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x86/efi: add FAT32 esp mounting support

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Adds a new function get_magic_fat32() in base-files to read FAT32 magic.
Now FAT32 EFI system partition can be handled in the same way as FAT12/FAT16.

Signed-off-by: Kagurazaka Kotori <kagurazakakotori@gmail.com>
[replace '-o' with '] || [' to satisfy shellsheck]
Signed-off-by: Paul Spooren <mail@aparcar.org>
This commit is contained in:
Kagurazaka Kotori 2020-09-08 16:00:02 +08:00 committed by Paul Spooren
parent 7937c1f7d7
commit 927b9df938
1 changed files with 6 additions and 1 deletions
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7
package/base-files/files/lib/upgrade/common.sh
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@ -133,6 +133,10 @@ get_magic_vfat() {
(get_image "$@" | dd bs=1 count=3 skip=54) 2>/dev/null (get_image "$@" | dd bs=1 count=3 skip=54) 2>/dev/null
} }
get_magic_fat32() {
(get_image "$@" | dd bs=1 count=5 skip=82) 2>/dev/null
}
part_magic_efi() { part_magic_efi() {
local magic=$(get_magic_gpt "$@") local magic=$(get_magic_gpt "$@")
[ "$magic" = "EFI PART" ] [ "$magic" = "EFI PART" ]
@ -140,7 +144,8 @@ part_magic_efi() {
part_magic_fat() { part_magic_fat() {
local magic=$(get_magic_vfat "$@") local magic=$(get_magic_vfat "$@")
[ "$magic" = "FAT" ] local magic_fat32=$(get_magic_fat32 "$@")
[ "$magic" = "FAT" ] || [ "$magic_fat32" = "FAT32" ]
} }
export_bootdevice() { export_bootdevice() {