Debain 12 Plasma 5 LTS Setup

  • Install with minimal iso do not install any DE bare minimal setup
  • Do not set root password, this will allow user as sudo
  • Pre Install Setup

Create partitions for each drive before the install process

  • EFI partition for UEFI Boot drive 512MB type fat32 /dev/sda1
  • Root system partition remaining space type ext4 /dev/sda2
  • Home partition/drive space ssd /dev/sdb1
  • Swap space partiton 16GB type swap /dev/sdb2
  • Data drive 4TB hdd ext4 /dev/sdc1

Install as usual after creating partitions. Reboot.

fstab

The fstab file configures the mounted drives/partitions Obtain UUID for each drive/partiton on system.

lsblk -f
/etc/fstab 
Root   UUID="" /               ext4    auto,noatime,errors=remount-ro 0  1
home   UUID="" /home           ext4    auto,noatime,nouser            0  1
Data   UUID="" /home/Data      ext4    auto,noatime,nouser            0  1
SWAP   UUID="" swap            swap    sw                             0  0
tmpfs          /tmp            tmpfs   auto,noatime,mode=1777         0  0

EXT4 options

Enable fast_commit journal option speed up FS writes 

sudo tune2fs -O fast_commit /dev/sda2
sudo tune2fs -O fast_commit /dev/sdb1

Verify

sudo tune2fs -l /dev/sda2 | grep features

Update apt sources.list

  sudo nano /etc/apt/sources.list
  deb http://deb.debian.org/debian bookworm main non-free-firmware contrib non-free
  deb http://deb.debian.org/debian bookworm-updates main non-free-firmware contrib non-free
  deb http://security.debian.org/debian-security/ bookworm-security main non-free-firmware contrib non-free
  deb http://deb.debian.org/debian bookworm-backports main non-free-firmware contrib non-free
sudo apt update && upgrade
sudo reboot

Modprobe

/etc/modprobe.d
sudo nano /etc/modprobe.d/audio.conf

options snd_hda_intel power_save=0 power_save_controller=N

GPU /etc/modprobe.d/intel.conf

options i915 modeset=1 mitigations=off fastboot=1 enable_fbc=0 enable_psr=0 enable_guc=-1

After creating these files run 

sudo update-initramfs -u

This wil update boot image to include the changes.
Reboot.

Install DE and apps

  • sudo apt install kde-plasma-desktop
  • after boot to desktop
  • edit the /etc/network/interfaces file as administrator: sudo nano /etc/network/interfaces remove any networks interfaces , interferes with network manager
  • Reboot
  • install some useful apps 
    apt install
ark kde-spectacle libreoffice libreoffice-kde5 okular okular-extra-backends python3-pyside2-qtgui python3-pyqt5.qtquick inkscape gimp kcalc kcolorchooser,muon,linux-cpupower minidlna xournalpp plasma-sdk qmlscene qml bleachbit handbrake handbrake-cli mpv mpv-mpris qt5-style-kvantum mame

Disable some uneeded system services

Disable ModemManager If you do not have a mobile broadband interface.

sudo systemctl disable ModemManager.service
sudo systemctl mask ModemManager.service

fwupd is a daemon allowing you to update some devices’ firmware, including UEFI for several machines.
Remove fwupd from boot

sudo systemctl disable fwupd.service
sudo systemctl mask fwupd.service

GPU-Manager is software that creates a xorg.conf for you. So running this in every boot is just overkill. You only need to run this if you change your GPU.

sudo systemctl disable gpu-manager.service
sudo systemctl mask gpu-manager.service

Apt-daily-upgrade solves long boot up time with apt-daily-upgrade.

sudo systemctl disable apt-daily.service
sudo systemctl disable apt-daily.timer
sudo systemctl mask apt-daily.timer
sudo systemctl disable apt-daily-upgrade.timer
sudo systemctl disable apt-daily-upgrade.service
sudo systemctl mask apt-daily-upgrade.service


Logical Volume Manager (LVM) is a device mapper framework that provides logical volume management.
Disable LVM

sudo systemctl disable lvm2-monitor.service
sudo systemctl mask lvm2-monitor.service

Better Pulse Audio Settings

/etc/pulse/daemon.conf

default-sample-format = float32le
default-sample-rate = 48000
alternate-sample-rate = 44100
default-sample-channels = 2
default-channel-map = front-left,front-right
default-fragments = 2
default-fragment-size-msec = 125
resample-method = soxr-vhq
avoid-resampling = yes

high-priority = yes
nice-level = -11
realtime-scheduling = yes
realtime-priority = 9
rlimit-rtprio = 9
daemonize = no

Optimize network MTU

The ping command will let you know if the packet was sent as more than one fragment with multiple header data attached.

ping -s 1472 -c1 espn.com

systemd-boot, replace grub, speeds up boot time.

systemd-boot loader - grub replacement

post-kernel-script

Custom scipt to update systemd-boot config files after kernel updates
Install systemd-boot loader

sudo bootctl install --path=/boot/efi

Root flags are same as grub options in /etc/default/grub 

ROOTFLAGS="quiet apparmor=1 security=apparmor loglevel=3  mitigations=off udev.log_priority=3 resume=UUID=123"
ROOTFLAGS1="quiet apparmor=1 security=apparmor loglevel=3  mitigations=off udev.log_priority=3 resume=UUID=123 3"

After install and setup of systemd-boot run 

sudo update-initramfs -u

This wil update systemd-boot config files.
Reboot.

xanmod kernel