54 lines
1.4 KiB
Bash
Executable File
54 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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set -e
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#
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# List the soft prerequisites here. This is a space separated list of
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# names, of scripts that are in the same directory as this one, that
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# must be run before this one can be.
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#
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PREREQS=""
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case $1 in
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prereqs) echo "$PREREQS"; exit 0;;
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esac
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. /scripts/functions
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# Given the root partition, get the underlying device and partition number
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rootpart=$(realpath $ROOT)
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rootpart_nr=$(blkid -sPART_ENTRY_NUMBER -o value -p $rootpart)
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rootdev="/dev/$(lsblk -no pkname "$rootpart")"
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# Parted will detect if the GPT label is messed up and fix it
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# automatically, we just need to tell it to do so.
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parted -s $rootdev print 2>&1 | grep -z "fix the GPT" && {
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echo "Fix" | parted ---pretend-input-tty $rootdev print
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}
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# Check if there's free space at the end of the device
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free_space="$(parted -m -s $rootdev print free | tail -n1 | grep free)"
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if test -z "$free_space"; then
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# Great, we already resized; nothing left to do!
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exit 0
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fi
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log_begin_msg "$0 resizing $ROOT"
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# Unmount for safety
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umount "${rootmnt}"
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# Expand the partition size to fill the entire device
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parted -s $rootdev resizepart $rootpart_nr 100%
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wait_for_udev 5
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# Now resize the filesystem
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partprobe $rootdev
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resize2fs $rootpart
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# Remount root
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if ! mount -r ${FSTYPE:+-t "${FSTYPE}"} ${ROOTFLAGS} "${ROOT}" "${rootmnt?}"; then
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panic "Failed to mount ${ROOT} as root file system."
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fi
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log_end_msg
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