<p>i get that remount -rw of / has to await completion of fsck of /, but i wonder if mountall runs fsck even before the pivot_root happens. and i wonder if anything can get mounted before the remount -rw, like perhaps the /run init could be moved sooner. mounting anything before the pivot_root seems unlikely to fly, tho ya never know.</p>
<p>early login easy, just start /etc/init/ssh.conf "on startup". and live with the caveats of early login!</p>
<p>perhaps tmux worth another try. i'd run into something it couldn't do, tho i forget what.</p>
<p>i'm feeling tempted to introduce a feature in screen to restore its /run/screen/*/* pipe if it disappears.</p>