Access to GUI not possible (SSH-access working)

tsch · Apr 6th 2026

Suddenly I can't login to the GUI.

SSH-Login as root no problem and the NAS is working.

Any idea?

Thanks a lot for helping.

jgyprime · Apr 8th 2026

there might be several problems, each with a fix.

- cache problem in browser - clean cache for OMV IP

- incorrect admin password - reset the admin password with omv-firstaid

- incorrect port on OMV webui - change it from omv-firstaid to one that is not in use by other servers

- blocked port between NAS and your PC - check your firewall settings on the PC or NAS.

you should give us more details on the problem.

tsch · Apr 8th 2026

Quote from jgyprime

there might be several problems, each with a fix.
- cache problem in browser - clean cache for OMV IP
- incorrect admin password - reset the admin password with omv-firstaid
- incorrect port on OMV webui - change it from omv-firstaid to one that is not in use by other servers
- blocked port between NAS and your PC - check your firewall settings on the PC or NAS.

you should give us more details on the problem.

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Thanks for replying.
-No cache problem. I tried 3 different browser including incognito. No success.

-admin password is unchanged and if I try another password I geht an error. With the correct PW the Login repeats endlessly. I tried a reset with omv-firstaid wihtout success.

-OMV webui port is unchanged 80

-no blocked port between NAS and client

Any other suggestions?
If you need more information please go ahead.

ryecoaaron · Apr 8th 2026

What is the output of: sudo omv-salt deploy run nginx phpfpm

gderf · Apr 8th 2026

Another possibility not yet mentioned - is the rootfs full?

tsch · Apr 8th 2026

Here you go:

Code

debian:
----------
          ID: cleanup_monit_conf_dir
    Function: module.run
      Result: True
     Comment: file.find: ['/etc/monit/conf.d/openmediavault-collectd.conf', '/etc/monit/conf.d/openmediavault-engined.conf', '/etc/monit/conf.d/openmediavault-filesystem.conf', '/etc/monit/conf.d/openmediavault-mergerfs.conf', '/etc/monit/conf.d/openmediavault-nginx.conf', '/etc/monit/conf.d/openmediavault-phpfpm.conf', '/etc/monit/conf.d/openmediavault-remotemount.conf', '/etc/monit/conf.d/openmediavault-rrdcached.conf', '/etc/monit/conf.d/openmediavault-system.conf']
     Started: 17:10:27.976729
    Duration: 1.468 ms
     Changes:
              ----------
              file.find:
                  - /etc/monit/conf.d/openmediavault-collectd.conf
                  - /etc/monit/conf.d/openmediavault-engined.conf
                  - /etc/monit/conf.d/openmediavault-filesystem.conf
                  - /etc/monit/conf.d/openmediavault-mergerfs.conf
                  - /etc/monit/conf.d/openmediavault-nginx.conf
                  - /etc/monit/conf.d/openmediavault-phpfpm.conf
                  - /etc/monit/conf.d/openmediavault-remotemount.conf
                  - /etc/monit/conf.d/openmediavault-rrdcached.conf
                  - /etc/monit/conf.d/openmediavault-system.conf
----------
          ID: remove_monit_delay_file
    Function: file.absent
        Name: /etc/monit/monit_delay
      Result: True
     Comment: File /etc/monit/monit_delay is not present
     Started: 17:10:27.979611
    Duration: 0.539 ms
     Changes:
----------
          ID: divert_monit_delay_file
    Function: omv_dpkg.divert_add
        Name: /etc/monit/monit_delay
      Result: True
     Comment: Leaving 'local diversion of /etc/monit/monit_delay to /tmp/_etc_monit_monit_delay'
     Started: 17:10:27.980587
    Duration: 8.625 ms
     Changes:
----------
          ID: configure_default_monit
    Function: file.managed
        Name: /etc/default/monit
      Result: True
     Comment: File /etc/default/monit is in the correct state
     Started: 17:10:27.989357
    Duration: 37.354 ms
     Changes:
----------
          ID: divert_default_monit
    Function: omv_dpkg.divert_add
        Name: /etc/default/monit
      Result: True
     Comment: Leaving 'local diversion of /etc/default/monit to /tmp/_etc_default_monit'
     Started: 17:10:28.026829
    Duration: 8.301 ms
     Changes:
----------
          ID: configure_monit_monitrc
    Function: file.managed
        Name: /etc/monit/monitrc
      Result: True
     Comment: File /etc/monit/monitrc is in the correct state
     Started: 17:10:28.035272
    Duration: 99.57 ms
     Changes:
----------
          ID: divert_monit_monitrc
    Function: omv_dpkg.divert_add
        Name: /etc/monit/monitrc
      Result: True
     Comment: Leaving 'local diversion of /etc/monit/monitrc to /tmp/_etc_monit_monitrc'
     Started: 17:10:28.134962
    Duration: 8.344 ms
     Changes:
----------
          ID: configure_monit_collectd_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-collectd.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-collectd.conf updated
     Started: 17:10:28.143485
    Duration: 102.533 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: configure_monit_filesystem_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-filesystem.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-filesystem.conf updated
     Started: 17:10:28.246136
    Duration: 98.967 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: configure_monit_mergerfs_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-mergerfs.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-mergerfs.conf updated
     Started: 17:10:28.345211
    Duration: 99.953 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: configure_monit_nginx_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-nginx.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-nginx.conf updated
     Started: 17:10:28.445285
    Duration: 100.172 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: configure_monit_omv-engined_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-engined.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-engined.conf updated
     Started: 17:10:28.545581
    Duration: 96.836 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644

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tsch · Apr 8th 2026

And part two:

Code

----------
          ID: configure_monit_php-fpm_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-phpfpm.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-phpfpm.conf updated
     Started: 17:10:28.642535
    Duration: 107.556 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: configure_monit_remotemount_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-remotemount.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-remotemount.conf updated
     Started: 17:10:28.750197
    Duration: 97.909 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: configure_monit_rrdcached_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-rrdcached.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-rrdcached.conf updated
     Started: 17:10:28.848212
    Duration: 96.928 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: configure_monit_system_service
    Function: file.managed
        Name: /etc/monit/conf.d/openmediavault-system.conf
      Result: True
     Comment: File /etc/monit/conf.d/openmediavault-system.conf updated
     Started: 17:10:28.945246
    Duration: 103.888 ms
     Changes:
              ----------
              diff:
                  New file
              mode:
                  0644
----------
          ID: test_monit_config
    Function: cmd.run
        Name: monit -t
      Result: True
     Comment: Command "monit -t" run
     Started: 17:10:29.049796
    Duration: 8.527 ms
     Changes:
              ----------
              pid:
                  5778
              retcode:
                  0
              stderr:
              stdout:
                  Control file syntax OK
----------
          ID: reload_monit_service
    Function: service.running
        Name: monit
      Result: True
     Comment: Service reloaded
     Started: 17:10:29.807796
    Duration: 56.273 ms
     Changes:
              ----------
              monit:
                  True
----------
          ID: configure_phpfpm_webgui
    Function: file.managed
        Name: /etc/php/8.2/fpm/pool.d/openmediavault-webgui.conf
      Result: True
     Comment: File /etc/php/8.2/fpm/pool.d/openmediavault-webgui.conf is in the correct state
     Started: 17:10:29.864201
    Duration: 44.619 ms
     Changes:
----------
          ID: test_phpfpm_service_config
    Function: cmd.run
        Name: php-fpm8.2 --test
      Result: True
     Comment: Command "php-fpm8.2 --test" run
     Started: 17:10:29.908932
    Duration: 41.122 ms
     Changes:
              ----------
              pid:
                  5802
              retcode:
                  0
              stderr:
                  [08-Apr-2026 17:10:29] NOTICE: configuration file /etc/php/8.2/fpm/php-fpm.conf test is successful
              stdout:
----------
          ID: restart_phpfpm_service
    Function: service.running
        Name: php8.2-fpm
      Result: True
     Comment: The service php8.2-fpm is already running
     Started: 17:10:29.950531
    Duration: 21.582 ms
     Changes:
----------
          ID: monitor_phpfpm_service
    Function: module.run
      Result: True
     Comment: monit.monitor: True
     Started: 17:10:29.972574
    Duration: 7.329 ms
     Changes:
              ----------
              monit.monitor:
                  True
----------
          ID: configure_nginx_site_webgui
    Function: file.managed
        Name: /etc/nginx/sites-available/openmediavault-webgui
      Result: True
     Comment: File /etc/nginx/sites-available/openmediavault-webgui is in the correct state
     Started: 17:10:29.980035
    Duration: 111.03 ms
     Changes:
----------
          ID: configure_nginx_security
    Function: file.managed
        Name: /etc/nginx/openmediavault-webgui.d/security.conf
      Result: True
     Comment: File /etc/nginx/openmediavault-webgui.d/security.conf is in the correct state
     Started: 17:10:30.091178
    Duration: 104.319 ms
     Changes:
----------
          ID: execute_nginx_ensite
    Function: cmd.run
        Name: nginx_ensite openmediavault-webgui
      Result: True
     Comment: Command "nginx_ensite openmediavault-webgui" run
     Started: 17:10:30.195610
    Duration: 3.973 ms
     Changes:
              ----------
              pid:
                  5813
              retcode:
                  0
              stderr:
              stdout:
                  Site configuration file 'openmediavault-webgui' is already enabled.
----------
          ID: test_nginx_service_config
    Function: cmd.run
        Name: nginx -t
      Result: True
     Comment: Command "nginx -t" run
     Started: 17:10:30.199701
    Duration: 5.842 ms
     Changes:
              ----------
              pid:
                  5814
              retcode:
                  0
              stderr:
                  nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
                  nginx: configuration file /etc/nginx/nginx.conf test is successful
              stdout:
----------
          ID: restart_nginx_service
    Function: service.running
        Name: nginx
      Result: True
     Comment: The service nginx is already running
     Started: 17:10:30.206175
    Duration: 20.074 ms
     Changes:
----------
          ID: monitor_nginx_service
    Function: module.run
      Result: True
     Comment: monit.monitor: True
     Started: 17:10:30.226635
    Duration: 7.13 ms
     Changes:
              ----------
              monit.monitor:
                  True

Summary for debian
-------------
Succeeded: 28 (changed=17)
Failed:     0
-------------
Total states run:     28
Total run time:    1.501 s

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tsch · Apr 8th 2026

Quote from gderf

Another possibility not yet mentioned - is the rootfs full?

How can I check and solve that?

ryecoaaron · Apr 8th 2026

is the web interface working now? Did you check on the root filesystem use as gderf suggested?

ryecoaaron · Apr 8th 2026

Quote from tsch

How can I check and solve that?

df -h /

Thread

[How-To] Fix full OS filesystem - GUI login loop

Symptoms

When you try to login to the GUI of OMV you are not being logged in, but the login page shows up again

Check, if a full root filesystem is the problem
ssh into your server (check the new user guide on how to ssh into your server) and run following command
df df will show you the usage of each filesystem
the output of df will look like this:
(Code, 19 lines)

The filesystem dev/sda1 which is mounted on "/" is the OS filesystem. The use of that filesystem is 100% --> the OS filesystem is full.

…

macom

Jul 23rd 2020

tsch · Apr 8th 2026

df -h / shows:

Code

Dateisystem    Größe Benutzt Verf. Verw% Eingehängt auf
/dev/sdf1        58G     58G     0  100% /

ryecoaaron · Apr 8th 2026

it is full. Follow the guide I linked to.

tsch · Apr 8th 2026

And du -xhd1:

Code

88K     ./root
4,0K    ./export
4,0K    ./opt
16K     ./lost+found
4,0K    ./home
218M    ./boot
6,6M    ./etc
55G     ./srv
4,0K    ./mnt
8,0K    ./media
1,9G    ./usr
1,3G    ./var
58G

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ryecoaaron · Apr 8th 2026

Looks like you likely had an rsync run when one of your data drives was not mounted. The guide tells you how go further into subdirectories. /srv is your next step.

ryecoaaron · Apr 8th 2026

votdev, maybe it would be worth making /srv a tiny partition and filesystem. Then, when users filled it, they wouldn't break the web interface.

tsch · Apr 8th 2026

Quote from ryecoaaron

Looks like you likely had an rsync run when one of your data drives was not mounted. The guide tells you how go further into subdirectories. /srv is your next step.

Yes, this could be the case. I think SnapRAID has a problem but I don't want to take any risk.

Maybe the safest solution would be to backup the data to another NAS and then do a fresh install with the newest OMV version.

ryecoaaron · Apr 8th 2026

Quote from tsch

I think SnapRAID has a problem but I don't want to take any risk.

snapraid wouldn't cause this.

Quote from tsch

Maybe the safest solution would be to backup the data to another NAS and then do a fresh install with the newest OMV version.

I don't see any reason to reinstall. You just need to delete the data filling /srv.

tsch · Apr 8th 2026

Could mergerfs cause this problem and is ist safe to delete all data in /srv ?

gderf · Apr 8th 2026

Quote from tsch

..........is it safe to delete all data in /srv ?

DO NOT DO THIS.

ryecoaaron · Apr 8th 2026

Quote from tsch

Could mergerfs cause this problem

Only if you added a branch of /srv.

Quote from tsch

is ist safe to delete all data in /srv ?

NEVER

Just post the output of: du -d1 -x -h /srv/ | sort -h

Participate now!