Unable to open web gui

  • Hi, I'm new at this. OMV web gui won't open anymore, it displays error listed below:


    Error #0:
    OMV\Exception: Failed to read file '/var/cache/openmediavault/cache.omv\controlpanel\login_js.json' (size=0). in /usr/share/php/openmediavault/json/file.inc:207
    Stack trace:
    #0 /usr/share/php/openmediavault/json/file.inc(223): OMV\Json\File->getContents()
    #1 /usr/share/php/openmediavault/controlpanel/controlpanelabstract.inc(173): OMV\Json\File->read()
    #2 /var/www/openmediavault/index.php(46): OMV\ControlPanel\ControlPanelAbstract->render()
    #3 {main}


    Can anyone help here?

    • Offizieller Beitrag

    Is this a reinstall? Looks like it could possibly be a cache issue on your browser. You can test if this is the issue by Opening a browser in Privacy/Incognito mode, and trying to log in to the webUI. If it works, then you know it's a cache issue. If it doesn't, then you have other issues.


    If logging in in privacy/incognito mode works... Close that browser


    On a regular browser/tab, Go to the OMV webUI login


    Hold Cntrl and click the Refresh button (this works for Chrome and I'm pretty sure Edge, not sure about Firefox).


    Then try to log in

  • Tried incognito mode still no working. The problem started when i clonezilla from one disk to another, the only problem was the other disk was a share & smb drive on omv. I rebooted on original disk with other drive detached and this problem occurred, all other functions still work, SSH, dockers, etc (except shared drive of course). Could it be because i unmount that drive first?

    • Offizieller Beitrag

    Sorry, because i didn't unmount that drive first?

    I don't think so..


    Do you have SSH or Console access?


    Try running omv-firstaid and clearing the web cache from there. Then try making sure your apt list is complete... after clearing the cache from omv-firstaid, and you're back at the prompt, omv-aptclean


    and let that run.


    Then refresh your browser as before and see if it works.

  • Hi,
    That worked, got me into webui, only for me to run into a whole heap of other issues, disk not available, tryied to clear missing disk but just errors, system log full of errors, unable to apply any changes. I think she might be broken. This would be a shame as it has alot of dockers set up and working so well.
    This happens everytime i apply change:


    Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; omv-mkconf fstab 2>&1' with exit code '1': Traceback (most recent call last): File "/usr/sbin/omv-mkconf", line 106, in <module> sys.exit(main()) File "/usr/sbin/omv-mkconf", line 101, in main rc = execute_script() File "/usr/sbin/omv-mkconf", line 61, in execute_script os.execv(path, [path] + __args.args) FileNotFoundError: [Errno 2] No such file or directory.


    Also SSH would allow root password anymore?

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