According to http://www.undeadly.org/cgi?action=article&sid=20110530221728 I've set up fully encrypted disk by using the bioctl(4) feature for specifying a key disk
# bioctl -C force -c C -l /dev/wd0d -k /dev/sd0d softraid0 and it works perfectly. But, is it possible to use the same key disk for multiple systems, ie. using the same passphrase between them? The man page for bioctl(4) mentions a -P switch -P Change the passphrase on the selected crypto volume but its usage is unclear to me. Regards, Erling