Upgrade to Fedora 35 from Fedora 34 using DNF

Fedora-vertical-logoThis is guide, howto upgrade Fedora 34 to Fedora 35 using DNF. This method works on desktop and server machines. You can also upgrade older Fedora installations (example Fedora 33/32/31/30) directly to Fedora 35.

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 34 to Fedora 35 using DNF

2.1 Change root user

su -
## OR ##
sudo -i

2.2 Update Fedora 34/33/32/31/30 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=35

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

--best

and

--allowerasing

options to get all packages downloaded.

2.6 Start (F34 to F35) Upgrade Process

dnf system-upgrade reboot

2.7 Grub 2 Menu Boot with Latest Kernel

Fedora 35 Upgrade Grub2

2.8 Starting System Upgrade

Fedora 34 Upgrade Starting System Upgrade

2.9 dnf-plugin-system-upgrade Upgrading Fedora 34 to Fedora 35

Fedora 34 Upgrade Upgrading

Fedora 34 Upgrade Ready

3. Fedora 35 Screenshots

3.2 Fedora 35 Plain GNOME 41 Desktop

Fedora 35 GNOME 41 Plain Desktop

4. Fedora 35 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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