I just tried upgrading from 11.0.1 => 11.0.2 and something got borked to where it said that it didn't have write access to the 3rdparty directory even though it did have write permissions for the www-data user and user group. Luckily, I download the 11.0.2 version and then did a restore from a backup, to the updated version. Seems to work just fine. Anyone else have a similar story?
Beginning from owncloud - now to nextcloud - best bet is to backup everything, purge die directory, than go and make a bare install of the new version - than copy your config and data back into that
It has been smooth for me through the updater on 3 different Nextcloud servers. Just had to change permissions to the webroot before upgrading and reharden using a script.
When I was on owncloud I never had a smooth upgrade. Since moving to nextcloud it works flawlessly everyone though the webui. But yeah, back up everything just in case you need to roll back or anything like that.
All in all so far the automataic never worked - complaining about the "stats" folder which is by the webserver, "error" folder which is by the webserver, .... yada yadda jadda ... so for me the only successfull way so far was the manual "occ upgrade" path.
the lead dev did a talk on jupiter broadcasting about it. they were looking at big companies deployments and found they were horribly insecure. so they made a tool to scan your own next cloud instance.