[gabriel rosenkoetter, quoting me]
>> I've done more experiments, and it appears that fsck torches
>> unreferenced files, rather than putting them in lost+found, when
>> their link count is zero [...].
> Fwiw, I agree with greywolf.  This should REALLY be changed.

Did you notice my other message, wherein I mention that I've got
patches to fsck_ffs to do that?  Optionally, at present, but of course
that's easy to change.

ftp.netbsd.org:/pub/NetBSD/misc/mouse/patch-tree/src/sbin/fsck_ffs/
contains them (and one other small patch to main.c, to make skipclean
default off - easy to reverse).

/~\ The ASCII				der Mouse
\ / Ribbon Campaign
 X  Against HTML	       mouse@rodents.montreal.qc.ca
/ \ Email!	     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B