I have had 1394 and USB drives working very well for a while now under
Debian Sarge with kernel 2.6.7. My only gripe is with the changing
mount points or rather device nodes assigned to these devices. For
example, if I boot my machine with the firewire disk plugged in, it is
assigned /dev/sdb but if I unplug it and plug it in again it then
becomes /dev/sdc or some other thing. This is a pain because now the
entry in my fstab won't load the drive.

Is there any way that I can get the system to set this device up under
the same device node each time so that it is always /dev/sdb no matter
how many times I plug and unplug it?
Thanks,
Hish

hish wrote:

> I have had 1394 and USB drives working very well for a while now under
> Debian Sarge with kernel 2.6.7. My only gripe is with the changing
> mount points or rather device nodes assigned to these devices. For
> example, if I boot my machine with the firewire disk plugged in, it is
> assigned /dev/sdb but if I unplug it and plug it in again it then
> becomes /dev/sdc or some other thing. This is a pain because now the
> entry in my fstab won't load the drive.
>
> Is there any way that I can get the system to set this device up under
> the same device node each time so that it is always /dev/sdb no matter
> how many times I plug and unplug it?

Sure. Don't ever plug in any other peripheral that might monopolize this
device.

Alternative: write a shell script that figures out which device got the
mapping for the hardware, and creates a symlink with a specific name that
doesn't change.

--
Paul Lutus
http://www.arachnoid.com

hish wrote:
> Is there any way that I can get the system to set this device up under
> the same device node each time so that it is always /dev/sdb no matter
> how many times I plug and unplug it?

Yes, the solution is called "udev":
http://www.linuxjournal.com/article.php?sid=7316
http://www.kernel.org/pub/linux/util...tplug/udev-FAQ
http://webpages.charter.net/decibels...DEVPrimer.html
http://www.reactivated.net/udevrules.php

--
Markku Kolkka
markku.kolkka@iki.fi

begin hish@myself.com (hish) dedi ki:

> I have had 1394 and USB drives working very well for a while now under
> Debian Sarge with kernel 2.6.7. My only gripe is with the changing
> mount points or rather device nodes assigned to these devices. For
> example, if I boot my machine with the firewire disk plugged in, it is
> assigned /dev/sdb but if I unplug it and plug it in again it then
> becomes /dev/sdc or some other thing. This is a pain because now the
> entry in my fstab won't load the drive.

You can mount your USB volumes based on volume-label instead of device
name. E.g:

As root issue:
# e2label /dev/sdc1 USBPART1

and then in /etc/fstab:
LABEL=USBPART1 /mnt/myusb1 ext3 defaults 1 2

so the first partition on the USB drive will always mount as /mnt/myusb1
regardless of which device it is on.

> Is there any way that I can get the system to set this device up under
> the same device node each time so that it is always /dev/sdb no matter
> how many times I plug and unplug it?

Alternatively you can get your USB device recognized consistently, as
explained in other posts.

--
Abdullah | aramazan@ |
Ramazanoglu | myrealbox |
________________| D.0.T cöm |__