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
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32 # or implied, of GRNET S.A.
34 from image_creator.os_type.unix import Unix
35 from image_creator.util import warn
37 from clint.textui import puts, indent
44 def __init__(self, rootdev, ghandler):
45 super(Linux, self).__init__(rootdev, ghandler)
47 self._persistent = re.compile('/dev/[hsv]d[a-z][1-9]*')
49 def is_persistent(self, dev):
50 return not self._persistent.match(dev)
52 def get_uuid(self, dev):
54 return self._uuid[dev]
56 for attr in self.g.blkid(dev):
58 self._uuid[dev] = attr[1]
61 def sysprep_acpid(self, print_header=True):
62 """Replace acpid powerdown action scripts to immediately shutdown the
63 system without checking if a GUI is running.
67 print 'Fixing acpid powerdown action'
69 powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
70 'shutdown -h now \"Power button pressed\"\n'
72 events_dir = '/etc/acpi/events'
73 if not self.g.is_dir(events_dir):
74 warn("No acpid event directory found")
77 event_exp = re.compile('event=(.+)', re.I)
78 action_exp = re.compile('action=(.+)', re.I)
79 for f in self.g.readdir(events_dir):
83 fullpath = "%s/%s" % (events_dir, f['name'])
86 for line in self.g.cat(fullpath).splitlines():
87 m = event_exp.match(line)
91 m = action_exp.match(line)
96 if event.strip() == "button[ /]power":
98 if not self.g.is_file(action):
99 warn("Acpid action file: %s does not exist" % action)
101 self.g.copy_file_to_file(action, \
102 "%s.orig.snf-image-creator-%d" % (action, time.time()))
103 self.g.write(action, powerbtn_action)
106 warn("Acpid event file %s does not contain and action")
108 elif event.strip() == ".*":
109 warn("Found action `.*'. Don't know how to handle this." \
110 " Please edit \%s' image file manually to make the " \
111 "system immediatelly shutdown when an power button acpi " \
112 "event occures" % action)
115 def sysprep_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 puts('Removing persistent network interface names')
124 rule_file = '/etc/udev/rules.d/70-persistent-net.rules'
125 if self.g.is_file(rule_file):
128 def sysprep_persistent_devs(self, print_header=True):
129 """Scan fstab and grub configuration files and replace all
130 non-persistent device appearences with UUIDs.
134 puts('Replacing fstab & grub non-persistent device appearences')
136 # convert all devices in fstab to persistent
137 persistent_root = self._persistent_fstab()
139 # convert all devices in grub1 to persistent
140 self._persistent_grub1(persistent_root)
142 def _persistent_grub1(self, new_root):
143 if self.g.is_file('/boot/grub/menu.lst'):
144 grub1 = '/boot/grub/menu.lst'
145 elif self.g.is_file('/etc/grub.conf'):
146 grub1 = '/etc/grub.conf'
150 self.g.aug_init('/', 0)
152 roots = self.g.aug_match('/files%s/title[*]/kernel/root' % grub1)
154 dev = self.g.aug_get(root)
155 if not self.is_persistent(dev):
156 # This is not always correct. Grub may contain root entries
157 # for other systems, but we only support 1 OS per hard
158 # disk, so this shouldn't harm.
159 self.g.aug_set(root, new_root)
164 def _persistent_fstab(self):
165 mpoints = self.g.mountpoints()
166 if len(mpoints) == 0:
167 pass # TODO: error handling
169 device_dict = dict([[mpoint, dev] for dev, mpoint in mpoints])
173 fstab = self.g.cat('/etc/fstab')
174 for line in fstab.splitlines():
176 line, dev, mpoint = self._convert_fstab_line(line, device_dict)
177 new_fstab += "%s\n" % line
182 self.g.write('/etc/fstab', new_fstab)
184 pass # TODO: error handling
188 def _convert_fstab_line(self, line, devices):
190 line = line.split('#')[0].strip()
196 warn("Detected abnormal entry in fstab")
202 if not self.is_persistent(dev):
203 if mpoint in devices:
204 dev = "UUID=%s" % self.get_uuid(devices[mpoint])
207 # comment out the entry
208 entry[0] = "#%s" % dev
209 return " ".join(entry), dev, mpoint
211 return orig, dev, mpoint
213 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :