Mine went anything but smooth. I can't blame Scalix - as the bulk of my issues were related to the fact that I upgraded the OS at the same time.
I first upgraded my OS from Fedora 7 to Fedora 9 - then attempted to upgrade my scalix from 11.4 to 11.4.1. It seemed to me like the problems were focused around the fact that PosgreSQL was upgraded and the database formats are not compatible with each other. This (I am assuming) was the first cause of the failure - so I uninstalled the whole Scalix install, leaving my message store and cache files. I then did a complete reinstall, which again failed with the following error this time:
"CRITICAL Operation failed: Web apps config function configure_res failed: Failed to change password for "query admin" user
sxqueryadmin@scalix.mydomain.local. /opt/scalix/bin/ommodu reported the following error: ommodu : [OM 8040] The user can't be found, or has been deleted. "
By searching through the forums here, I found this post:
http://www.scalix.com/forums/viewtopic.php?t=7883&highlight=sxqueryadmin+install
which solved my problem.
Then all I had to do was reconfigure my spamassassin and clamav milters and several other things that lost their configs.
All told, it took me about 7-8 hours of work.
On a positive note, after reinstalling scalix, it picked up my existing info and ran with it. No lost emails, no lost users.
Pheww. I love scalix.
Richard