how to find out the boot device

[Jan Pechanec]

	hello guys,

	during the rc.d phase, I need to find out in a shell script from 
which disk the system has booted up.

	- I cannot use kern.rootdev because my root fs is a memory disk
	- I cannot use kern.disks because the first disk there doesn't 
necessarily mean the boot disk (eg. my home box says 'cd0 ad0' for that)
	
	- I could use 'atacontrol list' or 'camcontrol devlist' because I 
always boot from the 1st disk, but if I have both types of disks then I have 
1st ATA disk and 1st SCSI disk and again unable to recognize which one is 
the one I need.

	any ideas, please?

	thank you, j.

-- 
Jan Pechanec <jp (at) devnull (dot) cz>
http://www.devnull.cz