27 lines
699 B
Bash
27 lines
699 B
Bash
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#!/bin/sh
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# Possibly resize root device (partition, filesystem), if underlying device was
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# enlarged.
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set -e
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# if underlying root device is read-only, don't do anything
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if [ "$(blockdev --getro /dev/xvda)" -eq "1" ]; then
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echo "xvda is read-only, not resizing" >&2
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exit 0
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fi
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sysfs_root_dev="/sys/dev/block/$(mountpoint -d /)"
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sysfs_xvda="/sys/class/block/xvda"
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# if root filesystem use already (almost) the whole dis
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non_rootfs_data=$(( 250 * 1024 * 2 ))
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if [ "$(cat "$sysfs_xvda/size")" -lt \
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$(( non_rootfs_data + $(cat "$sysfs_root_dev/size") )) ]; then
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echo "root filesystem already at the right size" >&2
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exit 0
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fi
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# resize needed, do it
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/usr/lib/qubes/resize-rootfs
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