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
27 # POSSIBILITY OF SUCH DAMAGE.
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, exclude_task
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]
59 def sysprep_fix_acpid(self, print_header=True):
60 """Replace acpid powerdown action scripts to immediately shutdown the
61 system without checking if a GUI is running.
65 output('Fixing acpid powerdown action')
67 powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
68 'shutdown -h now \"Power button pressed\"\n'
70 events_dir = '/etc/acpi/events'
71 if not self.g.is_dir(events_dir):
72 warn("No acpid event directory found")
75 event_exp = re.compile('event=(.+)', re.I)
76 action_exp = re.compile('action=(.+)', re.I)
77 for f in self.g.readdir(events_dir):
81 fullpath = "%s/%s" % (events_dir, f['name'])
84 for line in self.g.cat(fullpath).splitlines():
85 m = event_exp.match(line)
89 m = action_exp.match(line)
94 if event.strip() == "button[ /]power":
96 if not self.g.is_file(action):
97 warn("Acpid action file: %s does not exist" % action)
99 self.g.copy_file_to_file(action, \
100 "%s.orig.snf-image-creator-%d" % (action, time.time()))
101 self.g.write(action, powerbtn_action)
104 warn("Acpid event file %s does not contain and action")
106 elif event.strip() == ".*":
107 warn("Found action `.*'. Don't know how to handle this." \
108 " Please edit \%s' image file manually to make the " \
109 "system immediatelly shutdown when an power button acpi " \
110 "event occures" % action)
113 def sysprep_persistent_net_rules(self, print_header=True):
114 """Remove udev rules that will keep network interface names persistent
115 after hardware changes and reboots. Those rules will be created again
116 the next time the image runs.
120 output('Removing persistent network interface names')
122 rule_file = '/etc/udev/rules.d/70-persistent-net.rules'
123 if self.g.is_file(rule_file):
126 def sysprep_persistent_devs(self, print_header=True):
127 """Scan fstab and grub configuration files and replace all
128 non-persistent device appearences with UUIDs.
132 output('Replacing fstab & grub non-persistent device appearences')
134 # convert all devices in fstab to persistent
135 persistent_root = self._persistent_fstab()
137 # convert all devices in grub1 to persistent
138 self._persistent_grub1(persistent_root)
140 def _persistent_grub1(self, new_root):
141 if self.g.is_file('/boot/grub/menu.lst'):
142 grub1 = '/boot/grub/menu.lst'
143 elif self.g.is_file('/etc/grub.conf'):
144 grub1 = '/etc/grub.conf'
148 self.g.aug_init('/', 0)
150 roots = self.g.aug_match('/files%s/title[*]/kernel/root' % grub1)
152 dev = self.g.aug_get(root)
153 if not self.is_persistent(dev):
154 # This is not always correct. Grub may contain root entries
155 # for other systems, but we only support 1 OS per hard
156 # disk, so this shouldn't harm.
157 self.g.aug_set(root, new_root)
162 def _persistent_fstab(self):
163 mpoints = self.g.mountpoints()
164 if len(mpoints) == 0:
165 pass # TODO: error handling
167 device_dict = dict([[mpoint, dev] for dev, mpoint in mpoints])
171 fstab = self.g.cat('/etc/fstab')
172 for line in fstab.splitlines():
174 line, dev, mpoint = self._convert_fstab_line(line, device_dict)
175 new_fstab += "%s\n" % line
180 self.g.write('/etc/fstab', new_fstab)
182 pass # TODO: error handling
186 def _convert_fstab_line(self, line, devices):
188 line = line.split('#')[0].strip()
194 warn("Detected abnormal entry in fstab")
200 if not self.is_persistent(dev):
201 if mpoint in devices:
202 dev = "UUID=%s" % self.get_uuid(devices[mpoint])
205 # comment out the entry
206 entry[0] = "#%s" % dev
207 return " ".join(entry), dev, mpoint
209 return orig, dev, mpoint
211 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :