Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Merge ^/projects/release-install-debug:

- Rework MANIFEST generation and parsing via bsdinstall(8).
- Allow selecting debugging distribution sets during install.
- Rework bsdinstall(8) to fetch remote debug distribution sets
when they are not available on the local install medium.
- Allow selecting additional non-GENERIC kernels during install.
At present, GENERIC is still required, and installed by default.

Tested with: head@r293203
Sponsored by: The FreeBSD Foundation

Fix argument quoting and remove unnecessary braces

MFC after: 3 weeks
X-MFC-to: stable/10

CDs are not partitioned, so this is not correct syntax for loading from
ISO 9660. Omit the partition ID.

Approved by: re (kib)
MFC after: 2 weeks

- Add CHECKSUM.* support in Makefile[1].
- Use ln -fs to create a symlink.
- Remove pkgadd for docports.
- Use WITHOUT_JADETEX=yes instead of WITH_JADETEX=no.
- Add {WORLD,KERNEL}_FLAGS to [BTWK]MAKE.
- Use makefs(8) and gpart(8) for sparc64 ISO image[2].
- Add publisher option to makefs(8)[2].

Based on work by: gjb[1]
Discussed with: marius, nwhitehorn[2]

ISO 9660 specification allows only "d-characters" and "a-characters" in the
Volume Descriptor (section 7.4). In short, upper-case alphanumeric + some
symbols only. While the makefs utility automatically converts the characters,
$LABEL should be consistent in the scripts.

Provide a kboot.conf to allow powerpc64 install media to be booted on
Playstation 3 consoles running kboot or petitboot.

Approved by: re (bz)

Add an MBR to our release media to aid booting some IBM systems.

Fix pSeries/PAPR boot CD construction after actual testing. It seems that
IBM SLOF is (a) case-sensitive and (b) accepts only booting files in
certain subdirectories of the CD.

Add (somewhat speculative) bootable CD support for PAPR/pSeries-type
systems. In principle, FreeBSD should run on at least some of these
already, and support for the remainder will hopefully show up eventually,
so add this while I'm thinking about it.

Garbage collect some unused variables and stray debug code.

Submitted by: marius

Change the way powerpc bootable CDs are generated to work around a bug
in hybrid image generation in cdrtools. This produces a small HFS partition
containing loader, mapped in by an oddly-formed APM table using a new
feature in makefs. This does not appear to work yet on early-model G3
systems, which will be fixed later, but produces bootable CDs on
everything else.

Use labels to find release media instead of hard-coded device paths. This
makes booting more reliable (and working at all on USB sticks). While here,
move responsibility for setting up fstab into the various platform mk-*.sh
scripts.

Suggested by: many

Fix the overflowing livefs ISO by removing man pages from the HFS part of
the hybrid disk. This is a stopgap until a better solution can be found,
but lets the powerpc release build complete for the time being.

MFC after: 1 week

Replace an obsolete flag -L in an mkisofs(1) command line with
-allow-leading-dots to fix "make release" for FreeBSD/powerpc.

Reviewed by: marcel

Add files needed for PPC release ISOs. These are built with the
HFS/ISO9660 extensions to be bootable on Power Macs.

boot.tbxi - the CHRP script executed by Open Firmware when auto-booting
CDs
hfs.map - map Unix files to HFS creator/type fields

Reviewed by: ru
Submitted by: ssouhlal