dm-loop patch dropped?

Stefan Bader stefan.bader at
Fri Feb 5 01:14:16 UTC 2010

Tim Gardner wrote:
> Hadmut Danisch wrote:
>> Hi,
>> I was looking for a solution for ubuntu bug #500331. A dmsetup command
>> that use to work well in jaunty does not work in karmic
>> anymore. Redhat's developers of the dmsetup command told me, that
>> these commands depend on the dm-loop patch for the linux kernel, which
>> was not yet accepted into the main stream kernel. It seems as if these
>> patches had been applied to jaunty kernels (and maybe older ubuntu
>> versions), but are not applied to karmic anymore. 
>> Has the functionality been dropped intentionally?
>> regards
>> Hadmut
> Yes - dm-loop was removed from Karmic. We've been doing a better job 
> lately of remembering why we made config decisions, but dm-loop appears 
> to have been deleted (by yours truly) without the decision having been 
> documented. I imagine it was because we thought it was unused, bad code, 
> not in the upstream kernel, or some combination of the above excuses.
> rtg

There has been some notes on
by which it was removed afterwe have been told it only had been used by WUBI but
that would not need it any longer.


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