we use those long names because our devices changes names between reboots (if someona has the idev rules to fix them, they are welcome...).
developer@w3:~$ sudo bconsole
1000 OK: w3-dir Version: 5.2.5 (26 January 2012)
Enter a period to cancel a command.
*label
Automatically selected Catalog: MyCatalog
Using Catalog "MyCatalog"
The defined Storage resources are:
1: File
2: Autochanger
Select Storage resource (1-2): 2
Enter autochanger drive[0]: 0
Enter new Volume name: mansual
Enter slot (0 or Enter for none): 2
Defined Pools:
1: Default
2: File
3: Scratch
4: Catalogo
5: Mensual
6: Semanal
7: Diario
Select the Pool (1-7): 5
Sending label command for Volume "mansual" Slot 2 ...
3999 Device "Autochanger" not found or could not be opened.
Label command failed for Volume mansual.
Do not forget to mount the drive!!!