Bug#877992: postfix: Postfix does not start services after upgrade to stretch 9.2 and reboot

As far as I can tell, we're hitting multiple issues : - before #873957, /lib/systemd/system-generators/postfix-instance-generator "if" could never have matched at all but the else saved us - after #873957, /lib/systemd/system-generators/postfix-instance-generator "if" started working, but using p

Bug#865586: live-build: binary_hdd failed with mkfs.vfat error

Seems like I'm hitting the same issue with hdd image. iso-hybrid is working fine. config (not hook or any other modification after this) : lb config --distribution stretch --binary-images hdd --architectures amd64 --linux-flavours amd64 \ --archive-areas "main contrib non-free" --apt-indices fal