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xen-users
Re: [Xen-users] Troubles converting a pv host from dom0-hosted kernel to
Hi Guillaume Rousse,
First issue: I found than it was mandatory to use root=/dev/xvda1 in
order to mount root device when booting, despite the partition being
exported as sda1 according to domU configuration. Is this normal ?
As far as I know, this depends on your DomU-Kernel. Did you try the
xen.org-2.6.18.8?
Second issue, the boot stop at root partition mount time, trying to
force fsck:
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -a /dev/sda1
fsck.ext3: No such file or directory while trying to open /dev/sda1
/dev/sda1:
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
This happens whatever device I use for root partition in domU /etc/fstab
(/dev/sda1 or /dev/xdva1). However, I can perfectly mount
/dev/vg0/sexonthebeach as an ext3 partition in domU. Morevoer, the
emergency shell has expected content monted under / in both case...
Try to boot your initramfs with init=/bin/bash and play around to find
the right device-name (if any) f.e.:
mkdir /tmp/testme/
mount /dev/sda1 /tmp/testme/
mount /dev/xvda1 /tmp/testme/
..
Last question, loosely related to this problem: is there a way to easily
convert a partition-based host to a disk-based host
(phy:/dev/vg0/foo,sda1 -> phy:/dev/vg0/foo,sda) ?
Maybe you find this useful:
http://wiki.z-technologies.de/doku.php?id=partitiontabelle_nachtraeglich_erstellen
Bye,
Fabian
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