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58 lines
1.8 KiB
Bash
Executable File
58 lines
1.8 KiB
Bash
Executable File
#! /usr/bin/env bash
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#
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# Script for image configure
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# @urpylka Artem Smirnov
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# @dvornikov-aa Andrey Dvornikov
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#
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# Exit immidiately on non-zero result
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set -e
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source echo_stamp.sh
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resize_fs() {
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# TEMPLATE: resize_fs <IMAGE_PATH> <SIZE>
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set +e
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# https://ru.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B7%D1%80%D0%B5%D0%B6%D1%91%D0%BD%D0%BD%D1%8B%D0%B9_%D1%84%D0%B0%D0%B9%D0%BB
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# https://raspberrypi.stackexchange.com/questions/13137/how-can-i-mount-a-raspberry-pi-linux-distro-image
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# fdisk -l 2017-11-29-raspbian-stretch-lite.img
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# https://www.stableit.ru/2011/05/losetup.html
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# -f : losetup сам выбрал loop (минуя занятые)
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# -P : losetup монтирует разделы в образе как отдельные подразделы,
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# например /dev/loop0p1 и /dev/loop0p2
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# --show : печатает имя устройства, например /dev/loop4
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# http://karelzak.blogspot.ru/2015/05/resize-by-sfdisk.html
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# ", +" : expand partition for volume size
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# -N 2 : select second partition for work
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# There is a risk that sfdisk will ask for a disk remount to update partition table
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# TODO: Check sfdisk exit code
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echo_stamp "Truncate image" \
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&& truncate -s$2 $1 \
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&& echo_stamp "Mount loop-image: $1" \
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&& local DEV_IMAGE=$(losetup -Pf $1 --show) \
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&& sleep 0.5 \
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&& echo ", +" | sfdisk -N 2 ${DEV_IMAGE} \
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&& sleep 0.5 \
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&& losetup -d ${DEV_IMAGE} \
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&& sleep 0.5 \
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&& local DEV_IMAGE=$(losetup -Pf $1 --show) \
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&& sleep 0.5 \
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&& echo_stamp "Check & repair filesystem after expand partition" \
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&& e2fsck -fvy "${DEV_IMAGE}p2" \
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&& echo_stamp "Expand filesystem" \
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&& resize2fs "${DEV_IMAGE}p2" \
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&& echo_stamp "Umount loop-image" \
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&& losetup -d ${DEV_IMAGE}
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set -e
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}
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resize_fs $1 $2
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