[olug] Ubuntu drive assignment

[Jordan Fox]

Interesting, I haven't done anything to fix the problem, but was going
to look at it this morning.  The problem seems to have fixed itself.
My main drive is now being mounted from /dev/sda instead of sdb.
After updating the fstab with UUIDs instead of drive letters Monday
and the OS came all the way up, I haven't touched it.  Monday night
after that fix, my main drive was still sdb, but right now it's sda.

Weird.  Must be all this new auto-magic auto-detect and auto-configure
stuff in Ubuntu.  I just hope that stuff doesn't have a bad day.  All
the automation is nice, when it works - which seems to be most of the
time.

Jordan

On Mon, Oct 11, 2010 at 10:17 PM, Dan Linder <dan at linder.org> wrote:
> I'll second the GRUB+UUID solution - it should hold regardless of BIOS
> re-ordering snafus...
>
> Dan
>
> On Mon, Oct 11, 2010 at 21:17, Sam Tetherow <tetherow at shwisp.net> wrote:
>
>> Post bootstrap you can assign drives using udev
>>
>> Pre bootstrap you can fiddle in bios
>>
>> grub remap drive order from bios as well.
>>
>> grub will also allow you to pass a uuid to the kernel for the root
>> partition.
>>
>> --
>> Sam Tetherow
>>
>>
>> On Mon, 2010-10-11 at 20:38 -0500, Jordan Fox wrote:
>> > Sorry for not finding the answer yet on my own, and possibly sending
>> > the email before I've done another couple hours of research...  I just
>> > updated from Xubuntu 10.04 to 10.10.  In the process, ubuntu is now
>> > detecting my main boot drive as /dev/sdb instead of /dev/sda... after
>> > updating my /etc/fstab file to use all UUIDs instead of drive letter
>> > assignments I can boot into the new kernel (I was able to boot into an
>> > old kernel which properly detects my drive letters - which made the
>> > problem easy to discover and fix with the UUIDs).  /dev/sda isn't
>> > assigned to any drive as far as I can tell (fdisk won't recognize it
>> > as a device).  At this point, it's not really an issue after fixing
>> > the above, but it is annoying.  Having used Ubuntu for the past
>> > several years, my command line fu isn't what it used to be when I ran
>> > Gentoo.  Plus, I don't know much about Upstart or Grub2.
>> >
>> > Anyone have any ideas.  I think I remember seeing a similar thread in
>> > olug a number of months back.
>> >
>> > Thanks,
>> > Jordan
>> >
>> >
>>
>>
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