Comment 13 for bug 528967

Ahh - it took me a while to figure out what might have been obvious: byobu-janitor needs to be run from a fresh terminal which has the original value for $SSH_AUTH_SOCK. It also needs --force:

$ byobu-janitor --force

The range of configuration things it looks at is a bit scary, so I think I'll stick to the manual symlink I mentioned in my last post as a workaround for now.

Still not sure why the symlink isn't there after reboot/startup....