topic Re: Changing device names in Operating System - HP-UX

Changing device names

Glenn Mitchell_4 — Fri, 13 Apr 2001 14:44:18 GMT

I need to change a tape drive device name from /dev/rmt/2m to /dev/rmt/1m. How do I do this?

Re: Changing device names

Steffi Jones_1 — Fri, 13 Apr 2001 15:00:13 GMT

Hello Glenn,

you can give devicefiles any names you want as long as you stay in the HPUX convention.

You delete the existing device file with the rm command and create a new one with the mknod command.

Make sure that you keep a copy of the old file in a different dir to be on the safe side.

Check the manpage for mknod for the complete syntax.

Steffi Jones

Re: Changing device names

Wieslaw Krajewski — Fri, 13 Apr 2001 15:02:10 GMT

Hi,

You can just create a link:

ln /dev/rmt/2m /dev/rmt/1m

and it works

But should remember, that 1 and 2 have their meaning.

Re: Changing device names

Rob Smith — Fri, 13 Apr 2001 15:02:58 GMT

Use the mknod command to duplicate the device characteristics and change the device name. This always works for me. Hope this helps.

Rob

Re: Changing device names

Vincenzo Restuccia — Fri, 13 Apr 2001 15:03:08 GMT

#rmsf -a /dev/rmt/2m
#mksf -C tape -I 1 /dev/rmt/1m

See man rmsf and mksf

Re: Changing device names

Jim Mulshine — Fri, 13 Apr 2001 15:09:58 GMT

The mv command works...
example (0m to 1m):
# cd /dev/rmt
# lssf 0m
stape card instance 0 SCSI target 0 SCSI LUN 0 at&t best density available at ad
dress 16/5.0.0 0m
# mv 0m 1m
# lssf 1m
stape card instance 0 SCSI target 0 SCSI LUN 0 at&t best density available at ad
dress 16/5.0.0 1m

You could also opt to keep the original device file name an create a link to it...
# cd /dev/rmt
# ln -s 0m 1m