Question Upgrade to Plesk 12.5 from Plesk 12.0.18 (CentOS 6.2)

[lein199]

I have a CentOS 6.2 server on 1and1, and i had one problem filesystem on this yesterday.

1and1 said me that it failed because I didn't upgrade Plesk on the last upgrade.

Until today, this server was working ok so I didn't upgrade it but 1and1 said me that I must to use the next line for upgrading to Plesk 12.5:

/usr/local/psa/admin/sbin/autoinstaller​

How do I keep safe for upgrading my server? is it dangerous if I upgrade it?
If i use the last sentence, will Plesk delete me all files on server?

I am compressing on .tar.gz the folder /var/ and I will do backups on Wordpress/Moodle's databases after this.

I have never done this upgrade so i'm scared.

Thank you for all.

 

[IgorG]

Detailed upgrade instruction you can find here - https://docs.plesk.com/en-US/12.5/deployment-guide/upgrading-plesk/inplace-plesk-upgrading.70337/

How do I keep safe for upgrading my server? is it dangerous if I upgrade it?
If i use the last sentence, will Plesk delete me all files on server?

Upgrade will not delete any your files on server. If you afraid to perform upgrade by yourself - ask Plesk Professional Service here - https://www.plesk.com/professional-services/