Article ID: 116353, created on Jun 27, 2013, last review on Sep 19, 2015

  • Applies to:
  • Plesk 12.5 for Linux
  • Plesk 11.5 for Linux


Plesk upgrade fails with following message:

 Trying to backup MySQL database...
 ERROR while trying to backup MySQL database
 Check the error reason(see log file: /tmp/plesk_11.0.9_installation.log), fix and try again

Upgrade log file /tmp/plesk_11.0.9_installation.log contains:

=== Preparing upgrade
chown: changing ownership of `/storage/mysql.preupgrade.11.0.9-': Operation not permitted 


NFS server does not allow change of ownership on files, which causes Plesk pre-upgrade operations to fail.


Update file /etc/psa/psa.conf and change value of DUMP_D parameter to /var/lib/psa/dumps. After that, repeat upgrade attempt.

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