Okay, I have a bit of a problem. Ages ago, I should have upgraded from SME Server 7.5.1 to SME Server v8.0, due to the former being depreciated.... but anxieties that Something Could Go Wrong gave me the screaming heebeejeebees, so I put it off till later. Now, here it is several years after that and I've still not done it. My email machine works fine, though... except recently when I went to the Mail sorting rules interface for one of my mail accounts, and go to click the Add New Rule button, the page takes ages trying to load, and then it gives me a Proxy Error. Since 7.5.1 is no longer supported, I figured this meant it was time to finally bite the bullet and install 8.0, since likely no one would be interested in helping me troubleshoot 7.5.1 anymore.
My problem is... some ages ago, I got misdirected off into installing some enhanced version of somethingorother in yum, something that called itself an "upgrade of" one of the existing elements of the system, because some element wasn't working right at the time (my hazy recollection was of either emails not going out, or not coming in, or some other email transitionary thing). It also turned out the thing I got confused into installing didn't solve the problem, probably had nothing at all to do with the problem, and that the problem wound up being solved by my doing one of the regular updates from the web interface later... but its been so long, I can't remember anything specific beyond that.
According to the page here... <<
http://wiki.contribs.org/SME_Server_8 >> ...I need to do the upgrade onto a clean machine, meaning one without contribs or other modifications added. Far as I can tell, the one thing I installed as an "upgrade" of something via yum made no functional difference at all to how my system worked... and I haven't made any OTHER changes under the hood... but it gives me a fresh feeling of
EEEEK!!!! Somethings gonna go wrong!!!So, how do I determine what I'd "upgraded" via yum, so I can revert it back to what was before? Or, depending on what it was... determine if it's something I can simply ignore (since updating to 8.0 would presumably wipe all the old executables from the older Centos and SME anyway) and so just a matter of changing something out in the templates folder?
Ideally, I just want to make sure all my emails, and all my settings involving what to do with those emails (i.e. send stuff with these headings and stuff to THAT subfolder in THAT mailbox when they arrive), get 100% transitioned over to the new system without any of them getting lost in the changeover. I don't really care about preserving the configs of any "upgraded," under-the-hood this or that doohillies from the previous, now-obsolete version of my server software. But, the accumulated number of emails is too large to do a backup-to-desktop that I could otherwise later restore from, so it looks like my only choice of action (short of imaging the whole dang drive to another drive) is to hope the update to 8.0 goes through without Major Whoopsies along the way.
So, where do I go from here? oO