Merge branch 'feature-docs-rearrangement' into develop
[snf-image] / snf-image-helper / tasks / 40AddSwap.in
1 #! /bin/bash
2
3 # Copyright (C) 2011 GRNET S.A. 
4 #
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 # 02110-1301, USA.
19
20 ### BEGIN TASK INFO
21 # Provides:             AddSwap
22 # RunBefore:            EnforcePersonality
23 # RunAfter:             MountImage
24 # Short-Description:    Set up the swap partition and add an entry in fstab
25 ### END TASK INFO
26
27 set -e
28 . "@commondir@/common.sh"
29
30 trap task_cleanup EXIT
31 report_task_start
32
33 # Check if the task should be prevented from running.
34 check_if_excluded
35
36 if [ ! -d "$SNF_IMAGE_TARGET" ]; then
37     log_error "Target dir: \`$SNF_IMAGE_TARGET' is missing."
38 fi
39
40 if [ "$SNF_IMAGE_PROPERTY_OSFAMILY" != "linux" ]; then
41     exit 0
42 fi
43
44 if [ -z "$SNF_IMAGE_PROPERTY_SWAP" ]; then
45     warn "No swap partition defined"
46     exit 0
47 fi
48
49 if [[ "$SNF_IMAGE_PROPERTY_SWAP" =~ ^([0-9]+):[0-9]+$ ]]; then
50     swap_id=${BASH_REMATCH[1]}
51 else
52     log_error "SWAP property \`$SNF_IMAGE_PROPERTY_SWAP' is not valid"
53 fi
54
55 swap_dev="${SNF_IMAGE_DEV}${swap_id}"
56
57 if [ ! -b "$swap_dev" ]; then
58     log_error "Swap partition \`$swap_dev' is missing."
59 fi
60
61 $MKSWAP "$swap_dev"
62
63 UUID=$(cut -d" " -f2 <<< $($BLKID -s UUID "$swap_dev"))
64
65 if [ -f "$SNF_IMAGE_TARGET/etc/fstab" ]; then
66     echo -e "$UUID\tnone\tswap\tsw\t0\t0" >> "$SNF_IMAGE_TARGET/etc/fstab"
67 else
68     log_error "/etc/fstab file is missing"
69 fi
70
71 exit 0
72
73 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :