[net.micro.mac] HD20 and multiple system files

clarke@h-sc1.UUCP (cam clarke) (02/16/86)

I just got Apple's Hard Drive 20 and connnected it to a 512K Mac.  The
manual that came with it has an addendum that says not to use multiple
system files with HD20.  
First: Does anyone know why they don't recommend it?
Second: If I have adequate backups of everything, can anyone tell me
	how to switch between two or more system folders on the HD20?
	It seems like such a useful thing to be able to do with all
	that memory and the HFS.

Comments, suggestions, etc. would be appreciated via mail, and I can
post a summary later.