[Bug 1976630] Re: uuidd appears to be broken on Ubuntu 20.04 LTS

[vdbergh]

The previous comment was a red herring.

It turns out it doesn't matter if uuidd is self compiled or not. The
system uuidd also works perfectly if it is started in the terminal
simply by

sudo uuidd

However systemd starts uuidd with

/usr/sbin/uuidd --socket-activation

which probably makes a difference.



** Bug watch added: github.com/util-linux/util-linux/issues #1704
   https://github.com/util-linux/util-linux/issues/1704

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Title:
  uuidd appears to be broken on Ubuntu 20.04 LTS

Status in util-linux package in Ubuntu:
  New

Bug description:
  uuidgen -t returns a correct result when uuidd is _not_ running. See
  the following transcript

  vdbergh at pl:~/$ sudo systemctl stop uuidd.service uuidd.socket
  vdbergh at pl:~/$ uuidgen -t
  ef485202-e275-11ec-b7ab-448500dea459     <----  (correct: last part is the MAC address)
  vdbergh at pl:~/$ sudo systemctl start uuidd.service 
  vdbergh at pl:~/$ uuidgen -t
  f8e7b3ca-e275-11ec-b074-1d42fae212d0   <---- (incorrect)

  The same issue appears with every program that relies on libuuid.

  Example: uuid.getnode() in python3 is supposed to return the MAC
  address but this only works if uuidd is not running.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: uuid-runtime 2.34-0.1ubuntu9.3
  ProcVersionSignature: Ubuntu 5.13.0-44.49~20.04.1-generic 5.13.19
  Uname: Linux 5.13.0-44-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Jun  2 15:59:10 2022
  InstallationDate: Installed on 2020-12-06 (542 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  SourcePackage: util-linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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