F16>F17: F17 can't find root by uuid - which exists!

Rick Stevens ricks at alldigital.com
Mon Aug 27 17:40:32 UTC 2012


On 08/27/2012 10:35 AM, sean darcy uttered this comment:
> On 08/27/2012 11:03 AM, Heinz Diehl wrote:
>> On 27.08.2012, sean darcy wrote:
>>
>>> ata_id[273]: unable to open '$devnode'
>>> ata_id[275]: unable to open '$devnode'
>>> dracut unable to process initqueue
>>> dracut warning: /dev/disk/by-uuid/89af.... does not exist
>>
>> Looks like this bug:
>> https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=827997
>>
>> You could try to force-install a new fresh kernel (rpm -Uvh --force
>> kernel.rpm) and recreating grub.cfg afterwards. Seems to be a problem
>> with one of the Fedora kernels.
>>
>>
>
> Finally got it to boot. Used /dev/sda2 instead of UUID. BTW, using
> root=LABEL gives same devnode error.
>
> I'll try to force-install kernel.rpm. But which kernel? Does it matter?
> The most recent F17 kernel on koji is 3.5.2-3, which is that same kernel
> now installed!

IIRC, if you specify "LABEL=" and "UUID=", the device must match both
(it's a logical AND). You said that the UUID was correct, so odds are
the label isn't correct. Check via "e2label /dev/sda2".

My $0.02: choose either "LABEL=" or "UUID=", but not both. Or skip it
all and use the device. Chances are that the UUID will be more unique
so I'd use that.
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