On 04/04/12 07:48, Timothy J Massey wrote:
> Jim Kyle <[email protected]> wrote on 04/03/2012 05:21:29 PM:
>
> > On Tuesday, April 3, 2012, at 3:49:12 PM, Timothy J Massey wrote:
> >
> > > And because sometimes the drive that I insert will be perfectly
blank (a
> > > new drive), I can't use something like a drive label: it might not have
> > > one!
> >
> > Don't you have to partition and format the new drive before it can be
used?
>
> Sure, and that's what my script does.
>
> > If you do, you could write a "standard" disk label to it at that
time, and
> > then use that standard label in the udev rule or even to mount the
drive if
> > your version of fstab allows drives to be specified by label.
>
> And how exactly does the script know what device name that drive will
use *before* I put that "standard" label on it? I've already shown that
the device name the drive gets is quasi-random (race condition), and if
the script guesses wrong I wipe out a drive in my RAID array! :)
>
> If I could get Seagate et. al. to put my "standard" disk label on the
drive from the factory, I'd be golden. But until they do, I need to make
sure that the blank drive *before* initialization shows up in the right
place. And if I make that work consistently, then I don't *need* the
label! :)
Can't you see that the disk is blank (ie, has no partitions at all) and
therefore create the partitions + label/etc... That solves the new,
unknown drives problem.
For existing known drives, well, you have already labelled them, so you
know how to handle that now :)
In my similar case, I used the UUID from the drive, but then I had a
limited set of drives to deal with, and manual intervention to add the
new drive UUID (and partition/format the drive, and drop a empty 'flag'
file into the partition) was suitable.
Regards,
Adam
--
Adam Goryachev
Website Managers
www.websitemanagers.com.au
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