This is the file hierarchy on tyagi.
/	128M
/var	128M
Swap	3 swap partitions - 1 on each disk (not sure of total)
/usr	8.*G
/playpen1	All of Disk 2 (9G)
/playpen2	Allof Disk 3 (9G)

The important directories are:

/usr/ncvs: CVS root directory. Currently contains the whole CVS tree
for FreeBSD as of 12/20/98. - when you do a cvsup to prepare to build
your own release, this is the CVS directory you specify.  Also, what
you specify for CVSROOT in the make.  (Note: we actually used this to
check out the initial 2.2.8 but then hacked around the cvs checkin
part of the makefile for our release because we couldn't get it to
work.)

/playpen2/work: This is where we did the CVS checkout of
2.2.8-RELEASE.  When we built 2.2.8-DIRT-DAM, we cd'd to
/usr/src.original.see-arun and did a make release (after changing the
Makefile to cp /playpen2/work/src to /usr/release/usr/src instead of
doing a cvs checkout.)  (You can look in /usr/src.original.see-arun
for the Makefile we used to build the initial DIRT-CAM release.)  If
you wanted to build a new release you should probably start with
/usr/src/release instead of playpen2 and make the changes specified
elsewhere in this documentation (including the cp).  So, /playpen2/work
is there mainly only for reference.

/usr/release: This is the destination directory for the "make
release".  CHROOTDIR=/usr/release.  IT gets built as part of "make
release".  

/usr/src/release: src files for building a release. this is part of
the distribution.  (We used playpen2/work/src/release to build the
initial 2.2.8-DIRT-CAM kernel; that serves as a reference for hacks
you need to make in order to compile a new release, but it should not
be touched.)  If you wanted to build a new release you would probably
start here instead of /playpen2/work (but you would have to be careful
about cvsup since this version isn't checked in.)