system-config/make_swap.sh
Monty Taylor 61675716c4 Remove references to old volume from fstab
On HP Cloud, /dev/vdb winds up in fstab, which leads us to having
dupliate entries for /mnt.

Change-Id: I2c0914fdcf149cd823d4c9833a6e21d2bca8a6e7
2014-09-05 18:05:29 +00:00

45 lines
1.7 KiB
Bash

#!/bin/bash
# Copyright 2013 OpenStack Foundation
#
# 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.
# If we're running on a cloud server with no swap, fix that:
if [ `grep SwapTotal /proc/meminfo | awk '{ print $2; }'` -eq 0 ]; then
if [ -b /dev/vdb ]; then
DEV='/dev/vdb'
elif [ -b /dev/xvde ]; then
DEV='/dev/xvde'
fi
if [ -n "$DEV" ]; then
MEMKB=`grep MemTotal /proc/meminfo | awk '{print $2; }'`
# Use the nearest power of two in MB as the swap size.
# This ensures that the partitions below are aligned properly.
MEM=`python -c "import math ; print 2**int(round(math.log($MEMKB/1024, 2)))"`
umount ${DEV}
parted ${DEV} --script -- mklabel msdos
parted ${DEV} --script -- mkpart primary linux-swap 1 ${MEM}
parted ${DEV} --script -- mkpart primary ext2 ${MEM} -1
mkswap ${DEV}1
mkfs.ext4 ${DEV}2
swapon ${DEV}1
mount ${DEV}2 /mnt
rsync -a /opt/ /mnt/
umount /mnt
perl -nle "m,${DEV}, || print" -i /etc/fstab
echo "${DEV}1 none swap sw 0 0" >> /etc/fstab
echo "${DEV}2 /opt ext4 errors=remount-ro,barrier=0 0 2" >> /etc/fstab
mount -a
fi
fi