Date   : Thu, 23 Jun 1983101:28:00-PDT
From   : bridger@rand-unix
Subject: faster hard-disk warmboot?

       Setting the CP/M directory checksum word to zero in the disk
parameter header of a hard-disk drive does not appear to eliminate
the re-building of the allocation vector bit-map on each warm-boot and
login-drive function.  Has anyone attempted to limit this to cold-boots,
so that control-C will be essentiallyinstantaneous for hard-disk drives?
Are there problems with this approach--DUPUSER, for example, needs an
upda ting of  the vector in some cases.
                                     --bridger