Hi All:

I'm getting a printing error in an x2go instance that has worked for a long time, and am hoping to get some help. The error that shows up in the client side (windows) print window is:

CUPS-X2GO Local Printer /usr/lib/cups/backend/cups-x2go failed

The server where I'm running x2go ran out of disk space before a fix got done, and am wondering if that munged a key or set of files, as am guessing this is something to do with printing authentication (it's a single node x2go server and x2go printing).

I've tried re-installing the x2go printing (cups-x2go, x2goserver-printing). I've copied in a "cupsd.conf" from another working instance.

The /var/log/cups/error_log says:

W [11/Apr/2016:12:15:14 +0000] Please move "SystemGroup lpadmin" on line 3 of /etc/cups/cupsd.conf to the /etc/cups/cups-files.conf file; this will become an error in a future release. W [11/Apr/2016:12:15:14 +0000] No limit for Validate-Job defined in policy default and no suitable template found. W [11/Apr/2016:12:15:14 +0000] No limit for Cancel-Jobs defined in policy default - using Pause-Printer's policy. W [11/Apr/2016:12:15:14 +0000] No limit for Cancel-My-Jobs defined in policy default - using Send-Document's policy. W [11/Apr/2016:12:15:14 +0000] No limit for Close-Job defined in policy default - using Send-Document's policy. W [11/Apr/2016:12:15:14 +0000] No JobPrivateAccess defined in policy default - using defaults. W [11/Apr/2016:12:15:14 +0000] No JobPrivateValues defined in policy default - using defaults. W [11/Apr/2016:12:15:14 +0000] No SubscriptionPrivateAccess defined in policy default - using defaults. W [11/Apr/2016:12:15:14 +0000] No SubscriptionPrivateValues defined in policy default - using defaults. W [11/Apr/2016:12:15:14 +0000] No limit for Validate-Job defined in policy authenticated - using Print-Job's policy. W [11/Apr/2016:12:15:14 +0000] No limit for Cancel-Jobs defined in policy authenticated - using Pause-Printer's policy. W [11/Apr/2016:12:15:14 +0000] No limit for Cancel-My-Jobs defined in policy authenticated - using Send-Document's policy. W [11/Apr/2016:12:15:14 +0000] No limit for Close-Job defined in policy authenticated - using Send-Document's policy. W [11/Apr/2016:12:15:14 +0000] No JobPrivateAccess defined in policy authenticated - using defaults. W [11/Apr/2016:12:15:14 +0000] No JobPrivateValues defined in policy authenticated - using defaults. W [11/Apr/2016:12:15:14 +0000] No SubscriptionPrivateAccess defined in policy authenticated - using defaults. W [11/Apr/2016:12:15:14 +0000] No SubscriptionPrivateValues defined in policy authenticated - using defaults. E [11/Apr/2016:12:15:14 +0000] Unable to open listen socket for address [v1.::1]:631 - Address family not supported by protocol.

I can remove all the x2go packages and reinstall, but am unsure if that will address the problem (have not yet tried "Please move "SystemGroup lpadmin" on line 3 of /etc/cups/cupsd.conf to the /etc/cups/cups-files.conf file" because printing is working in other x2go instances). Any help appreciated...

Thanks!