*** This bug is a duplicate of bug 216176 ***
https://bugs.launchpad.net/bugs/216176
Public bug reported:
Binary package hint: grub-pc
Okay I know I'm a crazy person for trying this stuff out but I was
curious.
I'm attempting to boot Xen 3.5 unstable with a vanilla 2.6.31.4 with the
xen-pv ops dom0 support enabled.
I started by following instructions found here:
http://wiki.xensource.com/xenwiki/XenParavirtOps
Everything compiled fine but this isn't what the bug is about. For some
reason grub-pc on amd64 seems to strip out the root= commandline
argument to the kernel when loading it after xen.
============ GRUB-PC CONFIG ================
r...@uber-gamer:~# cat /etc/grub.d/40_custom
#!/bin/sh
exec tail -n +3 $0
# 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.
menuentry "Xen 3.5 / Ubuntu, kernel 2.6.31.4-1-xen" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,1)
search --no-floppy --fs-uuid --set 41102bda-f368-45b9-8066-fa971325b228
multiboot /xen-3.5-unstable.gz
module /vmlinuz-2.6.31.4-1-xen root=/dev/mapper/vg0-root ro quiet splash
module /initrd.img-2.6.31.4-1-xen
}
r...@uber-gamer:~#
=======================================================
After booting it eventually drops to the initramfs busybox shell and I
attempt to cat /proc/cmdline and it shows only "ro quiet splash" somehow
the root= got stripped out. I'm guessing grub-pc did this, since I'm
able to use the exact same kernel and initrd to boot without Xen (since
that works now too) and it didn't happen.
Some of the google searches on "grub2 xen" mention not having the
multiboot option completed yet. However, the dates were all the way back
in February.
Here's more stuff just in case you want it:
# lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10
# apt-cache policy grub-pc
grub-pc:
Installed: 1.97~beta4-1ubuntu3
Candidate: 1.97~beta4-1ubuntu3
Version table:
*** 1.97~beta4-1ubuntu3 0
500 http://mirrors.kernel.org karmic/main Packages
500 http://us.archive.ubuntu.com karmic/main Packages
100 /var/lib/dpkg/status
1.96+20080724-12ubuntu2 0
500 http://mirrors.kernel.org jaunty/main Packages
500 http://us.archive.ubuntu.com jaunty/main Packages
#
This bug isn't a big deal but I thought I'd mention it since you guys
are moving to grub-pc on amd64 systems.
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
--
grub-pc Xen dom0 support
https://bugs.launchpad.net/bugs/461678
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