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19. March 2015

Owncloud: Share-Button for calendar is missing

Filed under: Server Administration — Tags: , , , — Christopher Kramer @ 16:04

Searching the share-Button for the calendar in your owncloud webinterface?

I was searching it and finally found out that adblock was removing it! “Fanboy’s Social Blocking List” includes a rule “###.icon-share”, which also removes Ownclouds-Share button.

So best, just disable Adblock for your owncloud server.

Nextcloud: Share button for files is missing

Update 2019-08-08: It seems Nextcloud has a similar issue. Here, the share-buttons for sharing files is missing. So again, the best solution is to disable any adblocker for nextcloud.

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6. March 2015

Owncloud: Upgrading to owncloud 8 fails (Integrity constraint violation in oc_filecache)

Filed under: Linux,PHP,Server Administration — Tags: , — Christopher Kramer @ 21:33

First, the upgrade to owncloud 8 in the web GUI failed. Then, I performed the upgrade in the console like this:

sudo -u www-data php /var/www/owncloud/occ upgrade

This gave an error like this (I don’t remember exactly):

An exception occurred while executing 'INSERT INTO "oc_filecache" ... Integrity constraint violation: key s_storage_path_hash is not unique
...
Upgrade failed

This owncloud is using a MySQL DB.

So what in the end solved the problem: First put Owncloud in maintainance mode:

sudo -u www-data php /var/www/owncloud/occ maintenance:mode --on

Then make sure no occ processes of old upgrade attempts are running. If there are, kill them. Then clear the oc_filecache using this MySQL command:

TRUNCATE oc_filecache;

Don’t worry, it will populate itself again during the upgrade. Then restart the upgrade:

sudo -u www-data php /var/www/owncloud/occ upgrade

This might take a lot of time! Better run this on a screen (see screen tutorial if you don’t know how) so it does not stop when your SSH connection breaks.