===== Fedora =====

Nvidia drivers
<code >
dnf install akmod-nvidia
dnf install kernel-devel-xxx
akmods --force --kernels 6.xx
</code>

=== Post install nvidia driver ===

<code>
cat /etc/X11/xorg.conf.d/10-nvidia.conf
Section "OutputClass"
	Identifier "nvidia"
	MatchDriver "nvidia-drm"
	Driver "nvidia"
	Option "AllowEmptyInitialConfiguration"
	Option "SLI" "Auto"
	Option "BaseMosaic" "on"
	Option "PrimaryGPU" "yes"
EndSection

Section "ServerLayout"
	Identifier "layout"
	Option "AllowNVIDIAGPUScreens"
EndSection
</code>

Enable suspend: 

<code>
systemctl enable nvidia-{suspend,resume,hibernate}
echo "options nvidia NVreg_PreserveVideoMemoryAllocations=1 NVreg_TemporaryFilePath=/tmp" | sudo tee /etc/modprobe.d/nvidia-power-management.conf
</code>

==== Upgrade ====
Upgrade max to current version +2 (Ex from fc 38 to 40)
<code>
dnf system-upgrade download --releasever=40
</code>

Remove cached files after upgrade:
<code>
dnf system-upgrade clean
</code>

Check if any packages version were locked:
<code>
cat /etc/dnf/plugins/versionlock.list
# if locked:
dnf versionlock clear
</code>

=== Remove rhgb & quiet from kernel’s GRUB menu entry ===
<code>
grubby --remove-args="rhgb quiet" --update-kernel=ALL
</code>


=== DNS servers ===
Check DNS:
<code>
systemd-resolve --status | grep "DNS Servers"
</code>

Flush DNS:
<code>
systemd-resolve --flush-caches
</code>

Chroot:
<code>
systemd-nspawn -D
</code>

Restore from live disk:
https://docs.fedoraproject.org/en-US/quick-docs/grub2-bootloader/#_restoring_the_bootloader_using_the_live_disk

File system check:
https://www.freedesktop.org/software/systemd/man/latest/systemd-fsck@.service.html#Kernel%20Command%20Line

Verify packages:
http://ftp.rpm.org/max-rpm/s1-rpm-verify-what-to-verify.html#S2-RPM-VERIFY-A-OPTION