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#!/bin/sh
# Copyright 2018 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Contains dracut-specific logic for detecting disk, then calls appropriate
# library functions.
main() {
local disk="" partnum="" fs_type="" rootdev=""
# Remove 'block:' prefix and find the root device.
if ! rootdev=$(readlink -f "${root#block:}") || [ -z "${rootdev}" ]; then
echo "Unable to find root device."
return
fi
if ! out=$(split_partition "$rootdev"); then
echo "Failed to detect disk and partition info: ${out}"
return
fi
disk=${out%:*}
partnum=${out#*:}
if ! parted_needresize "$disk" "$partnum"; then
echo "Disk does not need resizing."
return
fi
echo "Resizing disk ${rootdev}"
if ! out=$(parted_fix_gpt); then
echo "$out"
return
fi
if parted --help | grep -q 'resizepart'; then
if ! out=$(parted_resizepart "$disk" "$partnum"); then
echo "Failed to resize partition: ${out}"
return
fi
else
echo "No 'resizepart' command in this parted, trying rm&&mkpart."
if ! out=$(parted_resize_mkpart "$disk" "$partnum"); then
echo "Failed to resize partition: ${out}"
return
fi
fi
if ! out=$(resize_filesystem "$rootdev"); then
echo "Failed to resize filesystem: ${out}"
return
fi
}
. /lib/expandfs-lib.sh
main
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