Install of Ubuntu 8.10 server unbootable (solved)
markir at paradise.net.nz
Fri Dec 26 23:07:17 UTC 2008
> Attempting software raid again, unfortunately no joy at all - firmly
> refuses to boot. I think I am running into a variant of these initramfs
> However none of the work-arounds suggested there work (sleep in
> initramfs-tools/init and adding break=mount),
Finally figured this out. I had run into *two* bugs that were working
together very effectively to confuse me!
1/ dmraid enenabled in the initramfs.
This appears to be the default... despite the fact I choose to have it
*disabled whilst installing* (hmm... I think that's a new bug to raise).
With this card I need to define at least 1 fake array to boot off in the
BIOS, and with dmraid enabled, it used this, stealing 2 of my disks from
the md arrays, thereby breaking them...
The solution I used was to boot from the cd into "rescue broken system"
and remove dmraid (I'd guess it can be done more elegantly... but I'm
happy to remove the guy):
$ sudo aptitude remove dmraid
2/ md arrays not assembled by the time system tries to use them
This is the situation covered in the bugs mentioned previously, I worked
around this by using one of the suggestions mentioned therein:
$ sudo -i
# cd /usr/share/initramfs-tools/scripts/init-premount
# echo "/sbin/udevadm settle --timeout=10" >> udev
# update-initramfs -k all -u
So now we boot at last. I'll go and raise a bug about 1/ (unless I find
it already in the bug database).
Finally I've made such a mess of this installation with all the things
I've tried, I'll redo it again to have a clean initial setup, plus I'd
like to tweak the chunksize with the md arrays (didn't see any way to do
this from the installer - might have to use the rescue cd 1st...).
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