boot_*.8: reference installboot.8, rectify FFS note on sparc64

On sparc64, installboot(8) does not deal with any file system; its -p is a
NOOP and according to CVS history the old sys/arch/sparc64/i

boot_*.8: reference installboot.8, rectify FFS note on sparc64

On sparc64, installboot(8) does not deal with any file system; its -p is a
NOOP and according to CVS history the old sys/arch/sparc64/installboot/
never prepared a file system, either.

Remove this single misleading mention alltogether and rely on the now
consistently cross-linked MI installboot(8) for details, if any.

This syncs the list of currently existing MD boot_*(8/*) pages with the list
of usr.sbin/installboot/*_installboot.c files.

boot_alpha(8/alpha) already references installboot(8) but still uses
sys/arch/alpha/stand/installboot/ instead of usr.sbin/installboot/.

boot_luna88k(8/luna88k) exists but luna88k does not use installboot at all.

installboot(8) has additional support for efi (armv7, arm64, riscv64),
landisk, loongson, octeon and powerpc64 but those architectures currently
lack their own MD boot_*(8/*) manual.

OK miod

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Default to softraid on boot-device iff found

root on softraid on sparc64 currently requires explicitly passing the volume
name as part of the boot arguments, e.g.
boot-file=sr0
boot-file=sr0a:/bsd

Default to softraid on boot-device iff found

root on softraid on sparc64 currently requires explicitly passing the volume
name as part of the boot arguments, e.g.
boot-file=sr0
boot-file=sr0a:/bsd
or
{ok} boot my-devalias sr0:

(ofwboot always probes for softraid devices, assembles them but continues
to ignore such volumes unless specified.)

This is inconsistent with softraid support on other platforms and has
further drawbacks when it comes to sysupgrade logic.

Unless an explicit root disk was given, make ofwboot default to the softraid
volume on the boot device to make root on softraid work out of the box
without having to set variables or pass arguments in OpenBoot.

Eventually, ofwboot's disk discovery and softraid assembly machinery will be
fixed and boot-file won't be misused for softraid purposes anymore.

Remove the quirky softraid paragraph from boot_sparc64(8) now that it
is purely optional, expecting users from now on to either leave boot-file
empty or pass a kernel filename alone.

Tested on T4-2 guest domains with and without root on softraid.

Feedback claudio kettenis stsp
OK kettenis (previous diff)
OK stsp

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Restore description of the sparc64 boot process which was lost when
MD installboot was moved to the attic. Put it into boot_sparc64(8),
which still pointed readers at installboot(8) for this informat

Restore description of the sparc64 boot process which was lost when
MD installboot was moved to the attic. Put it into boot_sparc64(8),
which still pointed readers at installboot(8) for this information.
With some markup tweaks from schwarze@

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macro cleanup; ok jmc@ stsp@

Manual page updates for sparc64 softraid boot support.

Neither .Pp nor unqualified text are allowed at the top level of .Bl;
instead, .It is required. Thus, move .Pp and text before the .Bl,
and remove the .Pp altogether where it is not needed.

Syntax

Neither .Pp nor unqualified text are allowed at the top level of .Bl;
instead, .It is required. Thus, move .Pp and text before the .Bl,
and remove the .Pp altogether where it is not needed.

Syntax errors found by mandoc(1), also required to fix the mandoc build;
feedback and ok jmc@, and sobrado@ also supports the direction.

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convert to new .Dd format;

steal a line from boot_sparc(8): note that L1 is also known as the stop
key;

ok deraadt@

cdrom/CDROM -> CD-ROM;

Mention bsd.rd in the FILES section.

help makewhatis produce correct entries.
okay deraadt@

put escapes in the right place;
(i.e. stuff I got wrong the first time, or missed)

this includes some .Cd's with missing quotes and .Nm abuse in man4;

fix some lists and macros;

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

typos;
added .Fl to flags for boot_*

ok deraadt@

Overhaul of boot_`arch`(8) manual pages (unfinished).

Attempt to factorize some texts, remove old or false stuff, try to be
more {help,use}ful, etc.

boot_alpha and boot_hp300 rewritten on the occas

Overhaul of boot_`arch`(8) manual pages (unfinished).

Attempt to factorize some texts, remove old or false stuff, try to be
more {help,use}ful, etc.

boot_alpha and boot_hp300 rewritten on the occasion, and boot_hppa is new.

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Mention that sparc and sparc64 have UKC.
Also, try to do a better job at describing how the different prom
versions find the bootloader and the kernel filename.

boot_sparc64(8) for, well, sparc64.