Synnefo » snf-image

#! /bin/bash

# Copyright (C) 2011 GRNET S.A. 

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

### BEGIN TASK INFO

# Provides:		AddSwap

# RunBefore:            UmountImage

# RunAfter:             MountImage

# Short-Description:    Set up the swap partition and add an entry in fstab

### END TASK INFO

set -e

. "@commondir@/common.sh"

# Check if the task should be prevented from running.

check_if_excluded

if [ ! -d "$SNF_IMAGE_TARGET" ]; then

    log_error "Target dir: \`$SNF_IMAGE_TARGET' is missing."

fi

if [ "$SNF_IMAGE_PROPERTY_OSFAMILY" != "linux" ]; then

    exit 0

fi

if [ -z "$SNF_IMAGE_PROPERTY_SWAP" ]; then

    warn "No swap partition defined"

    exit 0

fi

if [[ "$SNF_IMAGE_PROPERTY_SWAP" =~ ^([0-9]+):[0-9]+$ ]]; then

    swap_id=${BASH_REMATCH[1]}

else

    log_error "SWAP property \`$SNF_IMAGE_PROPERTY_SWAP' is not valid"

fi

swap_dev="${SNF_IMAGE_DEV}${swap_id}"

if [ ! -b "$swap_dev" ]; then

    log_error "Swap partition \`$swap_dev' is missing."

fi

$MKSWAP "$swap_dev"

UUID=$(cut -d" " -f2 <<< $($BLKID -s UUID "$swap_dev"))

if [ -f "$SNF_IMAGE_TARGET/etc/fstab" ]; then

    echo -e "$UUID\tnone\tswap\tsw\t0\t0" >> "$SNF_IMAGE_TARGET/etc/fstab"

else

    log_error "/etc/fstab file is missing"

fi

exit 0

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