Argh -- I missed the alternative truth in that rescue-ssh.target shell code. So this message should pretty much *always* appear -- it's nonsense to actually try and restart rescue-ssh.target in the postinst, *always*.
But it is a red herring due to the || true. The upgrade failed on something else but didn't print any error message. So there is no remaining evidence what happens. So let's dedicate this bug report to dropping that deb-system-invoke for rescue-ssh.target.
Argh -- I missed the alternative truth in that rescue-ssh.target shell code. So this message should pretty much *always* appear -- it's nonsense to actually try and restart rescue-ssh.target in the postinst, *always*.
But it is a red herring due to the || true. The upgrade failed on something else but didn't print any error message. So there is no remaining evidence what happens. So let's dedicate this bug report to dropping that deb-system-invoke for rescue-ssh.target.