Workaround: In /etc/initramfs-tools/initramfs.conf, I simply set: IP=eth0 DEVICE=eth0
If my analysis is correct, DEVICE is ignored and I can simply use IP. If so, I think there are still at least two bugs here: Autodetection doesn't work with multiple interfaces (and it's clear from the code that it's _trying_ to support that use case), and the sample file has this misleading comment: # # DEVICE: ... # # Specify a specific network interface, like eth0 # Overridden by optional ip= bootarg # This makes it sound like DEVICE is used if ip= isn't set, but that's not true -- if ip= isn't set, and IP isn't set, DEVICE is overridden anyway. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1632601 Title: initramfs fails to bring up networking with multiple interfaces, even when an interface is specified To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1632601/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs