CUPS service won't start after upgrade in RHEL 7

Solution Verified - Updated -


  • After upgrading CUPS, a new entry, "SystemGroup=sys root" was added to /etc/cups/cups-files.conf, and CUPS is unable to start. After commenting the parameter in configuration file the CUPS service starts properly.

  • We have recently patched the server and during patching at the time of cleanup activity its showing below error.

    Cleanup    : 1:cups-client-1.6.3-35.el7.x86_64                                                                                                     212/332 
    Broadcast message from systemd-journald@server-1 (Sun 2020-11-08 00:34:07 PST):
        cupsd[31326]: Unable to read "/etc/cups/cups-files.conf" due to errors.

    After that server was rebooted, but the CUPS service was not able to start


  • Red Hat Enterprise Linux (RHEL 7
  • Common Unix Printing System (CUPS) 1.6.3

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