Upgrade Fedora 34 from Fedora 33 using DNF

Fedora-vertical-logoThis is guide, howto upgrade Fedora 33 to Fedora 34 using DNF. This method works on desktop and server machines. You can also upgrade older Fedora installations (example Fedora 32/31/30) directly to Fedora 34.

I have tested this method on several machines, but if you have problems, please let me know. Always remember backup, before upgrade!

Check video version of guide:

1. Before Upgrade

1.1 Backup Your Data

Before doing anything, do full system backup or backup at least your important data: documents, pictures, videos, config files, log files, databases etc. This is very important step, because if something goes wrong and you have to do fresh install, then you can easily restore your data.

2. Upgrade Fedora 33 to Fedora 34 using DNF

Following steps are mainly for Fedora Server and command line users

2.1 Change root user

su -
## OR ##
sudo -i

2.2 Update Fedora 33/32/31/30 Packages

Just make sure that you have all latest packages installed.

dnf --refresh upgrade

2.3 Reboot Your System

Just make sure that you are running latest kernel.

reboot

2.4 Install/Update dnf-plugin-system-upgrade package

It’s probably installed already.

dnf install dnf-plugin-system-upgrade --best

2.5 Start Upgrading Using DNF

dnf system-upgrade download --refresh --releasever=34

When this finish, check if there is any errors. You might need

--best

and

--allowerasing

options to get all packages downloaded.

2.6 Start (F33 to F34) Upgrade Process

dnf system-upgrade reboot

2.7 Grub 2 Menu Boot with Latest Kernel

Fedora 34 Upgrade Grub2

2.8 Starting System Upgrade

Fedora 34 Upgrade Starting System Upgrade

2.9 dnf-plugin-system-upgrade Upgrading Fedora 33 to Fedora 34

Fedora 34 Upgrade Upgrading

Fedora 34 Upgrade Ready

3. Fedora 34 Screenshots

3.2 Fedora 34 Plain LXQt Desktop

Fedora 34 Plain LXQt Desktop

4. Fedora 34 Clean Up Post Upgrade (as root user)

4.1 Rebuilding the RPM DB

rpm --rebuilddb

4.2 Do Distro Sync

dnf distro-sync --setopt=deltarpm=0

4.3 Check All Your Config Files

Use rpmconf to find .rpmnew, .rpmsave and .rpmorig files. You can keep current version, use old version, watch the diff or merge.

dnf install rpmconf

rpmconf -a

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