Comment 2 for bug 1708409

The referenced upstream bug report shows that upstream agrees this is a regression in systemd behavior which they are planning to correct, which is reasonable.

However, I think this is also a bug in the kdump-tools package. 'default.target' is a meta-target, which no package can know whether it's appropriate to start its service under without knowing what default.target is set to. In particular, kdump-tools also declares 'Wants=network-online.target'. If default.target (either on the kernel commandline or on the filesystem) is pointed to some sort of local-only rescue target, having network-online pulled into this target via kdump-tools could break the boot.

I think kdump-tools in Debian and Ubuntu should instead be integrating with multi-user.target.