All,
Sorry, I forgot subject in original mail ;-(
I am running xen3.0.2 on CentOS4.2, and get this error when trying to boot Xen kernel(domain0)
ERROR1: Before build initrd(mkinitrd -f -v initrd-2.6.16-xen.img 2.6.16-xen),I got this error during boot:
VFS: Cannot open root device "/" 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)
ERROR2: After initrd built, I got another error here during boot:
......
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!
>More,In grub.conf,I have changed the root=LABEL=/ to the actual device
(root=/dev/sda3),and make the same change in /etc/fstab,but I got same error.
my installation steps as below,
any clues?
Thanks
--Taylor
# pwd
/home/taylor/xen-3.0.2
# make KERNELS=linux-2.6-xen world
# make install
reboot system and got ERROR1:....
# 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
#
added "module /initrd-2.6.16-xen.img" into grub.conf file.
reboot system and got ERROR2:
My grub.conf file:
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS-4 i386 (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 CentOS-4 i386-up (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
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