1 # Copyright 2012 GRNET S.A. All rights reserved.
3 # Redistribution and use in source and binary forms, with or
4 # without modification, are permitted provided that the following
7 # 1. Redistributions of source code must retain the above
8 # copyright notice, this list of conditions and the following
11 # 2. Redistributions in binary form must reproduce the above
12 # copyright notice, this list of conditions and the following
13 # disclaimer in the documentation and/or other materials
14 # provided with the distribution.
16 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
17 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
20 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
26 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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29 # The views and conclusions contained in the software and
30 # documentation are those of the authors and should not be
31 # interpreted as representing official policies, either expressed
32 # or implied, of GRNET S.A.
34 from image_creator.os_type.unix import Unix, sysprep
35 from image_creator.util import warn, output
42 def __init__(self, rootdev, ghandler):
43 super(Linux, self).__init__(rootdev, ghandler)
45 self._persistent = re.compile('/dev/[hsv]d[a-z][1-9]*')
47 def is_persistent(self, dev):
48 return not self._persistent.match(dev)
50 def get_uuid(self, dev):
52 return self._uuid[dev]
54 for attr in self.g.blkid(dev):
56 self._uuid[dev] = attr[1]
60 def fix_acpid(self, print_header=True):
61 """Replace acpid powerdown action scripts to immediately shutdown the
62 system without checking if a GUI is running.
66 output('Fixing acpid powerdown action')
68 powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
69 'shutdown -h now \"Power button pressed\"\n'
71 events_dir = '/etc/acpi/events'
72 if not self.g.is_dir(events_dir):
73 warn("No acpid event directory found")
76 event_exp = re.compile('event=(.+)', re.I)
77 action_exp = re.compile('action=(.+)', re.I)
78 for f in self.g.readdir(events_dir):
82 fullpath = "%s/%s" % (events_dir, f['name'])
85 for line in self.g.cat(fullpath).splitlines():
86 m = event_exp.match(line)
90 m = action_exp.match(line)
95 if event.strip() == "button[ /]power":
97 if not self.g.is_file(action):
98 warn("Acpid action file: %s does not exist" % action)
100 self.g.copy_file_to_file(action, \
101 "%s.orig.snf-image-creator-%d" % (action, time.time()))
102 self.g.write(action, powerbtn_action)
105 warn("Acpid event file %s does not contain and action")
107 elif event.strip() == ".*":
108 warn("Found action `.*'. Don't know how to handle this." \
109 " Please edit \%s' image file manually to make the " \
110 "system immediatelly shutdown when an power button acpi " \
111 "event occures" % action)
115 def persistent_net_rules(self, print_header=True):
116 """Remove udev rules that will keep network interface names persistent
117 after hardware changes and reboots. Those rules will be created again
118 the next time the image runs.
122 output('Removing persistent network interface names')
124 rule_file = '/etc/udev/rules.d/70-persistent-net.rules'
125 if self.g.is_file(rule_file):
129 def persistent_devs(self, print_header=True):
130 """Scan fstab & grub configuration files and replace all non-persistent
131 device appearences with UUIDs.
135 output('Replacing fstab & grub non-persistent device appearences')
137 # convert all devices in fstab to persistent
138 persistent_root = self._persistent_fstab()
140 # convert all devices in grub1 to persistent
141 self._persistent_grub1(persistent_root)
143 def _persistent_grub1(self, new_root):
144 if self.g.is_file('/boot/grub/menu.lst'):
145 grub1 = '/boot/grub/menu.lst'
146 elif self.g.is_file('/etc/grub.conf'):
147 grub1 = '/etc/grub.conf'
151 self.g.aug_init('/', 0)
153 roots = self.g.aug_match('/files%s/title[*]/kernel/root' % grub1)
155 dev = self.g.aug_get(root)
156 if not self.is_persistent(dev):
157 # This is not always correct. Grub may contain root entries
158 # for other systems, but we only support 1 OS per hard
159 # disk, so this shouldn't harm.
160 self.g.aug_set(root, new_root)
165 def _persistent_fstab(self):
166 mpoints = self.g.mountpoints()
167 if len(mpoints) == 0:
168 pass # TODO: error handling
170 device_dict = dict([[mpoint, dev] for dev, mpoint in mpoints])
174 fstab = self.g.cat('/etc/fstab')
175 for line in fstab.splitlines():
177 line, dev, mpoint = self._convert_fstab_line(line, device_dict)
178 new_fstab += "%s\n" % line
183 self.g.write('/etc/fstab', new_fstab)
185 pass # TODO: error handling
189 def _convert_fstab_line(self, line, devices):
191 line = line.split('#')[0].strip()
197 warn("Detected abnormal entry in fstab")
203 if not self.is_persistent(dev):
204 if mpoint in devices:
205 dev = "UUID=%s" % self.get_uuid(devices[mpoint])
208 # comment out the entry
209 entry[0] = "#%s" % dev
210 return " ".join(entry), dev, mpoint
212 return orig, dev, mpoint
214 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :