'''NOTE: ''' The section for '''[https://wiki.amahi.org/index.php/Backup_and_Recovery_of_ownCloud Backup and Recovery of ownCloud/Nextcloud ]''' has been updated, please read carefully!
<more information shortly># Backup the ownCloud 8.2.1 (not guaranteed to work for anything earlier) instance to be upgrade, including the database.# Rename the old owncloud code directory in “/var/www/html/”, to say “xowncloud”.# Download and extract “Nextcloud 10.0.x” to a "Downloads" or other known location.# Rename the “nextcloud” binaries directory to “owncloud”.# Copy the downloaded binaries (owncloud) directory over to the "/var/www/html/" location.# Go to the copied "owncloud" directory under /var/www/html/, find PHP files; "version.php" and "index.php". '''Copy''' them to a known location,they will be required later after the upgrade.# In “owncloud” directory, in the “version.php” file.# Find the line containing "$OC_VersionCanBeUpgradedFrom".# Change the entry to: $OC_VersionCanBeUpgradedFrom = array(8,2,1); :DO NOT TRY THIS FOR VERSIONS PRIOR TO V8.2.1, IT MOST LIKELY WILL FAIL.# Drop and create the database instance.# Perform the usual recommended upgrade steps (from new backups): ## Restore the old "config.php". ## Restore the database. ## Set permissions and ownership to binaries directory structure.# Now do the usual upgrade process (i.e. via the browser GUI). The upgrade "should" complete successfully. ‘’’DO NOT’’’ login to Nextcloud yet.# Copy the original “index.php” and “version.php” files from the "known" location in to the “owncloud” directory, replacing the existing copies (this will overwrite the modified version.php).# After the copying of the PHP files, restart the Apache server or reboot.# Login to Nextcloud as the “administration user” and go to the “Admin” application. A scanning operation will begin in “Security & setup warnings” section. # After a period of time a warning message will appear in “red” stating that a “Code Integrity check...” failure has occurred.# On the red line for this failure, "click" on the "Rescan" link. This will force a new Nextcloud scan. After the new scan the code check failure should disappear.# Test the new instance. On the surface most things will upgrade correctly. Sharing and data configurations tested worked "mostly". Some applications may not upgrade correctly, usually disabling/enabling each application should fix the issue. If using “External Storage Support”, there maybe a double entry for the same items. Delete the second one.
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