2

I uninstalled today quagga 0.99.23 from a Debian Stretch server to install bird.

After deinstalling quagga, I have found out that I am unable to install any other package.

Whenever I try to install any new package, I got back the error:

unknown user 'quagga' in statoverride file

What to do?

  • That’s odd, uninstalling quagga shouldn’t have removed the corresponding system user... I know you found a workaround, but could you please file a bug too? The main issue is that the statoverride setup in the postinst doesn’t have a corresponding removal in the postrm. – Stephen Kitt Jul 21 '17 at 15:51
  • @StephenKitt I may file a bug later on. I am done with quagga in Debian after them dropping SysV support abruptly. I will have to test with their new packages still have this bug. I edited the question to add the version. – Rui F Ribeiro Jul 21 '17 at 15:54
  • 2
    Ah, right, you uninstalled an old version... That old version did indeed remove the system user, the current version doesn’t, which would avoid the issue. (That’s actually a decent tip in general: paradoxically, before uninstalling an old package, make sure it’s up-to-date, even if that involves losing the initscripts.) – Stephen Kitt Jul 21 '17 at 16:01
  • I confirmed it, 1.1.1 is not affected; it does not affect Jessie too. Interesting. – Rui F Ribeiro Jul 21 '17 at 16:02
  • @StephenKitt Doing today the final migration to bird: it did not happen with 2 more servers, but it happened again with a 4th server. – Rui F Ribeiro Jul 26 '17 at 12:43
3

I found the line

quagga quaggavty 775 /etc/quagga

in the file /var/lib/dpkg/statoverride.

After deleting that line, I was able to install bird.

Apparently, the oficial way to do it is (this also happened later on another server, and this time I used this form):

sudo dpkg-statoverride --remove /etc/quagga

And to list all overrides:

dpkg-statoverride --list

From man dpkg-statoverride

   --remove path
          Remove an override for path, the status of path is left
          unchanged by this command.

   --list [glob-pattern]
          List all overrides. If a glob pattern is specified restrict
          the output to overrides which match the glob. If there are no
          overrides or none match the glob dpkg-statoverride will exit
          with an exitcode of 1.

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