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| author | Natanael Copa <ncopa@alpinelinux.org> | 2022-05-18 18:16:45 +0200 |
|---|---|---|
| committer | Natanael Copa <ncopa@alpinelinux.org> | 2022-05-18 19:40:28 +0000 |
| commit | 10480664171a28d0b64670f4941bdc32e8a355ee (patch) | |
| tree | 9287f96854c4ee14d3cbed0ca7ca8a6a72b413c9 /setup-disk.in | |
| parent | 83209a9785d3136f376cbe2f96c7603a2d2a8141 (diff) | |
| download | alpine-conf-10480664171a28d0b64670f4941bdc32e8a355ee.zip | |
setup-disk: use smaller ESP partition for UEFI
Grub's efi files are just a few MB, so we can reduce the size of the
ESP. We also enforce FAT32, which requires minimum 32MB. Apparently many
UEFI firmware implementations only support FAT32.
https://wiki.osdev.org/EFI_System_Partition#Format
Diffstat (limited to 'setup-disk.in')
| -rw-r--r-- | setup-disk.in | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/setup-disk.in b/setup-disk.in index b14bbe9..200393d 100644 --- a/setup-disk.in +++ b/setup-disk.in @@ -905,8 +905,9 @@ setup_boot_dev() { bootdev=/dev/md0 fi case "$BOOTFS" in - btrfs) mkfs_args="";; - ext4) mkfs_args="$mkfs_args -O ^64bit";; # pv-grub does not support 64bit + vfat) mkfs_args="-F 32";; # UEFI firmware often only support FAT32 + btrfs) mkfs_args="";; + ext4) mkfs_args="$mkfs_args -O ^64bit";; # pv-grub does not support 64bit esac mkfs.$BOOTFS $MKFS_OPTS_BOOT $mkfs_args $bootdev BOOT_DEV="$bootdev" @@ -1462,7 +1463,7 @@ fi if is_efi || [ -n "$USE_EFI" ]; then USE_EFI=1 DISKLABEL=gpt - BOOT_SIZE=${BOOT_SIZE:-512} + BOOT_SIZE=${BOOT_SIZE:-36} # UEFI needs fat32, which needs minimum 32MB BOOTFS=vfat : ${BOOTLOADER:=grub} fi |