fix few typos in comments.

branches: 1.20.2;
Add missing stuff for vax

Do not populate /dev on CD images by default, instead rely on init
doing the tmpfs / MAKEDEV magic.
On images for machines with serious ram shortage (where the additional
tmpfs hurts, like VAX) override this with CDDEV_POPULATE=true.
Should fix PR port-amd64/54776.

Consistently use ${RELEASEDIR}/${RELEASEMACHINE} instead of
${RELEASEDIR}/${MACHINE} (Paul Ripke)

branches: 1.17.2;
Now that we do not force debug sets off install CDs any more, explicitly
set CDRELEASE_NODEBUG everywhere.

branches: 1.16.10; 1.16.12;
Initial pass to be unaffected by build umask on build artifacts
1. ${MKDIR} -> ${MKDIR} ${MKDIRPERM}
2. ${CP} -> ${INSTALL} ${COPY} -m <perm>

branches: 1.15.2; 1.15.4;
Make sure to copy the language catalog files for sysinst, but do not
copy sysinst itself to / on the CD, and instead use the base version
for installation.

2nd try: make amd64, i386, sparc64 and vax iso images use full sets.
While there fix an old bug that makefs used the build hosts /etc/group
and passwd information when creating the image.
Thanks to Andreas Gustafsson for extensive testing.

Revert previous untill fallout has been fixed.

Add a new simple method to put whole sets on CD images (instead of
listing single binaries or patterns) and use those for the existing
ISO images.

Add libpthread.so* - new lzma needs it.

Punt custom dhcpcd hooks in favour up upstream hooks

CD images need libarchive if MKBSDTAR is yes.

branches: 1.8.2;
Adjust for sysinst move.

When uncompressing the kernel, allow overwriting of an existing one in the
cdrom content directory - this helps update builds.

Instead of running MAKEDEV inside the image content dir (which would only
work for root), make it emit a mtree spec file and pass that to makefs.
This should also work for unprivileged builds.
Problem pointed out by Izumi Tsutsui.

Pre-populate /dev on the CD - with rockridge extensions we can do this and
it saves us one tmpfs (or mfs) instance, which helps quite a bit on low
memory machines.

The current vax /boot is super slow unziping kernels - and this is a CD, wich
has space enough, so unzip the kernel on it to speed up the boot process.
XXX The /boot bug should nevertheless be fixed.

Use GENERIC instead of INSTALL (including the ramdisk) for this CD image
and mount the CD filesystem as root instead for installation.

branches: 1.2.6; 1.2.18;
use ${CDIMAGE} instead of ${CDBASE}.iso

branches: 1.1.2; 1.1.14; 1.1.22; 1.1.30; 1.1.38; 1.1.40;
Add an iso_image target (iso-image as a target name doesn't play well with
bsd.subdirs.mk) in distrib/makefile, which builds an iso image for $MACHINE
with binary sets, stored in ${RELEASEDIR}/iso. The image is bootable for:
alpha, amd64, cats, i386, pmax, sgimips, sparc, sparc64, sun3, vax.
mac68k/macppc no there yet because of missing feature in makefs.

call iso_image in distrib/ for iso-image in the top Makefile.

kernfs no longer needs a hacky workaround to make rootdev appear.

branches: 1.3.2; 1.3.6; 1.3.28;
Make it deal with /dev being the result of a "MAKDEV all" instead of
"MAKEDEV init" by mounting a ptyfs if needed.

If mounting the various tmpfs instances fails, we do not have enough
RAM installed. Tell the user about it and exec a single user shell
(instead of randomly failing later and hanging the machine.)

Use GENERIC instead of INSTALL (including the ramdisk) for this CD image
and mount the CD filesystem as root instead for installation.

branches: 1.1.2; 1.1.6;
Use GENERIC instead of INSTALL (including the ramdisk) for this CD image
and mount the CD filesystem as root instead for installation.

Enable basic command line editing in evbarm, sparc64 and vax installer shells

(Following the pattern in amd64)

When a user selects "exit installer" or hits ^Z in sysinst, the
calling install.sh runs a shell, plus shows a message indicating
they can type "exit" to return to the installer.

Add -E to the arguments to this shell, to enable command line editing,
(primarily for arrow keys, but basic emacs sequences will also work)

With the change of all the install.sh scripts in amd64, evbarm,
i386, sparc64 and vax are identical apart from NetBSD RCD tags and
the sysctl -nx kern.consdev check (some of the latter are definitely
either wrong, or have an incorrect comment attached. Will return
to later)

branches: 1.2.26;
Make sure to copy the language catalog files for sysinst, but do not
copy sysinst itself to / on the CD, and instead use the base version
for installation.

branches: 1.1.2; 1.1.6;
Use GENERIC instead of INSTALL (including the ramdisk) for this CD image
and mount the CD filesystem as root instead for installation.

Add missing stuff for vax