# Upgrade impossible

**URL:** <https://help.nextcloud.com/t/upgrade-impossible/118031>\
**Category:** ℹ️ Support\
**Created:** [June 9, 2021, 5:04am UTC](https://help.nextcloud.com/t/upgrade-impossible/118031 "2021-06-09T05:04:12Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Zuthos](https://help.nextcloud.com/letter_avatar/zuthos/32/5_5575768a8748004e209b776fc1b2916d.png) [@Zuthos](https://help.nextcloud.com/u/Zuthos)\
**Post date:** [June 9, 2021, 5:04am UTC](https://help.nextcloud.com/t/upgrade-impossible/118031/1 "2021-06-09T05:04:12Z")

</div>

Hello,

I can’t upgrade Nextcloud. I use the updater but it freeze at the backup step or “Verifying integrity” step

Nextcloud version _(eg, 20.0.5)_: 19.0.12 to 20.0.10  
Operating system and version _(eg, Ubuntu 20.04)_: Debian 4.9.2-10+deb8u1 but, it’s a virtual serveur  
Apache or nginx version _(eg, Apache 2.4.25)_: I do’nt have this information  
PHP version _(eg, 7.4)_: 7.4

The issue you are facing:

Is this the first time you’ve seen this error? _(Y/N)_: N  
I tried several times

The output of your Nextcloud log in **Admin \> Logging** :

```auto
I don't find it

```

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

```auto
<?php
$CONFIG = array (
  'htaccess.RewriteBase' => '/',
  'mail_smtpmode' => 'sendmail',
  'mail_sendmailmode' => 'pipe',
  'instanceid' => ' ________',
  'passwordsalt' => ' _______',
  'secret' => ' ________',
  'trusted_domains' => 
  array (
    0 => ' ______',
  ),
  'datadirectory' => '/ _______',
  'dbtype' => 'mysql',
  'version' => '19.0.12.0',
  'overwrite.cli.url' => ' _______',
  'dbname' => ' ______',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => ' ________',
  'dbpassword' => ' ______',
  'installed' => true,
  'maintenance' => false,
  'updater.secret' => ' ___________ C',
  'theme' => '',
  'loglevel' => 2,
);

```

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

```auto
PASTE HERE

```

---

<div class="post-metadata">

**Author:** ![gas85](https://help.nextcloud.com/user_avatar/help.nextcloud.com/gas85/32/7772_2.png) [@gas85](https://help.nextcloud.com/u/gas85)\
**Post date:** [June 9, 2021, 6:55am UTC](https://help.nextcloud.com/t/upgrade-impossible/118031/2 "2021-06-09T06:55:58Z")

</div>

Hi, maybe you can check this tread [Update Fails: 19.0.6 -\> 20.0.3 (Verifying Integrity)](https://help.nextcloud.com/t/update-fails-19-0-6-20-0-3-verifying-integrity/101174)

---

<div class="post-metadata">

**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\
**Post date:** [December 13, 2024, 9:52am UTC](https://help.nextcloud.com/t/upgrade-impossible/118031/3 "2024-12-13T09:52:14Z")

</div>



---

<div class="post-metadata">

**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\
**Post date:** [December 13, 2024, 9:52am UTC](https://help.nextcloud.com/t/upgrade-impossible/118031/4 "2024-12-13T09:52:16Z")

</div>