On checking this again with ifupdown 0.8.34ubuntu2 the file is now executable.
** Changed in: ifupdown (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ifupdown in Ubuntu. https://bugs.launchpad.net/bugs/1772975 Title: /lib/udev/ifupdown-hotplug is not executable Status in ifupdown package in Ubuntu: Fix Released Bug description: I'm using Ubuntu 18.10 dev with ifupdown 0.8.32ubuntu1 and /lib/udev /ifupdown-hotplug is not executable resulting in an error message at boot about missing permissions on that file and some negative side- effects (like /sys/class/net/eth0/carrier containing 0 instead of 1 which might break things). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1772975/+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