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Merge pull request #165876 from tpwrules/slim-eltorito

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iso-image: slim down UEFI El Torito image
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Artturi 2022-05-13 14:30:38 +03:00 committed by GitHub
commit a0ed85ef29
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1 changed files with 7 additions and 9 deletions
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16
nixos/modules/installer/cd-dvd/iso-image.nix
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@ -369,10 +369,10 @@ let
${lib.optionalString (refindBinary != null) '' ${lib.optionalString (refindBinary != null) ''
# GRUB apparently cannot do "chainloader" operations on "CD". # GRUB apparently cannot do "chainloader" operations on "CD".
if [ "\$root" != "cd0" ]; then if [ "\$root" != "cd0" ]; then
# Force root to be the FAT partition
# Otherwise it breaks rEFInd's boot
search --set=root --no-floppy --fs-uuid 1234-5678
menuentry 'rEFInd' --class refind { menuentry 'rEFInd' --class refind {
# Force root to be the FAT partition
# Otherwise it breaks rEFInd's boot
search --set=root --no-floppy --fs-uuid 1234-5678
chainloader (\$root)/EFI/boot/${refindBinary} chainloader (\$root)/EFI/boot/${refindBinary}
} }
fi fi
@ -400,10 +400,8 @@ let
# dates (cp -p, touch, mcopy -m, faketime for label), IDs (mkfs.vfat -i) # dates (cp -p, touch, mcopy -m, faketime for label), IDs (mkfs.vfat -i)
'' ''
mkdir ./contents && cd ./contents mkdir ./contents && cd ./contents
cp -rp "${efiDir}"/EFI . mkdir -p ./EFI/boot
mkdir ./boot cp -rp "${efiDir}"/EFI/boot/{grub.cfg,*.efi} ./EFI/boot
cp -p "${config.boot.kernelPackages.kernel}/${config.system.boot.loader.kernelFile}" \
"${config.system.build.initialRamdisk}/${config.system.boot.loader.initrdFile}" ./boot/
# Rewrite dates for everything in the FS # Rewrite dates for everything in the FS
find . -exec touch --date=2000-01-01 {} + find . -exec touch --date=2000-01-01 {} +
@ -421,11 +419,11 @@ let
faketime "2000-01-01 00:00:00" mkfs.vfat -i 12345678 -n EFIBOOT "$out" faketime "2000-01-01 00:00:00" mkfs.vfat -i 12345678 -n EFIBOOT "$out"
# Force a fixed order in mcopy for better determinism, and avoid file globbing # Force a fixed order in mcopy for better determinism, and avoid file globbing
for d in $(find EFI boot -type d | sort); do for d in $(find EFI -type d | sort); do
faketime "2000-01-01 00:00:00" mmd -i "$out" "::/$d" faketime "2000-01-01 00:00:00" mmd -i "$out" "::/$d"
done done
for f in $(find EFI boot -type f | sort); do for f in $(find EFI -type f | sort); do
mcopy -pvm -i "$out" "$f" "::/$f" mcopy -pvm -i "$out" "$f" "::/$f"
done done