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Update basic_mount_image.sh

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Léo DONATH-ILIC 2023-05-24 11:03:58 +02:00 committed by GitHub
parent 955c8b57c9
commit 826f0b2de8
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1 changed files with 3 additions and 19 deletions
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shell_utils/basic_mount_image.sh
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@ -1,7 +1,7 @@
#!/bin/bash
# Last update 16/05/2023 (dd/mm/yyyy) by Léo DONATH-ILIC
# Last update 16/05/2023 (dd/mm/yyyy)
# This script will mount a given image in loop mode.
# Make sure to change the path and offsets for the image you use. You can get
@ -22,10 +22,9 @@ set -e
# Double check the path and offsets as noted above!
# Path to the image
IMAGE='/home/leo/Downloads/2023-05-03-raspios-bullseye-arm64-lite.img'
IMAGE=''
######################### NEW #########################
# Start sector of boot (first) partition
BOOT_START=`sfdisk -J ${IMAGE} | grep -m 1 start | sed 's/"start":\|"\|,//g'`
# Amount of sectors of boot (first) partition
@ -34,28 +33,13 @@ BOOT_SIZE=`sfdisk -J ${IMAGE} | grep -m 2 size | tail -n +2 | sed 's/"size":\|"\
ROOT_START=`sfdisk -J ${IMAGE} | grep -m 2 start | tail -n +2 | sed 's/"start":\|"\|,//g'`
# Amount of sectors of root (second) partition
ROOT_SIZE=`sfdisk -J ${IMAGE} | grep -m 3 size | tail -n +3 | sed 's/"size":\|"\|,//g'`
######################### OLD #########################
# Start sector of boot (first) partition
#BOOT_START=`sfdisk -J ${IMAGE} | grep img1 | sed -n 's/.*"start":*\([[:digit:]]*\).*/\1/p'`
# Amount of sectors of boot (first) partition
#BOOT_SIZE=`sfdisk -J ${IMAGE} | grep img1 | sed -n 's/.*"size":*\([[:digit:]]*\).*/\1/p'`
# Start sector of root (second) partition
#ROOT_START=`sfdisk -J ${IMAGE} | grep img2 | sed -n 's/.*"start":*\([[:digit:]]*\).*/\1/p'`
# Amount of sectors of root (second) partition
#ROOT_SIZE=`sfdisk -J ${IMAGE} | grep img2 | sed -n 's/.*"size":*\([[:digit:]]*\).*/\1/p'`
# Locations you'd like the partitions mounted
BOOT_PATH='/mnt/rpi-boot'
ROOTFS_PATH='/mnt/rpi-root'
# Calculate offsets for each partition
############# OLD #############
#offset_boot=$((${BOOT_START} * 512))
#sizelimit_boot=$((${BOOT_SIZE} * 512))
#offset_rootfs=$((${ROOT_START} * 512))
#sizelimit_rootfs=$((${ROOT_SIZE} * 512))
############# NEW #############
offset_boot=$[BOOT_START * 512]
sizelimit_boot=$[BOOT_SIZE * 512]
offset_rootfs=$[ROOT_START * 512]