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Increase the amd64 ISO ESP file size from 800KB to 1024KB.

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At some poing over the last week, the bootx64.efi file has grown
past the 800KB threshold, resulting in being unable to copy it to
the EFI/BOOT directory.

 # stat -f %z efiboot.znWo7m
 819200
 # stat -f %z stand-test.PIEugN/EFI/BOOT/bootx64.efi
 842752

The comment in the script that creates the ISOs suggests that 800KB
is the maximum allowed for the boot code, however I was able to
boot an ISO with a 1024KB boot partition.  Additionally, I verified
against an ISO from OtherOS, where the boot EFI partition is 2.4MB.

Sponsored by:	Rubicon Communications, LLC (netgate.com)
This commit is contained in:
gjb 2020-10-15 17:12:58 +00:00
parent 316f90854d
commit 82509e6324
2 changed files with 6 additions and 6 deletions
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6
release/amd64/mkisoimages.sh
View File

@ -46,10 +46,10 @@ if [ "$1" = "-b" ]; then
bootable="-o bootimage=i386;$BASEBITSDIR/boot/cdboot -o no-emul-boot"
# Make EFI system partition.
# The ISO file is a special case, in that it only has a maximum of
# 800 KB available for the boot code. So make an 800 KB ESP
espfilename=$(mktemp /tmp/efiboot.XXXXXX)
make_esp_file ${espfilename} 800 ${BASEBITSDIR}/boot/loader.efi
# ESP file size in KB.
espsize="1024"
make_esp_file ${espfilename} ${espsize} ${BASEBITSDIR}/boot/loader.efi
bootable="$bootable -o bootimage=i386;${espfilename} -o no-emul-boot -o platformid=efi"
shift

6
release/arm64/mkisoimages.sh
View File

@ -40,10 +40,10 @@ if [ "$1" = "-b" ]; then
BASEBITSDIR="$4"
# Make an EFI system partition.
# The ISO file is a special case, in that it only has a maximum of
# 800 KB available for the boot code. So make an 800 KB ESP
espfilename=$(mktemp /tmp/efiboot.XXXXXX)
make_esp_file ${espfilename} 800 ${BASEBITSDIR}/boot/loader.efi
# ESP file size in KB.
espsize="1024"
make_esp_file ${espfilename} ${espsize} ${BASEBITSDIR}/boot/loader.efi
bootable="-o bootimage=efi;${espfilename} -o no-emul-boot -o platformid=efi"