How to migrate nextcloud v22 to v23 new install after failed upgrade (TrueNAS Core)

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Nextcloud version (22.2.3): 22.1.1.2
Operating system and version (eg, Ubuntu 20.04): FreeBSD v12.3 (TrueNAS Core)
Apache or nginx version (eg, Apache 2.4.25): replace me
PHP version (eg, 7.4): replace me

The issue you are facing:
I run nextcloud as a plugin in a jail on a TrueNAS Core machine. As I’m quite a novice at this I just blindly followed update prompts as they were presented to me. So I pressed the update button on the web gui and the upgrade failed almost immediately with the error that you can’t jump between major upgrades and from that time I could not get into my Nextcloud install via the webgui.

I then followed some advice that said I should delete all the files and folders bar config & data, then extract a copy of 22.2.3 in the installation folder then run a manual upgrade … and here is where everything broke…

Ideally I would like to fix this but I do not know how to run the manual upgrade from the cli.

So I created a fresh install with version 23.0.0 and now I would like to migrate/import my old installation to the new one

Is this the first time you’ve seen this error? (Y/N): Y

Steps to replicate it: N/A

The output of your Nextcloud log in Admin > Logging:



The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php
$CONFIG = array (
  'apps_paths' => 
  array (
    0 => 
    array (
      'path' => '/usr/local/www/nextcloud/apps',
      'url' => '/apps',
      'writable' => true,
    ),
    1 => 
    array (
      'path' => '/usr/local/www/nextcloud/apps-pkg',
      'url' => '/apps-pkg',
      'writable' => true,
    ),
  ),
  'logfile' => '/var/log/nextcloud/nextcloud.log',
  'passwordsalt' => 'ARdPZbEWOmGcgB1reJB4V3kB0hJaNA',
  'secret' => 'Nk4hsM3gw3hxN3OxtNVtrPkVJ58OYGo/qpjhgVV55mBCLd+m',
  'trusted_domains' => 
  array (
    0 => 'localhost',
    1 => '10.254.254.20',
    2 => '10.254.254.190',
  ),
  'datadirectory' => '/usr/local/www/nextcloud/data',
  'dbtype' => 'mysql',
  'version' => '22.1.1.2',
  'overwrite.cli.url' => 'http://localhost',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'oc_ncadmin',
  'dbpassword' => 'xx',
  'installed' => true,
  'instanceid' => 'ocjpjfwurzu6',
  'mail_from_address' => 'xx',
  'mail_smtpmode' => 'smtp',
  'mail_sendmailmode' => 'smtp',
  'mail_domain' => 'xx',
  'mail_smtphost' => 'xx',
  'mail_smtpport' => '25',
  'maintenance' => false,
  'one-click-instance' => true,
  'one-click-instance.user-limit' => 100,
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'memcache.distributed' => '\\OC\\Memcache\\Redis',
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => 'localhost',
  ),
  'theme' => '',
  'loglevel' => 2,
  'mail_smtpauth' => 1,
  'mail_smtpname' => 'xx',
  'mail_smtppassword' => 'xx',
  'updater.secret' => '$xx',
);

The output of your Apache/nginx/system log in /var/log/____:

Jun 10 21:13:27 truenas nginx: 2021/06/10 21:13:27 [error] 1102#100212: accept4() failed (53: Software caused connection abort)
2021/06/24 14:12:50 [error] 1177#100366: send() failed (54: Connection reset by peer)
2021/06/25 17:57:31 [error] 1184#100209: send() failed (54: Connection reset by peer)
2021/09/04 22:13:43 [error] 1177#100260: send() failed (54: Connection reset by peer)
2021/09/18 11:53:42 [error] 1188#100329: send() failed (54: Connection reset by peer)
2022/01/04 10:21:59 [error] 1177#100902: send() failed (54: Connection reset by peer)
Jan  4 11:07:43 truenas nginx: 2022/01/04 11:07:43 [error] 1188#100217: accept4() failed (53: Software caused connection abort)