Xen project Mailing List

On 6/14/06, vineet chadha <virtual.chadha@xxxxxxxxx> wrote:

Hi keir,

Normal kernel is booting and detecting SCSI disk fine. When i boot in Xen mode, it gives this problem. If you put search "switchroot mount failed" in Xen user/dev list, u will see this has been a common issuse with no solution posted. Yes, I also believe it is problem with xen kernel not detecting the SCSI drivers or something.

which log file u want me to check.

Regards,

Vineet

On 6/14/06, Keir Fraser < Keir.Fraser@xxxxxxxxxxxx> wrote:

Does teh kernel boot output indicate that the SCSI module has loaded
and actually detected any discs (sda in particular)? This doesn't look
like a Xen-specific problem.

-- Keir

On 14 Jun 2006, at 20:38, vineet chadha wrote:

> Hi,
>
> I am attaching lpci and lsmod for Xen boot problem mentioned below.
> Any clues ?
>
> -Vineet
>
> On 6/13/06, vineet chadha < virtual.chadha@xxxxxxxxx> wrote: Hi,
>>
>> Can xen developers kindly post relevant solution to this problem. I

>> have seen many times onxen list- not a simple answer. It has come

>> to the point of frustration. I can provide any information needed.
>>
>> Regards,
>> Vineet
>>
>> ---------- Forwarded message ----------
>> From: vineet chadha <virtual.chadha@xxxxxxxxx>
>> Date: Jun 13, 2006 8:42 AM
>> Subject: switchroot mount failed
>> To: xen-users@xxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx
>>
>>
>> All,
>> I am running xen3.0.2 and xen unstable on RHEL 4, and get this error
>> when trying to boot Xen kernel(domain0)
>>  ......
>> Creating root device
>> Mounting root filesystem
>> mount: error 6 mounting ext3
>> mount: error 2 mounting none
>> Switching to new root
>> switchroot: mount failed: 22
>> umount /initrd/dev failed: 2
>> Kernel panic - not syncing: Attempting to kill init!
>> Then system reboot.In grub.conf,I have change  d the root=LABEL=/ to
>> the actual device
>> (root=/dev/sda  3),and make the same change in /etc/fstab,  but I got
>> same error.
>> My system is Intel Xeon, Dual Core Machine, 2.8GHz. 32 bit Linux
>>
>> my installation steps as below,
>> # pwd
>> /home/vineet/xen-3.0.2
>> # make world
>> # make install
>>
>>  # cd /boot
>> # depmod 2.6.16-xen
>>  # mkinitrd -f -v initrd-2.6.16-xen.img 2.6.16-xen
>> Creating initramfs
>> Looking for deps of module scsi_mod
>> Looking for deps of module sd_mod scsi_mod
>>  Looking for deps of module scsi_mod
>> Looking for deps of module unknown
>> Looking for deps of module mptbase
>> Looking for deps of module mptscsih mptbase scsi_mod
>> Looking for deps of module mptbase
>> Looking for deps of module scsi_mod
>> Looking for deps of module ide-disk
>> Looking for deps of module dm-mod
>> Looking for deps of module ext3 jbd
>>  Looking for deps of module jbd
>> Using modules: ./kernel/drivers/scsi/scsi_mod.ko
>> ./kernel/drivers/scsi/sd_mod.ko
>> ./kernel/drivers/message/fusion/mptbase.ko
>> ./kernel/drivers/message/fusion/mptscsih.ko ./kernel/drivers/md/dm-
>> mod.ko ./kernel/fs/jbd/jbd.ko ./kernel/fs/ext3/ext3.ko
>> /sbin/nash -> /tmp/initrd.L28813/bin/nash
>> /sbin/insmod.static -> /tmp/initrd.L28813/bin/insmod
>> /sbin/udev.static -> /tmp/initrd.L28813/sbin/udev
>> /etc/udev/udev.conf -> /tmp/initrd.L28813/etc/udev/udev.conf
>> copy from
>> /lib/modules/2.6.16-xen/./kernel/drivers/scsi/scsi_mod.ko(elf32-i386)
>> to /tmp/initrd.L28813/lib/scsi_mod.ko(elf32-i386)
>> copy from
>> /lib/modules/2.6.16-xen/./kernel/drivers/scsi/sd_mod.ko(elf32-i386)
>> to /tmp/initrd.L28813/lib/sd_mod.ko(elf32-i386)
>> copy from
>> /lib/modules/2.6.16-xen/./kernel/drivers/message/fusion/
>> mptbase.ko(elf32-i386) to
>> /tmp/initrd.L28813/lib/mptbase.ko(elf32-i386)
>> copy from
>> /lib/modules/2.6.16-xen/./kernel/drivers/message/fusion/
>> mptscsih.ko(elf32-i386) to
>> /tmp/initrd.L28813/lib/mptscsih.ko(elf32-i386)
>> copy from
>> /lib/modules/2.6.16-xen/./kernel/drivers/md/dm- mod.ko(elf32-i386) to
>> /tmp/initrd.L28813/lib/dm-mod.ko(elf32-i386)
>> copy from /lib/modules/2.6.16-xen/./kernel/fs/jbd/jbd.ko(elf32-i386)
>> to /tmp/initrd.L28813/lib/jbd.ko(elf32-i386)
>>  copy from
>> /lib/modules/2.6.16-xen/./kernel/fs/ext3/ext3.ko(elf32-i386) to
>> /tmp/initrd.L28813/lib/ext3.ko(elf32-i386)
>> Loading module scsi_mod
>> Loading module sd_mod
>> Loading module mptbase
>>  Loading module mptscsih
>> Loading module dm-mod
>> Loading module jbd
>> Loading module ext3
>> #
>> My grub.conf file:
>> default=0
>> timeout=5
>> splashimage=(hd0,0)/grub/splash.xpm.gz
>> hiddenmenu

>> titleRed Hatenterprise linux(2.6.9-22.ELsmp)

>> root (hd0,0)
>> kernel /vmlinuz-2.6.9-22.ELsmp ro root=LABEL=/ rhgb quiet
>>   initrd /initrd-2.6.9-22.ELsmp.img

>> title Red Hatenterprise linux ( 2.6.9-22.EL)

>>   root (hd0,0)
>> kernel /vmlinuz-2.6.9-22.EL ro root=LABEL=/ rhgb quiet
>> initrd /initrd- 2.6.9-22.EL.img
>> title Xen 3.0 / XenLinux 2.6
>> root (hd0,0)
>> kernel /xen- 3.0.gz
>> module /vmlinuz-2.6-xen root=LABEL=/ ro console=tty0
>>   module /initrd-2.6.16-xen.img
>> I have tried giving different options to creation of mkinitrd command
>> but it doesnot work. I have tried "builtin" and "with" options and it
>> doesnot worl. In addition, I have tried to make hyperthreading
>> disabled,it doesnot work for me.
>> I have seen many such messages but no concrete solution to this
>> problem. Please help.
>>
>>
>> -Vineet<lspci.out><lsmod.out>_________________________________________
>> ______
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Re: [Xen-users] Re: [Xen-devel] Re: switchroot mount failed