debian 6.0 boot failure after update to grub2

Excerpts from Philipp's message of 2011-06-25 15:12:26 +0200:

Hi there,
I have a debian server that doesn't boot anymore since I ran
upgrade-from-grub-legacy. It uses xen. I managed to upgrade to Debian
6 and got everything working. Well, a power outage caused my domUs to
not boot anymore and while trying to deal with that I also figured I
didn't complete the upgrade to grub2 and thought it might fix things.
Well, now nothing boots anymore.

The main issue appears to be that it can't find the root device for some
reason. The grub2 menu shows up, I can select boot options, some of
those seem to boot but can't find the root device (the very disk grub2
and everything else is on).

I tried adding "dummy=dummy" as the first parameter in the grub.cfg file
for "multiboot" and all occurrences of"module", but that didn't help.
(from:
http://wiki.xensource.com/xenwiki/X...7cb1408730)

On a sidenote, vga out on the server doesn't seem to work, so I'm trying
to boot in qemu. As a consequence I get mdadm errors because the raid
disks aren't present, but since those are used for data storage only to
my knowledge this shouldn't matter.

Any advice on how to get the system to boot again is appreciated.

Regards,
Philipp

Just to add a little more information:
The system waits for the root file system for a while and then drops
into a shell with the (initramfs) prompt.

There's no /dev/sd* or /dev/disk for some reason.

The currently installed kernels are:
vmlinuz-2.6.32-5-xen-amd64
vmlinuz-2.6.26-2-xen-amd64
vmlinuz-2.6.26-2-amd64

None of those boots.

Following is my current grub.cfg
Thanks for any hints.

Regards,
Philipp


### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}

function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}

insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmoded0x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/20_linux_xen ###
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN 4.0-amd64' --class debian --class gnu-linux --class gnu --class os --class xen {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos0)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
multiboot /boot/xen-4.0-amd64.gz /boot/xen-4.0-amd64.gz placeholder
module /boot/vmlinuz-2.6.32-5-xen-amd64 placeholder root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro
echo 'Loading initial ramdisk ...'
module /boot/initrd.img-2.6.32-5-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN 4.0-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os --class xen {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
multiboot /boot/xen-4.0-amd64.gz /boot/xen-4.0-amd64.gz placeholder
module /boot/vmlinuz-2.6.32-5-xen-amd64 placeholder root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro single
echo 'Loading initial ramdisk ...'
module /boot/initrd.img-2.6.32-5-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN xen_domU_initrd_xfs.img' --class debian --class gnu-linux --class gnu --class os --class xen {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
multiboot /boot/xen_domU_initrd_xfs.img placeholder
module /boot/vmlinuz-2.6.32-5-xen-amd64 placeholder root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro
echo 'Loading initial ramdisk ...'
module /boot/initrd.img-2.6.32-5-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN xen_domU_initrd_xfs.img (recovery mode)' --class debian --class gnu-linux --class gnu --class os --class xen {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
multiboot /boot/xen_domU_initrd_xfs.img placeholder
module /boot/vmlinuz-2.6.32-5-xen-amd64 placeholder root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro single
echo 'Loading initial ramdisk ...'
module /boot/initrd.img-2.6.32-5-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN xen_domU_initrd_xfs_raid.img' --class debian --class gnu-linux --class gnu --class os --class xen {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
multiboot /boot/xen_domU_initrd_xfs_raid.img placeholder
module /boot/vmlinuz-2.6.32-5-xen-amd64 placeholder root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro
echo 'Loading initial ramdisk ...'
module /boot/initrd.img-2.6.32-5-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN xen_domU_initrd_xfs_raid.img (recovery mode)' --class debian --class gnu-linux --class gnu --class os --class xen {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
multiboot /boot/xen_domU_initrd_xfs_raid.img placeholder
module /boot/vmlinuz-2.6.32-5-xen-amd64 placeholder root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro single
echo 'Loading initial ramdisk ...'
module /boot/initrd.img-2.6.32-5-xen-amd64
}
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

### BEGIN /etc/grub.d/50_linux ###
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
linux /boot/vmlinuz-2.6.32-5-xen-amd64 root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-5-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
linux /boot/vmlinuz-2.6.32-5-xen-amd64 root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-5-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.26-2-xen-amd64' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.26-2-xen-amd64 ...'
linux /boot/vmlinuz-2.6.26-2-xen-amd64 root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.26-2-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.26-2-xen-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.26-2-xen-amd64 ...'
linux /boot/vmlinuz-2.6.26-2-xen-amd64 root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.26-2-xen-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.26-2-amd64' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.26-2-amd64 ...'
linux /boot/vmlinuz-2.6.26-2-amd64 root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.26-2-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.26-2-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod jfs
set root='(/dev/sdd,msdos1)'
search --no-floppy --fs-uuid --set 4745f09d-c277-4113-b84a-898fa406e61f
echo 'Loading Linux 2.6.26-2-amd64 ...'
linux /boot/vmlinuz-2.6.26-2-amd64 root=UUIDG45f09d-c277-4113-b84a-898fa406e61f ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.26-2-amd64
}
### END /etc/grub.d/50_linux ###


To UNSUBSCRIBE, email to
with a subject of "unsubscribe". Trouble? Contact
Archive: http://lists.debian.org/