Vzdump exit error 5: found the real problem

[diaolin]

In many cases happens that, during backup, vzdump using snapshot exits with error 5...
and the the snapshot partition will not be umounted due to it-s busy state.

Locate (updatedb) is the guilty program!
It happens that if updatedb is running the mount point can be busy and despite
the filesystem cannot be umounted.

I've completly disabled updatedb removing mlocate

apt-get remove --purge mlocate

Diaolin