Mailinglist Archive: opensuse (2859 mails)

["Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


The Tuesday 2007-05-01 at 13:35 +1200, John O'Gorman wrote:

> Thanks to those of you who made suggestions when I could not get 10.2 to
> recognise a CoolGear USB removable HDD.
> 
> It turned out the problem was with the USB hub inside the external case
> drawing too much current and lowering the voltage to marginal levels.
> It was drawing its current from the server USB socket despite the fact
> that the external case had its own power supplied from the wall AC
> socket.
> My hardware man cured the problem by connecting the +5v regulated supply
> from the power circuitry to the hub (via the key switch). Turns out the
> box was an earlier model - the manufacturer now supplies boxes with the
> same mod.


Curious.

I hinted at power, but I was still far from the mark...

> This prompts 2 questions though. Any advice would be gratefully
> accepted.
> 
> 1. Is it OK to just unplug the device without using umount?

Better not. The general answer is "no".


> To remove the disc, I have been doing the following:
> 
> 1. umount /dev/sdb1 (or whatever)
> 2. switch off the disktray
> 3. remove the disktray 
> 
> In fact there is a keylock. You cannot remove the disktray unless you
> unlock with the key.
> The question: Is step 1 necessary or unnecessarily cautious.

Check with the command "mount". If you see a "sync" option applied to the 
device (all used partitions) then it is safe - usually. If you don't see 
it, then it is certainly unsafe.

I always use "umount whatever" to be on the safe side. It's better to 
waste some seconds than spend a day repairing a badly damaged disk.


> Question 2
> 
> How can you reconfigure SuSE 9 to imitate the behaviour of 10.2 with
> regards to mount points (i.e. /media/disk instead
> of /media/verylonghardwarebasednamewith\spaces?

There was a trick to mount on a fixed mount point name. It was published 
on the SDB, and I did some investigating at the time that I wrote to the 
list - I used 9.1 or 9.3 - but I can't find that email right now on a 
quick search.

- -- 
Cheers,
       Carlos E. R.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)
Comment: Made with pgp4pine 1.76

iD8DBQFGNxgHtTMYHG2NR9URAtB7AJwPqHYk7SkK6mznm1ZGTLBDSe6AGwCgixdx
geS0fwEA+JbQZiUr8qxZaGs=
=SJyX
-----END PGP SIGNATURE-----

-- 
To unsubscribe, e-mail: opensuse+unsubscribe@xxxxxxxxxxxx
For additional commands, e-mail: opensuse+help@xxxxxxxxxxxx