'Create an apt source based on the distribution and mirror selected.')
self.settings.boolean(
['mbr'],
- 'Run install-mbr (no longer done by default)')
+ 'Run install-mbr (default if extlinux used)')
self.settings.boolean(
['grub'],
'Install and configure grub2 - disables extlinux.')
self.settings.boolean(
['sparse'],
- 'Dont fill the image with zeros to keep a sparse disk image',
+ 'Do not fill the image with zeros to keep a sparse disk image',
default=False)
self.settings.boolean(
['pkglist'],
if self.settings['image']:
self.create_empty_image()
self.partition_image()
- if self.settings['mbr']:
+ if self.settings['mbr'] or self.settings['extlinux']:
self.install_mbr()
(rootdev, bootdev) = self.setup_kpartx()
self.mkfs(rootdev, fstype=roottype)
str(self.settings['size'])])
def partition_image(self):
+ """
+ Uses fat16 (msdos) partitioning by default, use part-type to change.
+ If bootoffset is specified, the first actual partition
+ starts at that offset to allow customisation scripts to
+ put bootloader images into the space, e.g. u-boot.
+ """
self.message('Creating partitions')
self.runcmd(['parted', '-s', self.settings['image'],
- 'mklabel', 'msdos'])
+ 'mklabel', self.settings['part-type']])
+ partoffset = 0
+ bootsize = 0
+ if self.settings['bootoffset'] and self.settings['bootoffset'] is not '0':
+ # turn v.small offsets into something at least possible to create.
+ if self.settings['bootoffset'] < 1048576:
+ partoffset = 1
+ logging.info(
+ "Setting bootoffset %smib to allow for %s bytes",
+ partoffset, self.settings['bootoffset'])
+ else:
+ partoffset = self.settings['bootoffset'] / (1024 * 1024)
+ self.message("Using bootoffset: %smib %s bytes" % (partoffset, self.settings['bootoffset']))
if self.settings['bootsize'] and self.settings['bootsize'] is not '0%':
- bootsize = str(self.settings['bootsize'] / (1024 * 1024))
+ bootsize = self.settings['bootsize'] / (1024 * 1024)
+ bootsize += partoffset
+ self.message("Using bootsize %smib: %s bytes" % (bootsize, self.settings['bootsize']))
+ logging.debug("Starting boot partition at %sMb", bootsize)
+ self.runcmd(['parted', '-s', self.settings['image'],
+ 'mkpart', 'primary', 'fat16', str(partoffset), str(bootsize)])
+ if partoffset == 0:
self.runcmd(['parted', '-s', self.settings['image'],
- 'mkpart', 'primary', 'fat16', '0%', bootsize])
+ 'mkpart', 'primary', '0%', '100%'])
else:
- bootsize = '0%'
- self.runcmd(['parted', '-s', self.settings['image'],
- 'mkpart', 'primary', bootsize, '100%'])
+ logging.debug("Starting root partition at %sMb", partoffset)
+ self.runcmd(['parted', '-s', self.settings['image'],
+ 'mkpart', 'primary', str(bootsize), '100%'])
self.runcmd(['parted', '-s', self.settings['image'],
'set', '1', 'boot', 'on'])
if os.path.exists("/sbin/install-mbr"):
self.message('Installing MBR')
self.runcmd(['install-mbr', self.settings['image']])
+ else:
+ msg = "mbr enabled but /sbin/install-mbr not found" \
+ " - please install the mbr package."
+ raise cliapp.AppException(msg)
def setup_kpartx(self):
+ bootindex = None
out = self.runcmd(['kpartx', '-avs', self.settings['image']])
if self.settings['bootsize']:
bootindex = 0
else:
rootindex = 0
parts = 1
- boot = None
+ boot = None
devices = [line.split()[2]
for line in out.splitlines()
if line.startswith('add map ')]
if len(devices) != parts:
- raise cliapp.AppException('Surprising number of partitions')
+ msg = 'Surprising number of partitions'
+ logging.debug("%s: devices=%s parts=%s", msg, devices, parts)
+ raise cliapp.AppException(msg)
root = '/dev/mapper/%s' % devices[rootindex]
if self.settings['bootsize']:
boot = '/dev/mapper/%s' % devices[bootindex]
msg = "(%s)" % self.settings['variant'] if self.settings['variant'] else ''
self.message('Debootstrapping %s %s' % (self.settings['distribution'], msg))
- if self.settings['foreign']:
- necessary_packages = []
- else:
- necessary_packages = ['acpid']
+ include = self.settings['package']
- if self.settings['grub']:
- necessary_packages.append('grub2')
+ if not self.settings['foreign']:
+ include.append('acpid')
- include = self.settings['package']
+ if self.settings['grub']:
+ include.append('grub2')
if not self.settings['no-kernel']:
if self.settings['arch'] == 'i386':
include.append('sudo')
args = ['debootstrap', '--arch=%s' % self.settings['arch']]
- if self.settings['package'] and len(necessary_packages) > 0:
+
+ if self.settings['package']:
args.append(
- '--include=%s' % ','.join(necessary_packages + include))
+ '--include=%s' % ','.join(include))
if self.settings['foreign']:
args.append('--foreign')
if self.settings['variant']:
conf = os.path.join(rootdir, 'extlinux.conf')
logging.debug('configure extlinux %s', conf)
- # python multiline string substitution is just ugly.
- # use an external file or live with the mangling, no point in
- # mangling the string to remove spaces just to keep it pretty in source.
- f = open(conf, 'w')
- f.write('''
+ kserial = 'console=ttyS0,115200' if self.settings['serial-console'] else ''
+ extserial = 'serial 0 115200' if self.settings['serial-console'] else ''
+ msg = '''
default linux
timeout 1
'kernel': kernel_image, # pylint: disable=bad-continuation
'initrd': initrd_image, # pylint: disable=bad-continuation
'uuid': uuid, # pylint: disable=bad-continuation
- 'kserial': # pylint: disable=bad-continuation
- 'console=ttyS0,115200' if self.settings['serial-console'] else '', # pylint: disable=bad-continuation
- 'extserial': 'serial 0 115200' if self.settings['serial-console'] else '', # pylint: disable=bad-continuation
- }) # pylint: disable=bad-continuation
- f.close() # pylint: disable=bad-continuation
+ 'kserial': kserial, # pylint: disable=bad-continuation
+ 'extserial': extserial, # pylint: disable=bad-continuation
+ } # pylint: disable=bad-continuation
+ logging.debug("extlinux config:\n%s", msg)
+
+ # python multiline string substitution is just ugly.
+ # use an external file or live with the mangling, no point in
+ # mangling the string to remove spaces just to keep it pretty in source.
+ f = open(conf, 'w')
+ f.write(msg)
self.runcmd(['extlinux', '--install', rootdir])
self.runcmd(['sync'])
return
script = example
self.message('Running customize script %s' % script)
+ logging.info("rootdir=%s image=%s", rootdir, self.settings['image'])
with open('/dev/tty', 'w') as tty:
- cliapp.runcmd([script, rootdir], stdout=tty, stderr=tty)
+ cliapp.runcmd([script, rootdir, self.settings['image']], stdout=tty, stderr=tty)
def create_tarball(self, rootdir):
# Create a tarball of the disk's contents
def chown(self):
# Change image owner after completed build
+ if self.settings['image']:
+ filename = self.settings['image']
+ elif self.settings['tarball']:
+ filename = self.settings['tarball']
+ else:
+ return
self.message("Changing owner to %s" % self.settings["owner"])
- subprocess.call(["chown",
- self.settings["owner"],
- self.settings["image"]])
+ subprocess.call(["chown", self.settings["owner"], filename])
def list_installed_pkgs(self, rootdir):
# output the list of installed packages for sources identification
self.message("Creating a list of installed binary package names")
out = self.runcmd(['chroot', rootdir,
- 'dpkg-query', '-W' "-f='${Package}.deb\n'"])
+ 'dpkg-query', '-W', "-f='${Package}.deb\n'"])
with open('dpkg.list', 'w') as dpkg:
dpkg.write(out)
line = '#deb-src %s %s main\n' % (mirror, self.settings['distribution'])
f.write(line)
f.close()
+ # ensure the apt sources have valid lists
+ self.runcmd(['chroot', rootdir, 'apt-get', 'update'])
if __name__ == '__main__':
VmDebootstrap(version=__version__).run()