Mailinglist Archive: opensuse (2112 mails)

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Re: [opensuse] External USB hard disks swapping mount-points
  • From: "Amedee Van Gasse" <amedee@xxxxxxxxx>
  • Date: Thu, 7 Aug 2008 13:27:49 +0200 (CEST)
  • Message-id: <11800.>
On Thu, August 7, 2008 12:55, Neil wrote:
On 8/7/08, Martin Mielke <m_mlk@xxxxxxxxx> wrote:
Hi list,

some weeks ago I bought 2 external USB 2.0 hard disks to use them as
mass-storage for assorted data.

I created the ext3 filesystem on both and mounted them just fine under
/disk1 and /disk2.

This is how it looks like now (correct way):
/dev/sdb1 480719088 96188532 360111356 22% /disk1
/dev/sdc1 480719088 252211016 204088872 56% /disk2

Yesterday I had to reboot the system to apply some patches and found
those external hard disks wrongly mounted when the system came back to
/dev/sdb1 480719088 96188532 360111356 22% /disk2 <-- this
should be /disk1
/dev/sdc1 480719088 252211016 204088872 56% /disk1 <-- this
should be /disk2

My /etc/fstab has the following entries for them:
/dev/sdb1 /disk1 ext3 acl,user_xattr 0 0
/dev/sdc1 /disk2 ext3 acl,user_xattr 0 0

I rebooted the system 2 times more just to check this behavior and it
seems that /dev/sdb1 and /dev/sdc1 are "swapped" at boot time sometimes
for some reason still unclear to me... and of course, I don't swap the
USB cables :-P

Any idea why this happens??


Dunno for sure, but it might be solved by using disk-ID's instead of
On my brother's system (Ubuntu) we noticed USB disks changing sd*
names at boot depending on wether and where other USB devices were
present and the phase of the moon (:P).

What I want to say is: if you mount USB devices automatically then you
should use disk-ID's instead of sd* names.

just my 0,02€


In a related problem, when my external USB disk, or any random USB stick,
is plugged in, then I cannot boot, no valid boot device found.
Unplug all USB devices and it works like a charm.
I alread plugged all USB disks/sticks into an USB hub so I only have to
unplug one cable.


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