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# Copyright (C) 2012-2013 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import os
import shutil
import time
import cliapp
import morphlib
from morphlib.builder2 import DiskImageBuilder
class SyslinuxDiskBuilder(DiskImageBuilder): # pragma: no cover
system_kind = 'syslinux-disk'
def _install_mbr(self, arch, image_name):
self.app.status(msg='Installing syslinux mbr on disk image %(fname)s',
fname=image_name, chatty=True)
if arch not in ('x86', 'x86_64'):
return
with self.build_watch('install-mbr'):
mbr_installed = False
for path in self.app.settings['syslinux-mbr-search-paths']:
if os.path.exists(path):
self.app.runcmd(['dd', 'if=' + path, 'of=' + image_name,
'conv=notrunc'])
mbr_installed = True
break
# A flag, rather than an else statement is used, since it must
# fail if the search path is empty as well
if not mbr_installed:
raise morphlib.Error(
"No syslinux mbr found in search paths: %s" %
repr(self.app.settings['syslinux-mbr-search-paths']))
def _create_bootloader_config(self, path):
self.app.status(msg='Creating extlinux.conf in %(path)s',
path=path, chatty=True)
with self.build_watch('create-extlinux-config'):
config = os.path.join(path, 'extlinux.conf')
with open(config, 'w') as f:
f.write('default linux\n')
f.write('timeout 1\n')
f.write('label linux\n')
f.write('kernel /boot/vmlinuz\n')
f.write('append root=/dev/sda1 rootflags=subvol=factory-run '
'init=/sbin/init rw\n')
def _install_boot_files(self, arch, sourcefs, targetfs):
with self.build_watch('install-boot-files-extlinux'):
if arch in ('x86', 'x86_64'):
self.app.status(msg='Installing extlinux.conf', chatty=True)
shutil.copy2(os.path.join(sourcefs, 'extlinux.conf'),
os.path.join(targetfs, 'extlinux.conf'))
super(SyslinuxDiskBuilder, self)._install_boot_files(arch, sourcefs,
targetfs)
def _install_bootloader(self, path):
self.app.status(msg='Installing extlinux to %(path)s',
path=path, chatty=True)
with self.build_watch('install-bootloader'):
self.app.runcmd(['extlinux', '--install', path])
# FIXME this hack seems to be necessary to let extlinux finish
self.app.runcmd(['sync'])
time.sleep(2)
class SyslinuxDiskBuilderPlugin(cliapp.Plugin):
def enable(self):
self.app.settings.string_list(
['syslinux-mbr-search-paths'],
'A list of files to search for to use as the syslinux mbr',
default=['/usr/lib/extlinux/mbr.bin',
'/usr/share/syslinux/mbr.bin'],
group='Build Options')
self.app.system_kind_builder_factory.register(SyslinuxDiskBuilder)
def disable(self):
pass
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