You see a “Unable to install the psa-backup-manager” error while installing Plesk and it is because of the incomplete db4 packages needed for embedded database support for various applications. The complete error message looks like:
Determining the packages that need to be installed.
ERROR: Unable to install the “psa-backup-manager-9.x.x-cos5.buildxxxxxxx.00.i586″ package.
Not all packages were installed.
Please, contact product technical support.
Solution:
Check if the required db4 packages are installed by executing:
# rpm -qa | grep db4
It will list the db4 packages. If the db4-devel and db4-utils are missing from the above output, install the packages using yum
# yum install db4-utils
# yum install db4-devel
That’s it. You can start the Plesk
installation once again and it will install the psa-backup-manager successfully.