Problems with 12.10, 13.04, 13.10 server installs
Nicholas Skaggs
nicholas.skaggs at canonical.com
Thu Jul 25 19:04:20 UTC 2013
On 07/25/2013 12:54 PM, Patrick Goetz wrote:
> Hi -
>
> I'm bringing this issue to the attention of this list in the hopes of
> finding out where it is most appropriately addressed.
>
> I've recently done a number of server installs using mostly the 13.10
> 64-bit pre-release ISO, but also testing the problem I'm about to
> mention using 12.10 and 13.04.
>
> My current server build strategy, which I think is becoming fairly
> common, is to use 2 SSDs in a software RAID 1 for OS/swap and the
> either hardware RAID or another software RAID using traditional large
> disks for data. The problem seems to be with server hardware which
> includes a BIOS fakeraid (in particular when fakeraid is turned off --
> fakeraid on doesn't seem to work, either, with exactly the same
> symptoms). The symptoms are the OS installs, grub seems to
> successfully install on /dev/md0 or /dev/md127 (whichever md device
> exists in /dev at the time of the install), but then the system won't
> boot. In the latest case, I can't even get to a grub rescue prompt -
> the screen just hangs with a blinking dash. When I do get a grub
> rescue prompt (previous attempts on other hardware), it doesn't do
> anything; i.e the grub commands don't work.
>
> The reason I suspect the fakeraid HBA is that recently I installed 2
> superMicro servers, one from 2011 with no fakeraid, a more recent one
> which does include fakeraid. 13.10 installed with no problems on the
> older machine, but won't boot on the newer one as described above. In
> another case I had almost the same problem with a Dell server which
> similarly came with an HBA with fakeraid. The Dell server predates
> UEFI, so I'm ruling this out as a source of the problem.
>
> The problem is subsequently resolved using the boot-repair package
> from ppa:yannubuntu; i.e. I boot 13.04 live, install and run
> boot-repair, and subsequently all is well.
>
> My question is, why isn't the installer getting the grub install right
> in the first place?
>
> I tried taking this issue to the #ubuntu-server IRC, but that seems to
> be a wasteland of people who are at best extremely inexperienced
> asking questions about how to use bash and stuff like that.
>
> Since the problem also occurs with the 12.10 and 13.04 server ISO's,
> I'm not sure that logging a bug on launchpad is the right way to go --
> the problem is not 13.10 specific. My next step is to make a note of
> all the grub configuration information after the initial installation
> and then compare it to the modifications made by boot-repair (which is
> a superb piece of work, btw).
>
> Any thoughts on a better forum to take this issue to?
>
Reporting a bug for this is the way to go, and you can go a long way if
your able to follow this guide for debugging a bit as to what's going on
in your setup.
https://wiki.ubuntu.com/DebuggingUbiquity
I'm also curious if the alternate installer causes you similar issues or
not.
On the bug filing thing, yes please file and if it affects 12.04-13.10,
well we can mark it as such and apply a fix to each ;-)
Cheers,
Nicholas
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