[[[Ouch. Sorry. Ouch. The first edition of this text lost the first
word of its Subject. Fixed now]]]
I remember I first learned of `fsck -f -y /` after `umount /` in the
Subject: fsck fsck fsck say I
Speaking again now of fsck'ing on demand, eventually I also noticed,
My `man -k fsck` does not yet, but could/ should, point to:
Skip fsck on reboot.
Force fsck on reboot.