[Bug 1754401] Re: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied)
** Changed in: xorg-server Status: Incomplete => Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754401 Title: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1754401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1754401] Re: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied)
Launchpad has imported 2 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=105508. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2018-03-14T15:04:03+00:00 Simon Déziel wrote: Created attachment 138109 /var/lib/gdm3/.local/share/xorg/Xorg.0.log Mounting /proc with hidepid=2,gid=sudo prevents X from starting properly. I originally reported the issue to Ubuntu in [1]. I'm using those mount options for added security/privacy. On older releases this used to work fine. 1: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1754401 Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1754401/comments/5 On 2018-06-13T19:48:13+00:00 Ajax-a wrote: Booting with hidepid=2 on a Fedora 28 machine, X starts with no problem. Presumably some other part of Ubuntu's setup is getting confused by this. It would be helpful if you could strace X startup to see why it doesn't think it can find the console. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1754401/comments/7 ** Changed in: xorg-server Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754401 Title: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1754401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1754401] Re: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied)
** Changed in: xorg-server Status: Unknown => Confirmed ** Changed in: xorg-server Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754401 Title: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1754401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1754401] Re: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied)
I added a link to the upstream bug, thanks for the guidance Daniel. ** Bug watch added: freedesktop.org Bugzilla #105508 https://bugs.freedesktop.org/show_bug.cgi?id=105508 ** Also affects: xorg-server via https://bugs.freedesktop.org/show_bug.cgi?id=105508 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754401 Title: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1754401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1754401] Re: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied)
Thanks for the clarification. Sounds like the next step should be to tell the Xorg developers about the bug. Please report it here: https://bugs.freedesktop.org/enter_bug.cgi?product=xorg and then let us know the new bug ID. ** No longer affects: gdm3 (Ubuntu) ** Changed in: xorg-server (Ubuntu) Importance: Undecided => Low ** Changed in: xorg-server (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754401 Title: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1754401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1754401] Re: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied)
Finally found what changed. I updated /etc/fstab to have /proc mounted with hidepid=2,gid=sudo for added security. This works perfectly on 16.04 but totally breaks on 17.10. To recap: mounting /proc with "nodev,noexec,nosuid" works but adding "hidepid=2,gid=sudo" breaks. ** Tags added: regression -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754401 Title: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1754401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1754401] Re: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied)
** Summary changed: - Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) + mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754401 Title: mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1 (Permission denied) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1754401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
