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bug#24650: bug: parted and gparted cannot recognize the file structure o

From: Nio Wiklund
Subject: bug#24650: bug: parted and gparted cannot recognize the file structure of typical linux hybrid iso files
Date: Sat, 8 Oct 2016 21:09:52 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:45.0) Gecko/20100101 Thunderbird/45.3.0


I am developing user friendly tools to create USB boot drives from the isofiles of linux distros. When treated with isohybrid, these files can be cloned and create USB boot drives.

The partition structure is very special to allow booting from CD/DVD disks as well as from mass storage devices like USB pendrives and flash cards. gparted version 0.25.0 is not happy with it and dumps the following text (to a terminal window)

libparted : 3.2
Invalid partition table - recursive partition on /dev/sdd.
Invalid partition table - recursive partition on /dev/sdd.

and causes the corresponding complaint and lack of output for the file system in gparted's GUI. This creates problems for many end users, who think that their pendrives are damaged after cloning. Some people even discard their USB pendrive instead of restoring it to a standard storage device after installing their new linux OS.

But this information is wrong, the drives work as they should. Other tools, for example blkid and lsblk can recognize the iso9660 file system and create no complaints (warnings or error messages).

See the following bug report for more details,



I failed to connect via the bug reporting link


Trac detected an internal error: No module named _md5

Traceback (most recent call last):
File "/var/lib/gforge/chroot/home/groups/parted/cgi-bin/trac.cgi", line 19, in <module>
    from trac.web import cgi_frontend
File "/srv/alioth.debian.org/chroot/home/groups/parted/srv/lib/python2.5/site-packages/trac/web/__init__.py", line 1, in <module>
    from trac.web.api import *
File "/srv/alioth.debian.org/chroot/home/groups/parted/srv/lib/python2.5/site-packages/trac/web/api.py", line 27, in <module>
    from trac.util import get_last_traceback
File "/srv/alioth.debian.org/chroot/home/groups/parted/srv/lib/python2.5/site-packages/trac/util/__init__.py", line 21, in <module>
    import md5
File "/var/lib/gforge/chroot/home/groups/parted/srv/lib/python2.5/md5.py", line 6, in <module>
    from hashlib import md5
File "/var/lib/gforge/chroot/home/groups/parted/srv/lib/python2.5/hashlib.py", line 104, in <module>
    md5 = __get_builtin_constructor('md5')
File "/var/lib/gforge/chroot/home/groups/parted/srv/lib/python2.5/hashlib.py", line 31, in __get_builtin_constructor
    import _md5
ImportError: No module named _md5'
So I write to this list and hope that you can help me to create a formal bug report.

We want libparted to be able to recognize the typical partition structures in mass storage devices made by cloning hybrid linux iso files, and let the tools parted and gparted identify and report the file system (usually iso9660, sometimes udf) correctly.

Best regards
Nio Wiklund

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