Use /dev/fd0a rather than /dev/rfd0a to read instfs.tgz image from floppy.
It looks newer (appearred after 1.6) gzip tries to read less than DEV_BSIZE
(to check header?) so we can't use raw device directly.
(note sparc bootfs ramdisk doesn't have dd(1))

Workaround for PR port-sparc/42193, and would also fix PR install/28734.

branches: 1.19.4; 1.19.10;
Convert TNF licenses to new 2 clause variant

branches: 1.18.16; 1.18.32; 1.18.34;
Pass explicit device to eject(1), since it doesn't know about the floppy
driver's "partition" scheme..

Mount the mfs /instfs with a reasonable inode density, otherwise it
runs out of space.
Problem found & fixed by Adam Lebsack <adam@lebsack.com> in [port-sparc/17614]

branches: 1.16.2;
cdrom(): allow the location of `instfs.tgz' on the CD to be overridden
as suggested by Robert Elz on port-sparc.

cdrom(): Look for the `instfs.tgz' image in the $MACHINE subdirectory of
the CD-R root first.

Eject the floppy disks.

Don't bother with the tape block size unless explicitly requested.

Support the two-stage memory-disk based bootstrap method for tape, cdrom
and floppy.

Boot from floppy now requires two disk images:
- a bootable bootfs which contains a spartan md-based `ramdisk'
filesystem, which loads the tar file image:
- instfs, which is constructed from the miniroot filesystem
and contains all installation utilities.

The current miniroot image also supersedes the former separate
{bootfs,ramdisk}.sysinst tools.

branches: 1.10.2;
sweep of my licenses for consistency. (no functional changes) These
files have copyright held by people in addition to myself. (I did the
original work, they copied it, enhanced it, and added their copyright
to the derivative work.) Their approval has been given re: the license
change.

fix up NetBSD RCS Ids to match the standard, and the leading comment as
to match as well. No functional changes.

rename (revert) memory disk filename /dev/mdX -> /dev/mdXa

Fix root device name md0a -> md0

Don't start update.

branches: 1.5.4;
miniroot changes:
install.sub:
- fix interface grovelling, ifmedia support, allow ifmedia and link
to have a "none" (-> "") answer (which lets you give nothing when
a default answer is given)
- allow installing more than one set at a time, including "all" as
a synonym for all remaining sets
- mount -o async when extracting sets
makeconf.awk:
- put default "libs" section at the end rather than the start, so
you can put other "libs" in before this list
- minor cleanup

mtree.conf:
- create /kern

sparc install.md:
- MDSETS are now "kern xbase xcomp xcontrib xfont xserver"
- use /kern & kernfs (replaces dmesg)
- replace grep & cut pipe lines with sed
- replace grep hackery with sed hackery
- grep and cut are no longer required! yay!
- deal with no /usr/bin/vi -- call disklabel -i
- in md_copy_kern() link the netbsd.GENERIC we got from the kern set,
rather than the miniroot kernel
sparc miniroot list:
- no more dmesg, cut or grep

sparc ramdisk changes:
Makefile:
- `ramdiskbin.conf' is now generated by makeconf.awk
- don't use libhack's opendir, it breaks
dot.profile:
- don't assume terminal is `sun'
- set EDITOR=ed
-
list:
- instbin -> ramdiskbin to make `makeconf.awk' work
- CRUNCHSPECIAL those special dirs
- add our LIBS as necessary

libhack changes:
- if NOLIBHACKOPENDIR is set, don't build opendir.o

after checking and setting DONEPROFILE, export it so that children of the
shell (e.g. programs and shells invoked via sysinst) don't try to run
sysinst again. Fixes PR#7805.

branches: 1.3.2; 1.3.4;
- share more with the miniroot
- don't use sysinst yet, it's not ready for the sparc, go back to
the old miniroot install programs.

- add these programs:
- pppd (nice to install from an SS2 with local floppy & modem only)
- bzip2 (media may be bz2'ed in the RFSN future)
- edlabel (much ligher weight than disklabel)
- expr (miniroot)
- hostname (miniroot)
- netstat (miniroot)
- sort (miniroot)

- remove these programs:
- tset (not used)
- strings (too big now)
- slattach (who uses slip these days, *really* ? see pppd addition)
- disklabel (see edlabel addition)
- shutdown (have reboot/halt already)
- sysinst (not using it yet)

- grow the install filesystem a bit more, to facilitate the new programs.

- use gordons libhack stuff, to reduce the size of the install binary.
- don't need /etc/master.passwd or the {s,}pwd.db files anymore!

- clean up dot.profile a bit.

mount /dev/md0a rw

branches: 1.1.1;
Initial revision