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