Uploaded September 2025 | Updated September 2026, 1 week ago

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After successfully upgrading your Fedora 42 system to Fedora 43, there are several optional post-upgrade tasks you might consider performing to ensure optimal system performance and maintenance.



Commands:
sudo mount | grep "/boot "
sudo grub2-install /dev/sda
sudo dnf install remove-retired-packages
sudo remove-retired-packages
chmod +x cleanfedorakernel.sh
sudo ./cleanfedorakernel.sh

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#!/usr/bin/env bash

old_kernels=($(dnf repoquery --installonly --latest-limit=-1 -q))
if [ "${#old_kernels[@]}" -eq 0 ]; then
echo "No old kernels found"
exit 0
fi

if ! dnf remove "${old_kernels[@]}"; then
echo "Failed to remove old kernels"
exit 1
fi

echo "Removed old kernels"
exit 0
------------------------------------

sudo dnf install clean-rpm-gpg-pubkey
sudo clean-rpm-gpg-pubkey
sudo dnf install symlinks
sudo symlinks -r /usr | grep dangling
sudo symlinks -r -d /usr




Chapters:
0:00 Intro
0:19 Update GRUB bootloader on BIOS systems
0:52 Clean-up Retired Packages
1:46 Clean-up Old kernels
3:05 Clean-up Old Keys Trusted for RPM Package Signing
3:40 Clean-up Old Symlinks
4:14 End screen



Related Video - youtu.be/J9IqmR0Js9k



What you''ll learn:
1. Update GRUB bootloader on BIOS systems
a. How to Update GRUB bootloader between Fedora Linux release versions
b. How to Find the device node where /boot/ is located
c. How to Reinstall the bootloader
2. Clean-up Retired Packages
a. How to remove Retired Packages
b. How to remove packages on your system that no longer recieve upgrades
3. Clean-up Old kernels
a. How you can remove older kernels
b. How to free up space by removing old kernels
c. How to retain only the latest kernel and clean up old kernels
4. Clean-up Old Keys Trusted for RPM Package Signing
a. How you can remove unreferenced keys
5. Clean-up Old Symlinks
a. How to Install symlinks
b. How to Audit for broken symlinks
c. How to Delete broken symlinks





























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