I have a Sun Fire X4100 server which I'm trying to turn into a Xen box.
Currently it's running Gentoo x86_64 with no problems.
I built and installed Xen 3.0.2 from the Gentoo ebuild, and made a dom0
kernel from Gentoo's package of the Xen kernel sources, version
2.6.16.26.
When I try to boot into Xen, Grub throws an error:
Error 24: Attempt to access block outside partition
When I google for that error, I only find references to corrupt
filesystems in a boot partition, but my boot partition fsck's fine, and
other kernels in the same filesystem load fine. To rule out the
possibility of a damaged xen.gz, I renamed the file (the real one, not
any of the symlinks) and reinstalled from scratch; same error. I can
also read the file (gzip -d, cat, cp) once the OS is up and running, so
I don't think I have data corruption issues.
So now I'm at a loss. I don't even know how I'd go about getting more
information, since it's not like you can run your boot loader under a
debugger... Has anybody else run into this? Any idea what I might be
doing wrong?
In case any of this matters, my disk is partitioned like so:
$ sudo /sbin/fdisk -l /dev/sda
Disk /dev/sda: 72.9 GB, 72999763968 bytes
255 heads, 63 sectors/track, 8875 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 5 40131 83 Linux
/dev/sda2 6 491 3903795 83 Linux
/dev/sda3 492 977 3903795 83 Linux
sda1 is formatted with ext3, sda2 and sda3 are both reiserfs.
...and here's my grub.conf (again, both non-Xen kernels work fine):
$ cat /boot/grub/grub.conf
timeout 10
default 2
fallback 1
title Gentoo
root (hd0,0)
kernel /vmlinux-2.6.17-amd64 root=/dev/sda3
title Gentoo64
root (hd0,0)
kernel /vmlinux-2.6.17-amd64-mrj64 root=/dev/sda2
title xen dom0
root (hd0,0)
kernel /xen.gz dom0_mem=262144
module /vmlinux-2.6.16.26-xen-xen0 root=/dev/sda2
The Xen portion of that config is mostly cribbed from a working setup on
my desktop.
Any clues, sugguestions, or requests for further info are welcome.
Thanks,
-Michael
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