These are scripts to automate the use of pbulk (pkgsrc's parallel bulk building tool) across multiple chroots on the same machine.
It supports non-native chroots, so you can e.g. build i386 packages on an amd64 host, or build 8.0 packages on a 9.0 machine. libkver is used to fake the kernel version number.
Using multiple chroots is recommended on multi-core systems to properly parallelize the building of packages.
mksandbox.sh- download and extract NetBSD to a base chrootbulknodes.sh- manage parallel building nodes
Once the base chroot is created, use mount_null to install pkgsrc to its /usr/pkg.
pbulk must be initialized in the base chroot with
bulknodes.sh init-pbulk. Afterwards the worker chroots can be
mounted with bulknodes.sh mount and the build started with
bulknodes.sh run-build. Most options to buildnodes.sh
should be fairly self-explanatory. -t can be used to store
most of NetBSD on tmpfs, useful on machines with lots of memory.
After initialization you may want to edit
${base_chroot}/data/pbulk/etc/pbulk.conf to enable e.g.
publishing, raise or lower ulimits, etc.