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root / snf-image-helper / tasks / 40AddSwap.in @ c50358a6

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#! /bin/bash
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# Copyright (C) 2011 GRNET S.A. 
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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### BEGIN TASK INFO
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# Provides:		AddSwap
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# RunBefore:            EnforcePersonality
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# RunAfter:             MountImage
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# Short-Description:    Set up the swap partition and add an entry in fstab
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### END TASK INFO
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set -e
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. "@commondir@/common.sh"
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trap task_cleanup EXIT
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report_task_start
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# Check if the task should be prevented from running.
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check_if_excluded
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if [ ! -d "$SNF_IMAGE_TARGET" ]; then
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    log_error "Target dir: \`$SNF_IMAGE_TARGET' is missing."
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fi
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if [ "$SNF_IMAGE_PROPERTY_OSFAMILY" != "linux" ]; then
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    exit 0
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fi
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if [ -z "$SNF_IMAGE_PROPERTY_SWAP" ]; then
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    warn "No swap partition defined"
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    exit 0
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fi
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if [[ "$SNF_IMAGE_PROPERTY_SWAP" =~ ^([0-9]+):[0-9]+$ ]]; then
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    swap_id=${BASH_REMATCH[1]}
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else
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    log_error "SWAP property \`$SNF_IMAGE_PROPERTY_SWAP' is not valid"
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fi
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swap_dev="${SNF_IMAGE_DEV}${swap_id}"
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if [ ! -b "$swap_dev" ]; then
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    log_error "Swap partition \`$swap_dev' is missing."
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fi
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$MKSWAP "$swap_dev"
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UUID=$(cut -d" " -f2 <<< $($BLKID -s UUID "$swap_dev"))
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if [ -f "$SNF_IMAGE_TARGET/etc/fstab" ]; then
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    echo -e "$UUID\tnone\tswap\tsw\t0\t0" >> "$SNF_IMAGE_TARGET/etc/fstab"
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else
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    log_error "/etc/fstab file is missing"
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fi
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exit 0
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# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :