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

[Łukasz Zemczak]

Hello Mark, or anyone else affected,

Accepted screen into bionic-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/screen/4.6.2-1ubuntu1
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

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

** Tags added: verification-needed verification-needed-bionic

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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 Committed
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.

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