tape permission
Hi,
i have on my server an LTO tape drive and i can use it with user root .
when i try to use tape drive whith another user i receive this message:
[myuser@myserver script]$ mt -f /dev/st0 rewind
/dev/st0: Permission denied
I have already add myuser to group tape with # usermod -G tape myuser
but i have the same problem
this is the st0 permission :
[myuser@myserver script]$ ls -al /dev/st0
crw-rw---- 1 root tape 9, 0 Sep 30 14:41 /dev/st0
what's wrong ?
Thanks in advance
Cesare
Responses
Red Hat
Guru
1517 points
Hi Cesare,
I don't have a tape drive at hand, but I believe you also need to run "newgrp tape" as "myuser" to switch to the required group in the login shell. Otherwise, your commands still run with your primary group. Example with user "test", whose primary group is "test" and who's also in the "tape" group:
$ touch file1 ; ll file1
-rw-rw-r--. 1 test test 0 Oct 22 12:00 file1
$ newgrp tape
$ touch file2 ; ll file2
-rw-r--r--. 1 test tape 0 Oct 22 12:00 file2
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