def create(self, img_file, force=True, options=None):
# make sure we are allowed to overwrite existing file
if os.path.exists(img_file):
if not force:
raise IOError("can't overwrite existing image file")
# not writeable?
if not os.access(img_file, os.W_OK):
raise IOError("can't write image file")
# detect type
t = self.detect_type(img_file, options)
if t == None:
raise IOError("can't detect type of image file")
if t == self.TYPE_RDISK:
raise IOError("can't create rdisk. use rdbtool first")
# create blkdev
if t == self.TYPE_ADF:
blkdev = ADFBlockDevice(img_file)
blkdev.create()
else:
# determine geometry from size or chs
geo = DiskGeometry()
if not geo.setup(options):
raise IOError("can't determine geometry of HDF image file")
blkdev = HDFBlockDevice(img_file)
blkdev.create(geo)
return blkdev
def create(self, img_file, force=True, options=None, fobj=None):
if fobj is None:
# make sure we are allowed to overwrite existing file
if os.path.exists(img_file):
if not force:
raise IOError("can't overwrite existing image file")
# not writeable?
if not os.access(img_file, os.W_OK):
raise IOError("can't write image file")
# detect type
t = self.detect_type(img_file, fobj, options)
if t == None:
raise IOError("can't detect type of image file")
if t == self.TYPE_RDISK:
raise IOError("can't create rdisk. use rdbtool first")
# create blkdev
if t == self.TYPE_ADF:
blkdev = ADFBlockDevice(img_file, fobj=fobj)
blkdev.create()
else:
# determine geometry from size or chs
geo = DiskGeometry()
if not geo.setup(options):
raise IOError("can't determine geometry of HDF image file")
blkdev = HDFBlockDevice(img_file, fobj=fobj)
blkdev.create(geo)
return blkdev
