LVM snapshot not mountable

[Michael Monnerie]

This might be LVM specific, please apologize. For the first time I play 
around with LVM snapshots. I tried this:
lvcreate -s -n dbsnap -L 4G -v /dev/db/mysql
mount /dev/db/dbnap /mnt
but the mount fails, dmesg says:
[  598.440324] XFS: Filesystem dm-1 has duplicate UUID - can't mount

How could I mount it?

-- 
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc

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