[parted-devel] nested extended dos partitions

[Karel Zak]

On Fri, Mar 06, 2009 at 12:56:50PM +0000, Bryn M. Reeves wrote:
> Karel Zak wrote:
>> Hi,
>>
>> I'm looking for a way how to test fdisk and [k]partx code that read
>>  nested extended partitions (ext.partition in ext.partition). It
>> seems that parted and fdisk are not able to create such odd PT
>> layout. Any idea?
>>
>> I'd like to confirm that the offset of all nested extended
>> partitions is always the same as offset for the first extended
>> partition. (See read_table() in libparted/labels/dos.c.)
>>
>> Karel
>>
>
> Is this valid at all? I'm not able to find examples of this nor tools

 I don't know, but I agree that this "feature" is very very strange.

> that will create or interpret such a PT (e.g. the kernel msdos code

 Libparted and fdisk are able to read (but not create) such a PT.

> doesn't handle this and contains a comment that so far there seems to
> be no reason to allow this).

 Maybe we should remove all support for nested extended partitions
 from our tools.

    Karel

-- 
 Karel Zak  <kzak at redhat.com>