If you're running Debian on EC2, do you have the problem where restart from within the instance doesn't complete? (Have you found a way around it?)
Edit: Not sure whether there was a real problem before (vs PEBKAC), but the new images _do_ reboot successfully (takes about 2 minutes). Now to get systemd running...!
No, I'm not noticed this. That said, in the past (2years+) I have contacted AWS support about an instance that wouldn't start and was told shutting down from within an instance would normally work, but was not officially supported.
I think they were just looking for a scapegoat in that particular case.
For anyone reading along, reboot does now work, and I was just able to install systemd (apt-get update, apt-get install systemd, edit /etc/default/grub, edit /etc/fstab to remove the systemd-unsupported nobootwait line, update-grub, init 6). Thank you Debian cloud team :-)