distupgrade for Debian and Ubuntu (i.e. Debian Squeeze to Debian Wheezy)
This used to work with previous Debian versions (e.g. Etch -> Lenny, Lenny -> Squeeze) but it doesn´t seem to be possible with Squeeze -> Wheezy.
The proposed way of "updating" is to make a backup and restore it on a new server. As we have 50+ servers this simply isn´t feasible: We cannnot get a new server and transfer multiple customer domains (some using external DNS) for each of those servers. This would cause long downtimes and problems with data being transferred that is changed on the old server (from website users).
It has been possible before so it should be possible again.
Larsen
shared this idea
This feature is already implemented in the upcoming Plesk 12.1 release. We encourage you to check the implementation in one of upcoming Plesk previews and let us know what you think. Everyone, thanks for your input and votes.
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Tozz
commented
I agree with this. Keeping your server up-to-date is important, but is indeed very time consuming using migration manager. With each server taking up to 12 hours to migrate with a couple dozen machines this is taking up valuable time.
apt-get dist-upgrade should just work.