file system mount
Les Mikesell
lesmikesell at gmail.com
Fri Nov 2 19:47:02 UTC 2007
David Zeuthen wrote:
>> How about giving a hint as to which _physical_ disk it is? Imagine you
>> had a couple of scsi controllers each with a bunch of disks, plus some
>> sata and USB volumes and you add one (which might currently have labels
>> that match other drives) and want to format it. Which one is it? Or a
>> drive in the system fails and isn't detected. How do you find which one
>> it was?
>
> You mean like showing "/ (/dev/sdb1)" instead of "/"? It's doable..
No - sdb1 tells me what order the OS detected it it. It says nothing
about the physical connection or even which controller is involved.
Does anyone actually use this system with a large number of disks that
sometimes need attention? If the drive that was sdb yesterday fails in
a way that keeps it from being detected, sdb will mean something else
after a reboot.
> Might make sense in some cases. FWIW, I'm (or alexl) is going to revisit
> most of this before F9 as part of the gio/gvfs hacking. Stay tuned!
>> How do you change the UUID's on md arrays? I often clone machines by
>> separating RAID1 drives and letting them sync to new partners. If those
>> separated drives ever find themselves back in the same machine, I
>> wouldn't want them to rebuild automatically.
>
> I'm failing to see why this question relevant to this discussion?
Same general rant about not being able to tell/control what is really
going on. I don't like the system to guess, especially when I know the
answer will likely be wrong.
> I'm simply just asking the Anaconda to a) use UUID instead of LABEL (if
> applicable; e.g. some FS's don't have UUID); and b) use some sane labels
> by default. The user is still free to edit /etc/fstab to use LABEL=
> instead of UUID= and/or relabel his drives or do whatever he wants.
And similarly, I'd like a way to peg these to physical
controller/cable/drive selects because the UUIDs and labels are all
going to be the same on disks that I've cloned with DD or letting
RAID1's rebuild. I know you can't on USB, but about everything else has
a controller/target/LUN concept to identify it.
--
Les Mikesell
lesmikesell at gmail.com
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