Fedora Linux Cheatsheet

Essential commands for installation, package management, system administration, and troubleshooting
Uses dnf (primary) and flatpak/rpm-ostree (for Silverblue/Atomic). All privileged commands require sudo.

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1. Installation (Live USB / Anaconda)

Task	Command / Action
Boot live ISO	Select “Start Fedora-Workstation”
Launch installer	Click “Install to Hard Drive”
Disk partitioning	Use Blivet-GUI or manual (/boot/efi, /, swap)
Post-install (first boot)	Complete user setup via GNOME Initial Setup
Manual install (netinstall)	Boot netinstall ISO → dnf install @base-x (or minimal)
Enable RPM Fusion (Free & Nonfree)	sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm sudo dnf install https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
Update system	sudo dnf upgrade --refresh

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2. DNF (Package Management)

Action	Command
Update system	sudo dnf upgrade --refresh
Install package	sudo dnf install package
Remove package	sudo dnf remove package
Search package	dnf search keyword
List installed	dnf list installed
Autoremove unused	sudo dnf autoremove
Clean cache	sudo dnf clean all
View package info	dnf info package
List files in package	rpm -ql package
Which package owns file	dnf provides /path/to/file
Enable COPR repo	sudo dnf copr enable user/repo
History (undo/redo)	dnf history sudo dnf history undo ID

Flatpak (GUI & CLI)
flatpak install flathub org.mozilla.firefox
flatpak update
flatpak uninstall package

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3. System Administration (systemd)

Task	Command
List services	systemctl list-unit-files --type=service
Enable service	sudo systemctl enable service
Start service	sudo systemctl start service
Status	systemctl status service
View logs	journalctl -u service
Reboot	reboot
Shutdown	poweroff
View kernel messages	dmesg | less
Disk usage	df -h
Memory	free -h
Processes	htop or top
Kill process	kill PID or pkill name

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4. Users & Permissions

Action	Command
Add user	sudo useradd -m username
Set password	sudo passwd username
Add to wheel (sudo)	sudo usermod -aG wheel username
Change owner	sudo chown user:group file
Change permissions	chmod 755 file

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5. Networking

Task	Command
Check IP	ip a or nmcli device show
List Wi-Fi	nmcli device wifi list
Connect Wi-Fi	nmcli device wifi connect SSID password "pass"
Restart NetworkManager	sudo systemctl restart NetworkManager
Check DNS	cat /etc/resolv.conf
Firewall (firewalld)	sudo firewall-cmd --list-all sudo firewall-cmd --add-service=http --permanent

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6. Filesystem & Storage

Task	Command
Mount USB	sudo mount /dev/sdb1 /mnt/usb
Unmount	umount /mnt/usb
Format ext4	sudo mkfs.ext4 /dev/sdX1
Check disk	sudo fsck /dev/sdX1
Find large files	du -ah / | sort -rh | head -n 20
Search files	find / -name "filename" 2>/dev/null

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7. Fedora Variants

Fedora Silverblue / Kinoite (Immutable)

Task	Command
Rebase to new version	rpm-ostree upgrade rpm-ostree rebase fedora:fedora/40/x86_64/silverblue
Layer package	rpm-ostree install package
Remove layered	rpm-ostree override remove package
Rollback	rpm-ostree rollback
Check status	rpm-ostree status
Boot into previous	Select from GRUB

Toolbox (containerized dev)
toolbox create
toolbox enter

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8. Troubleshooting

Issue	Command
Boot to recovery	GRUB → e → add systemd.unit=rescue.target → Ctrl+X
Fix broken deps	sudo dnf distro-sync
Reinstall all packages	sudo dnf reinstall $(dnf list installed | awk '{print $1}')
Clear journal	sudo journalctl --vacuum-time=2weeks
Boot errors	journalctl -b -p err
Regenerate initramfs	sudo dracut -f
Update GRUB	sudo grub2-mkconfig -o /boot/grub2/grub.cfg (BIOS) sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg (UEFI)

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9. Useful Tools to Install

sudo dnf install vim htop git curl wget unzip tree dnf-automatic firewall-config

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10. One-Liners

# Full update + clean
sudo dnf upgrade --refresh && sudo dnf autoremove && sudo dnf clean all

# Enable fastest mirrors
sudo dnf install dnf-plugins-core
sudo dnf config-manager --set-enabled fedora-cisco-openh264
echo "fastestmirror=True" | sudo tee -a /etc/dnf/dnf.conf

# Show orphan packages
dnf leaves

# Update Flatpaks
flatpak update

# Rebase Silverblue to latest
rpm-ostree update && reboot

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11. Fedora Docs & Resources

Official Docs: https://docs.fedoraproject.org
Ask Fedora: https://ask.fedoraproject.org

# Install offline docs
sudo dnf install fedora-docs

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12. Quick Install Scripts

# Post-install script (Workstation)
sudo dnf install https://rpmfusion.org/... (both repos)
sudo dnf upgrade --refresh
sudo dnf install vim htop git @development-tools

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Pro Tip: Use gnome-software or dnfdragora for GUI package management.
For immutability: Silverblue + Toolbox + Flatpak = future-proof desktop

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