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32 lines
1.1 KiB
Bash
32 lines
1.1 KiB
Bash
#!/bin/bash -x
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# Resize rootfs and its partition on the rpi SD card (or external USB
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# disk if possible, e.g. with Raspberry Pi OS) to maximum size.
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# To be used by /etc/systemd/system/iiab-rpi-root-resize.service on boot.
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# Only resizes if /.resize-rootfs exists.
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# Assumes root is last partition.
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if [ -f /.resize-rootfs ]; then
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echo "$0: maximizing rootfs partion"
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if [ -x /usr/bin/raspi-config ]; then
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# 2022-02-17: Works in many more situations, e.g. with USB disks (not
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# just microSD cards). IF ONLY THIS ALSO WORKED ON Ubuntu/Mint/etc !
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raspi-config --expand-rootfs
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else
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# Assumes sd card style partition name like <device>p<partition number>
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# Only works on F22 + where resizepart command exists
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# Calculate root partition
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root_part=`lsblk -aP -o NAME,MOUNTPOINT | grep 'MOUNTPOINT="/"' | awk -F\" '{ print $2 }'`
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root_dev=${root_part:0:-2}
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root_part_no=${root_part: (-1)}
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# Resize partition
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growpart /dev/$root_dev $root_part_no
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resize2fs /dev/$root_part
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fi
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rm /.resize-rootfs
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fi
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