Ralf Hornik Mailings
2008-Nov-27 14:37 UTC
[Xen-users] cannot boot from /dev/xvda1 on centos 5.2 PVM
Hi list,
I want to use the centos kernel-xen in a centos 5.2 environment but I
cannot boot because the kernel shows:
VFS: Cannot open root device "xvda1" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
However, the initrd has definitely the drivers for xennet and xenblk
(I unpacked ans looked inside) but while booting, there are no devices
recognised.
my Corresponding files are attached.
Hope that somebody can help me...
Ralf
--------------------------------------------------------------------------
root@domU# cat /boot/grub/menu.lst
default 0
timeout 3
title CENTOS 5.2 PVM CA-Off
root (hd0,0)
kernel /boot/vmlinuz-2.6.18-92.1.18.el5xen console=xvc0
root=/dev/xvda1 ro
module /boot/initrd-2.6.18-92.1.18.el5xen.img
boot
---------------------------------------------------------------------------
root@domU # cat etc/fstab
/dev/xvda1 / ext3 defaults 1 1
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/xvda2 swap swap defaults 0 0
--------------------------------------------------------------------------
root@doU # cat /etc/modprobe.conf
alias eth0 xennet
alias scsi_hostadapter xenblk
--------------------------------------------------------------------------
root@dom0:/etc/xen# cat pvm
bootloader = ''/usr/bin/pygrub''
memory = ''256''
vcpus = 1
disk = [
''phy:/dev/xen_vol/xen_ca-off-disk,xvda1,w'',
''phy:/dev/xen_vol/xen_ca-off-swap,xvda2,w'',
]
name = ''ca-off''
vif = [ ''ip=10.0.0.9,mac=00:16:3e:04:e4:6d'' ]
on_poweroff = ''destroy''
on_reboot = ''restart''
on_crash = ''restart''
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