On Thu, Aug 19, 2010 at 11:15 PM, Jasper Hartline <jasper.hartline(a)gmail.com&gt; wrote: > On Thu, Aug 19, 2010 at 3:20 PM, Jasper Hartline > I'll keep workking with this and update you with the latest, as soon > as I get more done. > Well. I have failed to decrypt the FileSystem class for pyparted. It seems you create a format object and then pass that to Partition, like this.. below however, upon looking at the loop device and using hexdump, and dumpe2fs and trying to mount it, etc. It seems it is corrupt or is not a valid filesystem. So I'm not sure what is going on. Also, to get the size we can just use size divided by 512. That gives us the maximum number of sectors minus 1 for the MBR. #!/usr/bin/python import os import sys import parted size = os.stat("/tmp/file").st_size sectors = size / 512 - 1 device = parted.Device(path="/dev/loop0") disk = parted.freshDisk(device, 'msdos') start = 2 end = sectors new_geom = parted.Geometry(device=device,                           start=start,                           end=end) format = parted.FileSystem(type="ext2", geometry=new_geom).create() partition = parted.Partition(disk=disk,                             fs=format,                             type=82,                             geometry=new_geom) constraint = parted.Constraint(exactGeom=new_geom) disk.addPartition(partition=partition,                  constraint=constraint) disk.commit() So here attached is what I have so far, it is what I would like to continue to work on and fox the format routing when we figure out how to use pyparted properly. So far I have it setting up correctly and the master boot record is proper. /dev/loop0 on /tmp/tmprjsmh3 type ext3 (rw) /dev/loop1 on /tmp/tmpKTCs75 type iso9660 (rw) /dev/loop2 on /tmp/tmpLi76ER type iso9660 (rw) [root@localhost tmp]# ls -l /tmp/tmprjsmh3 total 28 drwx------ 2 root root 16384 Aug 20 03:54 lost+found drwxr-xr-x 2 root root  4096 Aug 20 03:54 syslinux drwxr-xr-x 2 root root  4096 Aug 20 03:54 x64 drwxr-xr-x 2 root root  4096 Aug 20 03:54 x86 [root@localhost tmp]#