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armbian_rootenc_setup: improve get_partition_info()

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The MMGen Project 2026-07-09 18:31:42 +00:00
commit 5d1b0a4be8
Signed by: mmgen
GPG key ID: 3F8B1861E32B7DA2
1 changed files with 12 additions and 7 deletions
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19
scripts/armbian_rootenc_setup.sh
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@ -245,6 +245,7 @@ _set_host_vars() {
target_mounts=($BOOT_ROOT $TARGET_ROOT)
build_subdirs=($SRC_ROOT $BOOT_ROOT $TARGET_ROOT)
src_subdirs=($SRC_ROOT)
boot_partition_sectors=819200 ;; # 400MB
}
check_sdcard_name_and_params() {
@ -633,22 +634,26 @@ get_armbian_image() {
}
get_partition_info() {
local cmdout
cmdout=$(fdisk --list --output='Start' $ARMBIAN_IMAGE)
partition_table_type=$(echo "$cmdout" | grep '^Disklabel' | cut --delimiter=' ' --fields=3)
# global: partition_type_uuid start_sector
local uuid end_sector sectors name
partition_table_type=$(fdisk --list $ARMBIAN_IMAGE | grep '^Disklabel' | sed -r 's/.*\s+//')
case $partition_table_type in
'gpt')
cmdout=$(fdisk --list-details --output='Start,Type-UUID' $ARMBIAN_IMAGE)
read start_sector partition_type_uuid <<<$(echo "$cmdout" | tail --lines=1)
disk_id=$(fdisk --list $ARMBIAN_IMAGE | grep '^Disk identifier' | sed -r 's/.*\s+//')
part_info=$(
fdisk --list-details --output='Type-UUID,UUID,Start,End,Sectors,Name' \
$ARMBIAN_IMAGE | egrep '^\S{8}-\S{4}-\S{4}-\S{4}-\S{12}\s')
read partition_type_uuid uuid start_sector end_sector sectors name <<<$(
echo "$part_info" | head --lines=1)
;;
'dos')
read start_sector <<<$(echo "$cmdout" | tail --lines=1)
part_info="$(fdisk --list-details --output='Start' $ARMBIAN_IMAGE | egrep '^\s*[0-9]+$')"
read start_sector <<<$(echo "$part_info" | head --lines=1)
;;
*) die "$partition_table_type: unrecognized partition table type!" ;;
esac
[ $((start_sector % 8)) -eq 0 ] || die "start sector: $start_sector: first partition misaligned!"
boot_partition_sectors=819200 # 400MB
gmsg "Partition table: $PURPLE${partition_table_type^^}$RESET"
}