ok - I tried the command (su -c 'journalctl -u cups.service --since="None" --until="2016-09-27 18:17:05"' > troubleshoot-logs.txt) on my current system (Ubuntu 18.04.1). I think I ran into the same problem. The "su" command doesn't tell me who's password it's asking for - turns out it's the superuser password. On my systems there is no superuser password so that command (su) is doomed to fail regardless. Cups needs to be updated at least for Ubuntu. Typically Ubuntu configures the initial user in the sudoers file so someone at least can become the super user. The command to do that is "sudo". Also becoming the super user doesn't seem to be necessary. I executed "journalctl -u cups.service" and it worked fine. Lastly journalctl couldn't parse "None" or "none" as a time indicator.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1628314 Title: Cups trouble shooter asked me to run a command that doesn't work Status in cups package in Ubuntu: Incomplete Bug description: The Cups trouble shooter claimed it couldn't find log files saying it was possible the it wasn't running as an administrator (which was correct). It asked me to run su -c 'journalctl -u cups.service --since="None" --until="2016-09-27 18:17:05"' > troubleshoot-logs.txt which failed for 2 reasons 1. I don't know the cups.service password (so I ran the command as root) 2. the None specification for "--since" is not valid Also the cups logs showed that cups couldn't create /var/spool/cups/tmp/.hplip but didn't say what caused the failure (turns out it already existed - shouldn't be an error!) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: cups 2.1.3-4 ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19 Uname: Linux 4.4.0-38-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: Unity Date: Tue Sep 27 18:41:10 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2015-05-31 (485 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 0bda:57b5 Realtek Semiconductor Corp. Bus 001 Device 005: ID 03f0:0317 Hewlett-Packard LaserJet 1200 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. X551MA Papersize: letter ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-38-generic.efi.signed root=UUID=dadede94-9cd3-484a-963a-db3e27379a9b ro quiet splash vt.handoff=7 SourcePackage: cups UpgradeStatus: Upgraded to xenial on 2016-08-04 (54 days ago) dmi.bios.date: 08/12/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X551MA.512 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X551MA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX551MA.512:bd08/12/2014:svnASUSTeKCOMPUTERINC.:pnX551MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX551MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X551MA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1628314/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
