How to change SNAP_DATA

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The Basics

  • Nextcloud Server version (e.g., 29.x.x):
    • 32.0.9snap1
  • Operating system and version (e.g., Ubuntu 24.04):
    • Debian 13
  • Web server and version (e.g, Apache 2.4.25):
    • snap latest/stable
  • Reverse proxy and version _(e.g. nginx 1.27.2)
    • snap latest/stable
  • PHP version (e.g, 8.3):
    • snap latest/stable
  • Is this the first time you’ve seen this error? (Yes / No):
    • yed
  • When did this problem seem to first start?
    • before using nextcloud at all
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • snap
  • Are you using CloudfIare, mod_security, or similar? (Yes / No)
    • no

Summary of the issue you are facing:

In the README for nextcloud-snap it says data will be at `/var/snap/nextcloud/current`.

I failed to figure out how to change the SNAP_DATA environment variable to change the nextcloud’s snap system data storage location. This is NOT the nextcloud data location, which is straightforward to configure.

I need the mysql and other system data to be elsewhere because my /var gets erased at reboot and snapd/snapctl doesn’t seem to offer a way to configure this.

Steps to replicate it (hint: details matter!):

Log entries

Nextcloud

Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.

PASTE HERE

Web Browser

If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.

PASTE

Web server / Reverse Proxy

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

PASTE HERE

Configuration

Nextcloud

The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):

PASTE HERE

Apps

The output of occ app:list (if possible).

Tips for increasing the likelihood of a response

  • Use the preformatted text formatting option in the editor for all log entries and configuration output.
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    • If possible, also include key error output in text form so it can be searched for.
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Hey @iuri1, welcome to the Nextcloud community and thanks for supporting Nextcloud snap :handshake:

Sorry to hear you are having issues with your Nextcloud snap installation. If you’ve come this far, you’re on the right track! There is a good chance someone in the community has had a similar issue and knows how to resolve it.

Below are some links to how-to’s answering frequently asked questions and may help you help yourself;

pay special attention to:

I need the mysql and other system data to be elsewhere because my /var gets erased at reboot and snapd/snapctl doesn’t seem to offer a way to configure this

simple answer, nope snapd/snapctl will not offer this see Data locations - Snap documentation and see Snap Confinement

system data to be elsewhere because my /var gets erased at reboot

this is obviously your issue and to my knowledge /var is in no way relevant for the snap! please be absolutely clear about this.