Xen 4.0 debug  XenLinux 2.6
        root (hd0,0)
       kernel /xen-4.0.0.gz console=com1, com1=115200,8n1 noreboot loglvl=all  vga=text-80x50,keep iommu=off apic=debug guest_loglvl=all
       module /vmlinuz-2.6.31.13  ro root=/dev/ram0 console=hvc0  earlyprintk=xen nomodeset initcall_debug debug loglevel=10
       module
 /initrd.img-2.6.31.13


2) Is there a
 reference (working) ramdisk/initrd for Xen4.0 with busybox or such ? I created ramdisk as:

# mkinitrd -v -f --builtin=ehci-hcd --builtin=ohci-hcd --builtin=uhci-hcd --builtin=ahci --builtin=aacraid --builtin=aacraid --builtin=sd_mod --builtin=scsi_mod /boot/initrd.img-2.6.31.13 2.6.31.13


Using this (since there is no busybox or such):

Trying to resume from /dev/sdb2
Unable to access resume device (/dev/sdb2)
Creating root device.
usb 5-1: new full speed USB device using uhci_hcd and address 2
Mounting root filesystem.
VFS: Can't find ext3 filesystem on dev ram0.
mount: error mounting /dev/root on /sysroot as ext3: Invalid argument
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
switchroot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!
Pid: 1, comm: init Not tainted 2.6.31.13 #8
Call Trace:
 [<ffffffff8106bbeb>] panic+0xb7/0x172
 [<ffffffff8106fe04>] ? do_exit+0x37c/0x6de
 [<ffffffff8100fa6f>] ? xen_restore_fl_direct_end+0x0/0x1
 [<ffffffff810a1c6b>] ? lock_release+0x197/0x1b8
 [<ffffffff8109ef6e>] ? trace_hardirqs_on+0x20/0x36
 [<ffffffff815436be>] ? _write_unlock_irq+0x46/0x61
 [<ffffffff8106fb15>] do_exit+0x8d/0x6de
 [<ffffffff8107021e>] sys_exit_group+0x0/0x42
 [<ffffffff8154265c>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff81070248>] sys_exit_group+0x2a/0x42
 [<ffffffff81015332>] system_call_fastpath+0x16/0x1b


Any suggestions ?


Thanks !

CM



--- On Sat, 5/15/10, yingbin wang <yingbin.wangyb@gmail.com> wrote:

From: yingbin wang
 <yingbin.wangyb@gmail.com>
Subject: Re: [Xen-devel] boot Xen 4.0
To: "ccmail111" <ccmail111@yahoo.com>
Cc: "Pasi Kärkkäinen" <pasik@iki.fi>, deshantm@gmail.com, xen-devel@lists.xensource.com
Date: Saturday, May 15, 2010, 12:34 PM

I met similar problems and solved it.

if your grub.conf is OK, you can try to edit a option of  your .config.
CONFIG_SYSFS_DEPRECATED_V2=y

2010/5/14 ccmail111 <ccmail111@yahoo.com>
>
> Thanks
 Pasi/Todd,
>
> I did:
> # mkinitrd -v -f --builtin=ehci-hcd --builtin=ohci-hcd --builtin=uhci-hcd --builtin=ahci --builtin=aacraid --builtin=aacraid --builtin=sd_mod --builtin=scsi_mod /boot/initrd.img-2.6.31.13 2.6.31.13
>
>
> Now
> I see during boot: kernel panic:
>
> Mounting root filesystem.
> mount: could not find filesystem '/dev/root'
> setting up other filesystems
> setting up new root fs
> setuproot: moving /dev failed No such file or directory
> setuproot: error mounting /proc: No such file or directory
> setuproot: error mounting /sys: No such file or directory
> switchroot: mount failed: No such file or directory
>   kernel panic - not syncing : Attempted to kill init !
>
>
>
>
> --- On Thu, 5/13/10, Pasi Kärkkäinen <pasik@iki.fi> wrote:
>
> From: Pasi Kärkkäinen
 <pasik@iki.fi>
> Subject: Re: [Xen-devel] initrd Xen 4.0
> To: "ccmail111" <ccmail111@yahoo.com>
> Cc: deshantm@gmail.com, xen-devel@lists.xensource.com
> Date: Thursday, May 13, 2010, 4:27 PM
>
> On Thu, May 13, 2010 at 01:08:36PM -0700, ccmail111 wrote:
> >    The #5 of README is not clear in details.
> >    which directory to run depmod and mkinitrd from ?
> >
>
> It doesn't matter.
>
>
 >    I see:
> >
> >    # depmod xen-4.0.0
> >    WARNING: Couldn't find symtab and strtab in module xen-4.0.0
> >
>
> Wrong. You need to run depmod for the *kernel*, not for xen.
>
> So like this:
> depmod -a 2.6.32.12
>
> Or whatever is your kernel version.
>
> -- Pasi
>
> >    # ls -l
> >    total 1356
> >    -rw-r--r-- 1 root root 1380620 May 13 13:05 xen-4.0.0
> >
> >    Any suggestions ?
> >
> >    --- On Wed, 5/12/10, Todd Deshane <deshantm@gmail.com> wrote:
> >
> >      From: Todd Deshane <deshantm@gmail.com>
> >      Subject: Re: [Xen-devel] initrd Xen 4.0
> >      To:
 "ccmail111" <ccmail111@yahoo.com>
> >      Cc: xen-devel@lists.xensource.com
> >      Date: Wednesday, May 12, 2010, 9:46 PM
> >
> >      Hi,
> >
> >      See inline.
> >
> >      On Wed, May 12, 2010 at 12:25 PM, ccmail111 <[1]ccmail111@yahoo.com>
> >      wrote:
> >      >
> >   
   > Hi,
> >      >
> >      > I downloaded Xen 4.0 and did:
> >      > make install
> >      > I donot see initrd (ramdisk) being created at all.
> >      >
> >      > Any suggestions ?
> >      >
> >
> >      Step 5 of the README
> >         Depending on your config, you may need to use 'mkinitrd' to create
> >         an initial ram disk, just like a native system e.g.
> >          # depmod 2.6.18-xen
> >          # mkinitrd -v -f --with=aacraid --with=sd_mod --with=scsi_mod
> >      initrd-2.6.18-xen.img 2.6.18-xen
> >     
    Other systems may requires the use of 'mkinitramfs' to create the
> >         ram disk.
> >          # depmod 2.6.18-xen
> >          # mkinitramfs -o initrd-2.6.18-xen.img 2.6.18-xen
> >
> >      You may need to change the kernel version based on what you built.
> >      Also some distros use different commands to build initrd files.
> >
> >      I actually forgot about this step for a second too.
> >
> >      Thanks,
> >      Todd
> >
> >      --
> >      Todd Deshane
> >      [2]http://todddeshane.net
> >     
 [3]http://runningxen.com
> >
> > References
> >
> >    Visible links
> >    1. file:///mc/compose?to=ccmail111@yahoo.com
> >    2. http://todddeshane.net/
> >    3. http://runningxen.com/
>
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xensource.com
> > http://lists.xensource.com/xen-devel
>
>
>
>
 _______________________________________________
> Xen-devel mailing list
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>



      

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