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  • Get help with your FOG system.
    FOG Problems Hardware Compatibility Windows Problems Linux Problems Mac Problems General Problems
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    G

    Hello,

    I have updated FOG server to the latest stable version: 1.5.10.1903.
    FOG server is running on Ubuntu 24.04.4 LTS.

    The problem is that now FOG clients are returning error:

    Communication ERROR: Could not contact FOG server
    Communication ERROR: The remote server returned an error: (500) Internal Server Error.

    1.png

    When I have checked apache2/error.log I have folowing error:

    Wed Jul 22 09:45:28.388629 2026] [proxy_fcgi:error] [pid 676068] [client 10.0.0.107:54208] AH01071: Got error ‘PHP message: PHP Fatal error: Uncaught ValueError: min(): Argument #1 ($value) must contain at least one element in /var/www/fog/lib/fog/storagegroup.class.php:228\nStack trace:\n#0 /var/www/fog/lib/fog/storagegroup.class.php(228): min()\n#1 /var/www/fog/lib/client/snapinclient.class.php(160): StorageGroup->getMasterStorageNode()\n#2 /var/www/fog/lib/fog/fogpage.class.php(3306): SnapinClient->json()\n#3 /var/www/fog/lib/fog/fogpage.class.php(255): FOGPage->requestClientInfo()\n#4 /var/www/fog/lib/pages/dashboardpage.class.php(76): FOGPage->__construct()\n#5 /var/www/fog/lib/fog/loadglobals.class.php(65): DashboardPage->__construct()\n#6 /var/www/fog/lib/fog/loadglobals.class.php(79): LoadGlobals::_init()\n#7 /var/www/fog/commons/base.inc.php(38): LoadGlobals->__construct()\n#8 /var/www/fog/management/index.php(22): require(’…‘)\n#9 {main}\n thrown in /var/www/fog/lib/fog/storagegroup.class.php on line 228’

    From the logs I assume that there is a problem with StorageGroup.
    I have a few storage groups & storage nodes as per pictures below.
    st-gr.png

    st-nd.png

    Snapins Storage group on this FOG server are set to GR storage.

    snapin.png
    Is my setup wrong?
    Can you help me somehow?

  • Get the latest news on what's happening.
    Security Advisories
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    825 Posts
    A

    @Tom-Elliott I really appreciate that you are putting effort into providing more frequent releases, which makes it easier for everyone to deploy new security fixes in time. Keep up the good work!

  • View tutorials or talk about FOG in general.
    General Tutorials
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    19k Posts
    V
    UPDATE 07/17/2026

    After some experimentation and examining the fogftp.class.php file, I found that FOG calls ftp_rename to move files from the /image/dev/<mac_host> folder to the /image/<image_name> folder.

    Finally, it helped me to connect with a regular ftp client (WinSCP) and try to move the folders manually. This is how I found out that the problem was in the permissions set on the folders.

    So I found out that from my original version 1.5.10.10 to the current 1.5.10.1903 there was a change in the file

    /lib/reg-task/taskqueue.class.php

    in the private function _moveUpload() method it was previously

    ->chmod(0777, $dest) and now it is ->chmod(0775, $dest)

    That (maybe) could be the reason why it stopped working for me. Thanks to this post https://forums.fogproject.org/post/156271

    chown -R fog:users /volume1/images/ #set inheritance to the dev folder chmod g+s /volume1/images/dev/

    I connected to the NAS with ssh and fixed the permissions over the folders. Now it’s working fine again.

  • Report bugs, request features, or get the latest progress.
    General Feature Request Bug Reports
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    Tom ElliottT

    @Valer Thanks for the report and the writeup, that’s a good catch. You’re right about the cause. Debian 13 dropped the sysv-rc-conf package since it’s fully on systemd now, so the installer chokes trying to apt-get it. We never actually use that tool on a systemd system anyway, it only ever got called on the old non-systemd paths, so it was just dead weight on Trixie.

    I pushed a fix to working-1.6. It leaves the package off the list on Debian 13 and up, and it also strips it out of a cached .fogsettings so an in-place upgrade doesn’t drag it back in. Older Debian keeps installing it like before so nothing changes there.

    If you want to get moving before you pull the update, you can either grab the latest working-1.6 and rerun the installer, or just open /opt/fog/.fogsettings and delete sysv-rc-conf from the packages line, then run the installer again. Either one gets you past it.

    Let me know if you hit anything else on Trixie.

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