[Bug 1761997] Re: /var/run needs mode 777 in bionic

[Launchpad Bug Tracker]

This bug was fixed in the package screen - 4.6.2-1ubuntu1

---------------
screen (4.6.2-1ubuntu1) bionic; urgency=medium

  * debian/screen.preinst: When screen is unpacked but not configured the
    permissions for /var/run/screen need to be changed so that an existing
    screen session can be reconnected to e.g. during an distribution upgrade.
    (LP: #1761997)

 -- Brian Murray <brian at ubuntu.com>  Fri, 20 Jul 2018 06:57:59 -0700

** Changed in: screen (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1761997

Title:
  /var/run needs mode 777 in bionic

Status in screen package in Ubuntu:
  Invalid
Status in ubuntu-release-upgrader package in Ubuntu:
  Invalid
Status in screen source package in Bionic:
  Fix Released
Status in ubuntu-release-upgrader source package in Bionic:
  Invalid

Bug description:
  [Test Case]
  1) have an Ubuntu 16.04
  2) rm /etc/cron.daily/mlocate (this'll ensure you get a conffile prompt)
  3) ssh to Ubuntu 16.04 system so the release upgrade is run in screen
  4) run do-release-upgrade -d
  5) wait for the conffile prompt from mlocate
  6) ssh to the Ubuntu 16.04 system being upgraded
  7) sudo -i
  8) run screen -rd

  With the version of screen in the release pocket you'll receive the
  following error:

  root at clean-xenial-amd64:~# screen -rd
  Directory '/run/screen' must have mode 777.

  [Original Description]
  I saw some odd behaviour of screen during the upgrade from Xenial to Bionic using do-release-upgrade. I was trying to use screen to reattach to an upgrade process that had gone sideways during a router daemon upgrade (duh). But I was told that the permissions on /run/screen needed to be 777. Does the bionic version of screen have that as a requirement? And if so, perhaps do-release-upgrade should set those permissions in anticipation of the upgrade process so that screen works with both old and new versions.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/screen/+bug/1761997/+subscriptions