Presto questions

[Tim]

Tim:
>> I wonder if it requires you to still have the prior RPM it deltas
>> against?  Do you keep your yum downloads in the cache directory?

Rahul:
> See the discussions in fedora-devel list. It uses files on disk.

For those who're curious, I'm not on that list, but quickly having a
look at its archives, and presuming that those who contributed know what
they're talking about, it works against the *installed* files on your
system, not the previously cached RPM files.

You were a little bit vague in answering that, Rahul.  They're all
"files".

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