A TAPE ERROR OCCURRED: Could not find a tape to use

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This article is a part of the Troubleshooting collection.

Problem

In my case problem was in that amtape was unable to change tape.

The symptom is:

# amtape home-backup show
slot   1: time 20080916051516 label backup-01
slot   2: time 20080917041356 label backup-02
slot   2: time 20080917041356 label backup-02
slot   2: time 20080917041356 label backup-02
slot   2: time 20080917041356 label backup-02
....

amcheck was repeating tapes/slots too.

The worst thing is that amanda doesn't report any useful error if tape changer (chg-multi in my case) can't load a slot ( amtape home-backup slot 3 doesn't raise any alert in spite of error )

Solution

So, in my case I just corrected permissions in changer state-file parent directory (! First look at where your state-file resides, /var/amanda/changer-state may be specific to my setup)

# chown amandabackup /var/amanda
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