Worked great! Upto a point... [1]
Ghostbsd v3 -- lxde version (from thumbdrive; the CDR did not work...)
...install
...select timezone, keyboard, disk size, passwords
...finish
Recovered rc.conf, firewall.conf, etc from the last working version
Rebooted to the new ide disk, still in the USB enclosure.
Installed a slew of .tbz /lookat/, /mmv/, /w3m/,
Mistakenly tried to install a boot manager.
No combination of forum posts, man page examples, etc would enable it to boot again.
(The boot manager, defaulted to F2 or boot: each of which failed to proceed with the
terse failure one might expect in the worse cases...)
Sysinstall has recovered (or destroyed, depending upon how one
might want to describe the end result)... the partition (now mountable and empty).
Might get around to installworld upon it, or even repeat the GhostBSD again. (Not
installing a boot manager AFAIK...)
[1] For under $10, the enclosure, whose cable has two/1 ends (each of the 2-side plugged into usb) and one end to
its usb caddy side... never failed to have the disk detected, etc... WAY useful if anyone has a ide laptop...