Re: [Xen-devel] xen-pvops dom0 booting issue

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Mar 25, 2010 at 04:37:11PM -0700, kishore kumar wrote:
>    Hi,
> 
>    my grub.conf is as below
> 
>    kernel       /xen.gz dom0_mem=1024M loglvl=all guest_loglvl=all
>    sync_console console_to_ring com1=115200,8n1 console=vga,com1 lapic=debug
>    apic_verbosity=debug apic=debug iommu=1 msi=1
>    module       /vmlinuz-2.6.32.10 ro root=/dev/VolGroup00/LogVol01
>    console=hvc0 earlyprintk=xen nomodeset initcall_debug debug loglevel=10
>    module       /initrd-2.6.32.10.img
> 
>    I tried changing the root=/dev/VolGroup00/LogVol00 as well.
> 
>    ================================
>    1.  df -h gives me
> 
>    ===================================
> 
>    Filesystem Size Used Avail Use% Mounted on
> 
>    /dev/mapper/VolGroup00-LogVol00
> 
>    221G 11G 199G 6% /
> 
>    /dev/sda1 99M 34M 61M 36% /boot
> 
>    tmpfs 1.8G 0 1.8G 0% /dev/shm
> 
>    ===================================
>    2.  pvscan gives me
>    ===================================
>    PV /dev/sda2 VG VolGroup00 lvm2 [232.78 GB / 0 free]
> 
>    Total: 1 [232.78 GB] / in use: 1 [232.78 GB] / in no VG: 0 [0 ]
> 
>    ===================================
> 
>    3.  cat /etc/fstab gives mes
> 
>    ===================================
> 
>    /dev/VolGroup00/LogVol00 / ext3 defaults 1 1
> 
>    LABEL=/boot /boot ext3 defaults 1 2
> 
>    tmpfs /dev/shm tmpfs defaults 0 0
> 
>    devpts /dev/pts devpts gid=5,mode=620 0 0
> 
>    sysfs /sys sysfs defaults 0 0
> 
>    proc /proc proc defaults 0 0
> 
>    /dev/VolGroup00/LogVol01 swap swap defaults 0 0
> 
>    ===================================
> 
>    I get below message while booting
> 

Please paste the full boot messages.

>From this log we can't see if /dev/sda was detected or not. 
Is the disk driver included in the initrd image? 

When you generate the initrd image, run "mkinitrd -v" so 
you get verbose output of which drivers are included.

(rhel/centos/fedora mkinitrd reads the drivers needed from /etc/modprobe.conf)

-- Pasi

>    ===================================
> 
>    Reading all physical volumes.  This may take a while...
>    Activating logical volumes
>      Volume group "VolGroup00" not found
>    Trying to resume from /dev/VolGroup00/LogVol01
>    Unable to access resume device (/dev/VolGroup00/LogVol01)
>    Creating root device.
>    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
>    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
>    init used greatest stack depth: 4088 bytes left
>    Kernel panic - not syncing: Attempted to kill init!
>    Pid: 1, comm: init Not tainted 2.6.32.10 #1
>    Call Trace:
>     [<ffffffff8105b743>] panic+0xa5/0x167
>     [<ffffffff8100ed91>] ? xen_force_evtchn_callback+0xd/0xf
>     [<ffffffff8105f2af>] ? do_exit+0x38a/0x701
>     [<ffffffff8100f44f>] ? xen_restore_fl_direct_end+0x0/0x1
>     [<ffffffff8108f81f>] ? lock_release+0x179/0x184
>     [<ffffffff8108ca21>] ? trace_hardirqs_on+0xd/0xf
>     [<ffffffff8147e77f>] ? _write_unlock_irq+0x37/0x3c
>     [<ffffffff8105efa3>] do_exit+0x7e/0x701
>     [<ffffffff8100f462>] ? check_events+0x12/0x20
>     [<ffffffff8105f6c2>] sys_exit_group+0x0/0x1b
>     [<ffffffff8105f6d9>] sys_exit_group+0x17/0x1b
>     [<ffffffff81012d72>] system_call_fastpath+0x16/0x1b
> 
>    Can you let me know what should be the grub.conf??

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