Install doc
Step 1.
# cd /usr/ports/textproc/openjade
# make install clean && rehash
#cd /usr/ports/graphics/netpbm
# make install clean && rehash
# cd /usr/ports/www/tidy
# make install clean && rehash
Step 2.
# cd /usr/doc/
# make install clean && rehash

Build release
firewall# cat release.build
#!/bin/sh
cd /usr/src/release

# BUILDNAME= `uname -r`
time make release \
 CHROOTDIR=/usr/releng \
 CVSROOT=/usr/src \
 BUILDNAME=8.0-RELEASE-p2 \
 CVSARGS="-qR" \
 EXTSRCDIR=/usr/src \
 EXTDOCDIR=/usr/doc \
 EXTPORTSDIR=/usr/ports \
 DOC_LANG=en_US.ISO8859-1 \
 KERNEL_FLAGS="-j 4" \
 MAKE_DVD=yes \
 MAKE_ISOS=yes \
 NODOC=yes \
 NOPORTS=yes \
 PORTSRELEASETAG=HEAD \
 ELEASEDISTFIL=/usr/ports/distfiles
 RELEASETAG=RELENG_8 \
 SEPARATE_LIVEFS=no \
 TARGET_ARCH=i386 \
 TARGET=i386 \
 WORLD_FLAGS="-j 4" \
 NOPORTREADMES=yes
#
# KERNELS=cq61 \

firewall# chmod 751 release.build
firewall# ./release.build

Build CD-ROM
firewall# cat release.cdrom
#!/bin/sh
sh /usr/src/release/i386/mkisoimages.sh -b FreeBSD8 /usr/8.0-RELEASE-p2.iso /usr/releng/R/cdrom/disc1
firewall# cdmod 751 release.cdrom
firewall# ./release.cdrom