66 lines
2.3 KiB
Bash
66 lines
2.3 KiB
Bash
#!/bin/bash
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# Copyright 2015 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# Use this script if you want to allocate a new partition.
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# Ubuntu and CentOS are not configured the same way by Fuel. CentOS is doing
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# RAID 1 with /boot on all disks so we need to deal with that.
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# $1 -> The disk (example: "/dev/sdb")
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# $2 -> Size of the partition (use all free space if not provided)
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set -eux
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DISK=$1
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DISK_SIZE=${2:-""}
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PARTED="$(which parted 2>/dev/null) -s -m"
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if ${PARTED} "${DISK}" p | grep -q "unrecognised disk label"; then
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# We need to create a new label
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${PARTED} "${DISK}" mklabel gpt
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fi
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# We take the free space at the end of the disk.
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FREESPACE=$(${PARTED} "${DISK}" unit B p free | grep "free" | tail -1)
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if [[ -z "${FREESPACE}" ]]; then
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echo "Failed to find free space"
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exit 1
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fi
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BEGIN=$(echo "${FREESPACE}" | awk -F: '{print $2}')
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if [ -z "${DISK_SIZE}" ]; then
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END=$(echo "${FREESPACE}" | awk -F: '{print $3}')
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else
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END="$(( $(echo "$BEGIN" | rev | cut -c 2- | rev) + $(( DISK_SIZE*1024*1024*1024 )) ))B"
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fi
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# If you create a partition on a mounted disk, this command returns 1
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# So we need a different way to catch the error
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if ${PARTED} "${DISK}" unit B mkpart primary "${BEGIN}" "${END}" | grep -q "^Error"; then
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echo "Failed to create a new primary partition"
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exit 1
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fi
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# Get the ID of the partition and set flags to LVM
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# Like when we create a new partition, if you run this command on a mounted
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# FS the kernel failed to re-read the partition and the command returns 1
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# event in case of success.
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PARTID=$(${PARTED} "${DISK}" p | tail -1 | awk -F: '{print $1}')
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if ${PARTED} "${DISK}" set "${PARTID}" lvm on | grep -q "^Error"; then
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echo "Failed to set the lvm flag on partition ${PARTID}."
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exit 1
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fi
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