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Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?

rated 0 times [ 4] [ 0] / answers: 1 / hits: 5671 / 1 Year ago, tue, april 4, 2023, 11:14:34

I have a server running 12.04.4 32 bits Ubuntu server, and I wonder if there could be any unsolvable problem updating to 14.04.1 as the terminal suggest me (using do-release-upgrade) to do.

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shionnky

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answered 1 Year ago aslity · Accepted Answer

I just upgraded from 12.04

If you really want to be certain. Install 14.04 in a virtualbox and then install all the normal software you use to try it out first.

Here're the problems I had when upgrading...

One annoying problem is the "diskfilter writes are not supported" message, it can brick a remote server. But it may not affect you if you don't use LVM/raid. You'll need to plug in a monitor and keyboard and press enter to continue...
Diskfilter writes are not supported > What triggers this error?

All the files in /etc/apache2/sites-enabled
need to end in .conf now. And there're various apache 2.2 to 2.4 changes. Options now need a + sign, and changing allow/deny to require in all the configs.
http://httpd.apache.org/docs/2.4/upgrading.html

With any upgrade, manually installed programs/modules may need to be recompiled. And if you're using an old project that hasn't been updated for a while it may not compile. Best to test that first.