How to upgrade from Fedora 20 to 21

  • Posted January 17, 2015

How can upgrade from fedora 20 to 21 keeping the current setup and installed programs.


I haven’t tried it yet, as I wanted to make a snapshot of my Droplet before proceeding, but my understanding is that the Fedora project makes available a script called ‘fedora-upgrade’ that you can install using yum and then run. Has anyone here tried that yet?

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Thanks for the link , I follow the instruction in

After do it, i had some problems

i could not restart , or shutdown the server, when i tried to reboot the server i got this message

“Failed to start Activation of org.freedesktop.systemd1 timed out Failed to open /dev/initctl: No such device or address Failed to talk to init daemon”

and when i tried to start any service i got the next message “Failed to start fail2ban.service: Activation of org.freedesktop.systemd1 timed out” (this example is with fail2ban service in each service the name of the service change)

or when i tried to see the status i got … “Failed to get properties: Activation of org.freedesktop.systemd1 timed out”

I had to choose another kernel “Fedora 21 x64 vmlinuz-3.17.8-300.fc21.x86_64” , applied all the updates , i restarted the server from the web panel

and installed again fail2ban because the module relate with Firewalld was erased with the updates

and now all is working ok.


At the moment all I can think of is this

Don’t know of any official way to do it but could be wrong