Please help. I copied the folder “data”, and the config folder,
installed a cloud, loaded the database, loaded the folder “data”
But when I try to enter I see this
ScreenShot
Update required
It is possible that your instance may contain many files and / or users. To ensure a smooth upgrade process, use the update via the command line (occ upgrade).
When I try to find information in Google, I’m sent to non-working pages
https://doc.owncloud.org/server/10.0/admin_manual/configuration/server/occ_command.html
for russia there is no data
Please input your English.
Если ты русский, помоги по-русски
It's very bad that there is no normal documentation.
If anyone has encountered the problem of updating from 9 to 10 versions, here is the solution to the problem
sudo -u www-data ./occ maintenance:mode --on
sudo -u www-data ./occ config:system:set mysql.utf8mb4 --type boolean --value="false"
sudo -u www-data ./occ upgrade
sudo -u www-data ./occ config:system:set mysql.utf8mb4 --type boolean --value="true"
sudo -u www-data ./occ db:convert-mysql-charset
sudo -u www-data ./occ maintenance:mode --off
@Roman_Anderson running ./occ upgrade on terminal/ssh was the correct thing to do - this is what the message in the browser told you 
From my point of view there is no need to convert your mysql database to mb4 in order to allow a successful upgrade. But it doesn't hurt either
