Thank you for your bug report, indeed that's a leftover symlink and the files are not cleaned on upgrade
** Changed in: avahi (Ubuntu) Importance: Undecided => Low ** Changed in: avahi (Ubuntu) Status: Confirmed => Fix Committed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1901090 Title: run-parts: failed to stat component /etc/network/if-post-down.d/avahi- daemon: No such file or directory Status in avahi package in Ubuntu: Fix Committed Bug description: avahi-daemon 0.7-4ubuntu7 installs a symlink /etc/network/if-post- down.d/avahi-daemon -> ../if-up.d/avahi-daemon but doesn't install the symlink target /etc/network/if-up.d/avahi-daemon That makes ifdown complain: $ sudo ifdown enp2s0f3 run-parts: failed to stat component /etc/network/if-post-down.d/avahi-daemon: No such file or directory The problem only occurs if avahi-daemon is installed from scratch; if it is upgraded from older versions, the missing file is still there according to this line in /var/lib/dpkg/status: /etc/network/if-up.d/avahi-daemon 6dbf1a91ab420a99d1205972d6401e67 obsolete To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1901090/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp