I'm trying to get kexec reboots to work on my box with systemd. I can get "kexec -l ..." and "kexec -e" to work when ran straight from the command line, but when I run "kexec -l ..." and "systemctl kexec" I get "kexec returned error code 1" and it falls back to a full reboot. I've puzzled over this for a while, but I can't figure out the difference between the two situations that would prevent the later from working. (error code 1 doesn't tell me much) Ideas?