I get the bug described here when trying to upgrade to Fedora 20 from Fedora 17.
The symptom is that the first stage of upgrade (before rebooting) works successfully, but when you reboot to complete the upgrade, the second stage begins but almost immediately aborts and reboots back to your previous Fedora system.
Guess I'm running fedup 0.7 (see terminal output)
[root@localhost mylaptop]# yum install fedup
Loaded plugins: langpacks, presto, refresh-packagekit
Package fedup-0.7.3-5.fc17.noarch already installed and latest version
Nothing to do
There is a mention about getting fedup 0.8 from updates repository but that's in my repolist:
[root@localhost mylaptop]# yum repolist
Loaded plugins: langpacks, presto, refresh-packagekit
repo id repo name status
adobe-linux-x86_64 Adobe Systems Incorporated 2
fedora/17/x86_64 Fedora 17 - x86_64 27,033
updates/17/x86_64 Fedora 17 - x86_64 - Updates 13,163
repolist: 40,198
The solution described is to update fedup to 0.8 but as you can see in the output it won't because 0.7 is installed and latest version. What am I to do next?
[UPDATE]
Got the fedup package from http://kojipkgs.fedoraproject.org//packages/fedup/0.8.0/3.fc18/noarch/fedup-0.8.0-3.fc18.noarch.rpm
After installing (double clicking the file); as root copied the files I've already downloaded using fedup 0.7
cp -R /var/lib/fedora-upgrade /var/lib/system-upgrade
cp -R /var/tmp/fedora-upgrade /var/tmp/system-upgrade
Running fedup again as root:
fedup --network 20 --nogpgcheck
[UPDATE]
After that it will boot through the update upgrade and boots into .... Fedora 17 :(
Can reboot again and have the upgrade option again that will boot into 17 again minus a working wifi.