Re: [BackupPC-users] OT: udev rule for persistent removable device naming

[Timothy J M. <tm...@ob...>]

Jim Kyle <ji...@ji...> 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!  :)

Tim Massey

 
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