update_uefi_bootentry assumes that the caller sets FREEBSD_BOOTNAME and
mntpt, which isn't the case anymore. The result is that there is no
"FreeBSD" boot entry created/updated after install. Most machines manage
to boot from the removable media path (if the loader is installed there
too), but some don't.

Take the loader's path as an argument and rename the variable used in
the ZFS mirror loop so mntpt can be reused below.

Also mark nentries as a local variable so it doesn't leak out of the
function.

PR:		293385
Fixes:		494de51bc0074472d1b01604f085daea0844f240
MFC after:	2 days
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D55469

Reviewed by:	emaste
MFC after:	2 days
Differential Revision:	https://reviews.freebsd.org/D53170

For proper redundancy, add copies of loader.efi to each of the ESPs we
create when we create multi-volume ZFS datasets. zfsboot creates a list
of secondary ESPs, while bootpart doesn't create any (it's the UFS
partitioning tool) because we don't supporg UFS over gmirror. The
primary ESP is mounted and is what we use efibootmgr to boot from. The
redundant copies allow the system to boot if the primary disks fails.

Sponsored by:		Netflix
MFC After:		2 days
PR:			208802
Reviewed by:		cperciva
Differential Revision:	https://reviews.freebsd.org/D52780

When reinstalling FreeBSD bsdinstall reported "There are multiple
FreeBSD EFI boot entries."  This sounds like something went wrong in the
past.  Clarify that there may be only one existing entry, which is not
surprising for a reinstall.

Reviewed by:	manu, ziaee
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D51527

b6644f5 introduces FREEBSD_BOOTLABEL="FreeBSD" as default value
but cc42ef5 removed this line, expecting it to be set by update_uefi_bootentry()

But ps3 don't use this function so its broken completely.

So we add this line back.

Signed-off-by: Chattrapat Sangmanee <aomsin27@hotmail.co.th>
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1594

This handles copying in install-boot.sh and bsdinstall's bootconfig.

install-boot.sh:
make_esp_file now optionally takes extra arguments so it can copy
multiple files. This is used by the amd64 release scripts.
make_esp_device also takes an extra optional argument for efibootname.
This is currently unused, but it can be used in the future to do
something like:
make_esp_device loader.efi bootx64
make_esp_device loader_ia32.efi bootia32

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1098

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Approved by:		allanjude, asiciliano
Differential Revision:	https://reviews.freebsd.org/D35197
Sponsored by:		Rubicon Communications, LLC ("Netgate")