On 27/03/07, James Fidell james@cloud9.co.uk wrote:

I have a server which may or may not have a USB storage device connected when it boots. It also attaches to a disk array with a number of logical disks using ISCSI.

When booted with the USB device present, that is attached to /dev/sdb and the ISCSI disks are attached to /dev/sdc up. If the USB device is not present, then the ISCSI disks are attached to /dev/sdb onwards.

Is there a way to force the USB device not to be attached at all, or to delay it until after the ISCSI disks have been attached so that I get a predictable assignment of device names to the ISCSI disks?

You can assign specific drive naming/lettering conventions using UDev rules.

http://www.linuxjournal.com/article/7316

http://www.google.co.uk/search?hl=en&q=udev+device+naming&meta=

Will.