Manuel Wolfshant wrote:
Charlie Brady wrote:
I don't think it is a bad idea. I just think that sometimes there are some problems, or RedHat is not prepared to say that it will work. CentOS 3 -> 4 worked for me, using 'upgradeany' option to anaconda.
two days ago I've done 3.5 -> 5.2. via anaconda (upgradeany). no real problems except lack of X drivers after install.
The main problem I see is that sometimes packages get replaced by others.
For example. 2.1 contained wu-imap server. I think from 3 on (and certainly in 4, I've not actually installed 3 anywhere), wu-imap was dropped and now we can choose between cyrus imap and dovecot.
Similarly, wu-ftpd was dropped at some point.
When these package substitutions are made, there is no chance at all of the old configuration being translated into the new.
And then there's postgresql. One has to backup one's data before upgrading major postgresql releases and then restore into the new.