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EC2: Default to "uefi-preferred" boot mode

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In EC2, UEFI boots faster than BIOS, but not all amd64 instance types
support UEFI.  AMIs need to have their boot mode designated, which
created a dilemma: Faster boots, or wider compatibility?

The recently added "uefi-preferred" option solves this: AMIs can be
marked to use UEFI where it's available, but fall back to BIOS on
instance types which do not support UEFI.

This uses bsdec2-image-upload 1.4.6, which recently landed in the
ports tree.

PR:		265697
Reviewed by:	delphij, imp
MFC after:	1 week
Sponsored by:	https://www.patreon.com/cperciva
Differential Revision:	https://reviews.freebsd.org/D40470
This commit is contained in:
Colin Percival 2023-06-07 15:17:12 -07:00
parent 104e8215cc
commit bcf9147144
1 changed files with 4 additions and 1 deletions
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5
release/Makefile.ec2
View file

@ -25,11 +25,14 @@ SSMOPTS= --ssm-name ${SSMPREFIX}/${TARGET_ARCH:S/aarch64/arm64/}/base/ufs/${REVI
EC2ARCH= --${TARGET_ARCH:S/aarch64/arm64/}
.endif
.if !defined(AMIBOOTMETHOD)
AMIBOOTMETHOD= UEFI
AMIBOOTMETHOD= UEFI-PREFERRED
.endif
.if ${AMIBOOTMETHOD} == "UEFI" && ${TARGET_ARCH} == "amd64"
BOOTMODEOPT= --uefi
.endif
.if ${AMIBOOTMETHOD} == "UEFI-PREFERRED" && ${TARGET_ARCH} == "amd64"
BOOTMODEOPT= --uefi-preferred
.endif
CLEANFILES+= ec2ami