setup-storage sets wrong data in /etc/fstab

[Nicolas Courtel]

Michael Tautschnig a écrit :
> Hi Nicolas,
>
>   
>> Using FAI 3.4~beta6+experimental2 (also checked with experimental4
>> this morning) for squeeze and LVM, I have a funny fstab problem.
>>
>> setup-storage looks in /dev/<LVM volume> during installation to
>> build /etc/fstab:
>>
>> (CMD) readlink -f /dev/vg0/var 1> /tmp/mPvYMCBCMk 2> /tmp/TcD7OA66rq
>> Executing: readlink -f /dev/vg0/var
>> (STDOUT) /dev/dm-0
>> [...]
>> (CMD) readlink -f /dev/vg0/swap 1> /tmp/ls625DMAbK 2> /tmp/cAQYclvajY
>> Executing: readlink -f /dev/vg0/swap
>> (STDOUT) /dev/dm-1
>> [...]
>>
>> But when the host boots, the links are all mixed up, so it doesn't
>> work so well:
>>
>> # readlink /dev/vg0/var
>> ../dm-1
>> # readlink /dev/vg0/swap
>> ../dm-2
>> ...
>>
>> Shouldn't setup-storage use links in /dev/<volume> or /dev/mapper,
>> or even UUIDs, rather than /dev/dm-* , for /etc/fstab?
>>
>>     
>
> Thanks for the report and debugging effort. Hmm, so doing the readlink thing is
> not a good idea it seems, maybe we should change this, yes. But for the moment
> I'd suggest you just go for UUIDs, which we might want to make the default. You
> can achieve this by adding
>
> fstabkey:uuid
>
> to your disk/LVM config line, like
>
> disk_config lvm fstabkey:uuid
>
> Hope this helps,
> Michael
>
>   
I didn't know this option, it works much better this way :-) .

Thanks for the quick reply,

-- 
Nicolas
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