Comment # 7 on bug 1223444 from Rodney Baker

(In reply to Claudio Fontana from comment #6)
> (In reply to Rodney Baker from comment #5)
> > Surely this can be dealt with through documentation and/or a warning: "You
> > must have the relevant filesystem tools installed for the filesystems used
> > by the guest VM you are about to convert", or words to that effect.
> 
> No, It would be almost impossible for users to track down the nest of
> runtime requirements.
> 
> If you don't want virt-v2v, do not install it.
> 
> If you want a functional virt-v2v, you need all required runtime
> dependencies, or the conversions _will_ fail.

Then be consistent and add "requires" for e2fsprogs, ntfsprogs and xfsprogs as
well. After all, as you said, "If you want a functional virt-v2v, you need all
required runtime dependencies, or the conversions _will_ fail."