https://fedoraproject.org/wiki/Features/FedoraUpgrade
Feature owner(s): Miroslav Suchý <msuchy@redhat.com>
Upgrade Fedora to next version using yum upgrade.
== Detailed description ==
In past (until Fedora 17) we could upgrade Fedora using Anaconda Upgrade and
PreUpgrade.
Now (in Fedora 18) we have only FedUp and previous methods are obsoleted.
I propose to have FedUp and FedoraUpgrade in Fedora 19.
FedUp is in fact yum-upgrade as well, but in dracut environment (aka off-line
upgrade). Some devels say that offline upgrade is only way. But on-line upgrade
is possible. E.g in Debian world it is even prefered method. In Fedora exist
upgrade using yum as unofficial method for long time.
A lot of people are using upgrade using yum for long time and the "problem
ratio" was at least on pair with Anaconda upgrade. In fact most problems comes
from improper packaging. E.g. maintainer forgot to obsolete, so during upgrade
user get file conflict. Once these problems are reported and fixed the upgrade is
without problem.
And since FedUp is just different approach to yum-upgrade, FedUp will benefit
from fixes on FedoraUpgrade (and vice versa).
I propose to support both FedUp and FedoraUpgrade and give user option.
If this method will be tested by FedoraQA, then I believe this upgrade method
can be safely recommended to user.
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