🚀 go-pugleaf

I've had an external disk on my machine for sometime ( HITACHI DK516C ).  I've
only used it for user and project directories, so the default one partition
has been fine for me.  Before I install 3.0 on my internal, I want to dual
partition my external and install 2.1 on a 300 MB partition and use the other
partition for the same thing the current one partition is used for.

I have a few questions about doing this.

First, In the disktab file there are no entries for hard disks and a little
comment explaining that /usr/etc/disk and /usr/etc/builddisk can automatically
figure out a disks geometry, so no disktab entry is required for one or two
partitions.  The builddisk man page seems to be missing from my system ( was it
ever there? The newclient man page references it ), so I don't know how to do
this.  How do you do this, and can you specify the sizes of the partitions?
Just by poking around it looks like this might work:

	/usr/etc/builddisk -p 330 -s /etc/BLD.sd330 /dev/rsd1a

The "-p 330" assumes 1024K blocks, is this right.  I remember a lot of
discussion about 512K and 1024K block sizes.

Second, If I end up having to write a disktab entry, were can I find a good
book on how to do this kind of thing?

BTW, will the following setup work?
	Three logical volumes:
		/dev/sd0a	3.0 root partition
		/dev/sd1a	2.1 root partition
		/dev/sd1b	User and project directories
	Will /dev/sd1b be mountable if I boot from either 3.0 or 2.1?
	My main concern is that 3.0 might try to "update" /dev/sd1b making
	it unusable by the 2.1 system.

Chris

-- 
Christopher D. Audley
Elec & Comp Engineering
The Johns Hopkins University
Internet: audley@jhunix.hcf.jhu.edu