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1-prep/templates/iiab-expand-rootfs: Clarify partition shrinking/expanding

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A Holt 2023-12-19 13:22:22 -05:00 • committed by GitHub
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roles/1-prep/templates/iiab-expand-rootfs
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@ -8,10 +8,16 @@
# Verifies that rootfs is the last partition.
# RELATED:
# 1. https://github.com/iiab/iiab-factory/blob/master/box/rpi/min-sd
# 2. https://github.com/iiab/iiab-factory/blob/master/box/rpi/cp-sd
# 3. https://github.com/iiab/iiab-factory/blob/master/box/rpi/xz-json-sd
# OR https://github.com/iiab/iiab-factory/blob/master/box/rpi/exp-sd
if [ -f /.expand-rootfs ] || [ -f /.resize-rootfs ]; then
echo "$0: Expanding rootfs partition"
if [ -x /usr/bin/raspi-config ]; then # Raspberry Pi OS
if [ -x /usr/bin/raspi-config ]; then # Raspberry Pi OS -- WARNING: their fdisk-centric approach of course FAILS with "Hybrid MBR" or GPT partition tables, as required by any drive > 2TB :/
# 2022-02-17: Uses do_expand_rootfs() from:
# https://github.com/RPi-Distro/raspi-config/blob/master/raspi-config
# 2023-10-05: Official new RPi instructions:
@ -35,7 +41,7 @@ if [ -f /.expand-rootfs ] || [ -f /.resize-rootfs ]; then
fi
# Expand partition
growpart $ROOT_DEV $ROOT_PART_NUM || true # raspi-config instead uses fdisk. WARNING: growpart RC 2 is more severe than RC 1, and should possibly be handled separately in future?
growpart $ROOT_DEV $ROOT_PART_NUM || true # raspi-config instead uses fdisk (assuming MBR). They really should transition to gdisk, as required by any drive > 2TB. WARNING: growpart RC 2 is more severe than RC 1, and should possibly be handled separately in future?
rc=$? # Make Return Code visible, for 'bash -x'
resize2fs $ROOT_PART
rc=$? # Make RC visible (as above)