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Presto: A project to add delta rpm support into yum for Fedora users
https://hosted.fedoraproject.org/projects/presto/wiki/WikiStart
Installation:
=============
1- Install yum-presto on your system (yum -y install yum-presto)
2- Now install an old rpm from updates or extras using rpm, then try updating
it using yum. The plugin should kick in, try to download the drpm,
reconstruct the full rpm, and yum should install that.
Notes:
======
Presto will read the deltaurl from two possible locations:
1. The repository's .repo file ("deltaurl = http://repository.com")
2. Appended to /etc/yum/pluginconf.d/presto.conf in the form:
[repository]
deltaurl = http://repository.com
Presto.conf has the following options in [main]:
keepdeltas=1 Always keep deltas in cache no matter what keepcache
is set to.
neverkeepdeltas=1 Always remove deltas after creating full rpms.
exitondownloadfailure=0|1 If there is a problem downloading the deltarpm, exit
rather than trying to download the full rpm.
Note: If you specify neither keepdeltas nor neverkeepdeltas, presto will follow
the keepcache option in yum.conf.
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