['part-type'],
'Partition type to use for this image',
default='msdos')
+ self.settings.string(
+ ['roottype'],
+ 'specify file system type for /',
+ default='ext4')
+ self.settings.bytesize(
+ ['swap'],
+ 'create swap space of size SIZE (min 256Mb)')
self.settings.string(
['foreign'],
'set up foreign debootstrap environment using provided program (ie binfmt handler)')
'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'],
rootdir = None
try:
rootdev = None
- roottype = 'ext4'
+ roottype = self.settings['roottype']
bootdev = None
boottype = None
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()
+ (rootdev, bootdev, swapdev) = self.setup_kpartx()
+ if self.settings['swap']:
+ self.message("Creating swap space")
+ self.runcmd(['mkswap', swapdev])
self.mkfs(rootdev, fstype=roottype)
rootdir = self.mount(rootdev)
if bootdev:
'mklabel', self.settings['part-type']])
partoffset = 0
bootsize = 0
+ extent = '100%'
+ swap = 256 * 1024 * 1024
+ if self.settings['swap']:
+ if self.settings['swap'] > swap:
+ swap = self.settings['swap']
+ else:
+ # minimum 256Mb as default qemu ram is 128Mb
+ logging.debug("Setting minimum 256Mb swap space")
+ extent = "%s%%" % int(100 * (self.settings['size'] - swap) / self.settings['size'])
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:
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:
+ logging.debug("Starting root partition at %sMb", partoffset)
self.runcmd(['parted', '-s', self.settings['image'],
- 'mkpart', 'primary', '0%', '100%'])
+ 'mkpart', 'primary', str(bootsize), extent])
else:
- logging.debug("Starting root partition at %sMb", partoffset)
self.runcmd(['parted', '-s', self.settings['image'],
- 'mkpart', 'primary', str(bootsize), '100%'])
+ 'mkpart', 'primary', '0%', extent])
self.runcmd(['parted', '-s', self.settings['image'],
'set', '1', 'boot', 'on'])
+ if self.settings['swap']:
+ logging.debug("Creating swap partition")
+ self.runcmd(['parted', '-s', self.settings['image'],
+ 'mkpart', 'primary', 'linux-swap', extent, '100%'])
def update_initramfs(self, rootdir):
cmd = os.path.join('usr', 'sbin', 'update-initramfs')
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
+ swapindex = None
out = self.runcmd(['kpartx', '-avs', self.settings['image']])
- if self.settings['bootsize']:
+ if self.settings['bootsize'] and self.settings['swap']:
bootindex = 0
rootindex = 1
+ swapindex = 2
+ parts = 3
+ elif self.settings['bootsize']:
+ bootindex = 0
+ rootindex = 1
+ parts = 2
+ elif self.settings['swap']:
+ rootindex = 0
+ swapindex = 1
parts = 2
else:
rootindex = 0
parts = 1
boot = None
+ swap = 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]
- return root, boot
+ if self.settings['swap']:
+ swap = '/dev/mapper/%s' % devices[swapindex]
+ return root, boot, swap
def mkfs(self, device, fstype):
self.message('Creating filesystem %s' % fstype)
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']:
args.append(
'--include=%s' % ','.join(include))
- if len(necessary_packages) > 0:
- args.append(
- '--include=%s' % ','.join(necessary_packages))
if self.settings['foreign']:
args.append('--foreign')
if self.settings['variant']:
f.write('%s / %s errors=remount-ro 0 1\n' % (rootdevstr, roottype))
if bootdevstr:
f.write('%s /boot %s errors=remount-ro 0 2\n' % (bootdevstr, boottype))
+ if self.settings['swap']:
+ f.write("/dev/sda3 swap swap defaults 0 0\n")
+ elif self.settings['swap']:
+ f.write("/dev/sda2 swap swap defaults 0 0\n")
def install_debs(self, rootdir):
if not self.settings['custom-package']:
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'])
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', '-qq', 'update'])
if __name__ == '__main__':
VmDebootstrap(version=__version__).run()
projects / forks / vmdebootstrap.git / blobdiff