# Fedora on the Framework

Mostly stolen from https://mutschler.eu/linux/install-guides/fedora-post-install/

## Dual Boot with Fingerprint Scanner Issues

https://community.frame.work/t/fingerprint-scanner-compatibility-with-linux-ubuntu-fedora-etc/1501/206

## Revert Kernel (if needed)

With koji

```bash
sudo dnf install koji
mkdir /tmp/kernel-download
cd /tmp/kernel-download
koji search build kernel-6.0.12*
koji download-build --arch=x86_64 kernel-6.0.12-300.fc37
sudo dnf install ./*.rpm
```

```bash
# Find the kernels you have installed
sudo rpm -qa kernel

# List available kernels
sudo ls /boot | grep vmlinuz

# Revert to a previous kernel
sudo grubby --set-default /boot/vmlinuz-5.14.10-300.fc35.x86_64
```

## Make DNF Fast

```bash
echo 'fastestmirror=1' | sudo tee -a /etc/dnf/dnf.conf
echo 'max_parallel_downloads=10' | sudo tee -a /etc/dnf/dnf.conf
echo 'deltarpm=true' | sudo tee -a /etc/dnf/dnf.conf
cat /etc/dnf/dnf.conf
```

## Set Hostname

```bash
hostnamectl set-hostname ducolaptop
```

## BTRFS Optimizations

```bash
sudo vim /etc/fstab
# subvol=root,x-systemd.device-timeout=0,ssd,noatime,space_cache,commit=120,compress=zstd,discard=async 0 0
# subvol=home,x-systemd.device-timeout=0,ssd,noatime,space_cache,commit=120,compress=zstd,discard=async 0 0

sudo vim /etc/crypttab
# luks-fcc669e7-32d5-43b2-ba03-2db6a7f5b33d UUID=fcc669e7-32d5-43b2-ba03-2db6a7f5b33d none discard

sudo systemctl enable fstrim.timer
```

## Install updates

```bash
sudo dnf upgrade --refresh
sudo dnf check
sudo dnf autoremove
sudo fwupdmgr get-devices
sudo fwupdmgr refresh --force
sudo fwupdmgr get-updates
sudo fwupdmgr update
sudo reboot now
```

## Install Fish

```bash
sudo dnf install -y fish util-linux-user
chsh -s /usr/bin/fish
```

```bash
mkdir -p /home/$USER/.local/bin
set -Ua fish_user_paths /home/$USER/.local/bin
```

## ISCSI

```bash
# Login to portal
iscsiadm -m discovery -t st -p driveripper.reeselink.com

# Mount all targets
iscsiadm -m node --targetname iqn.2023-01.driveripper.reeselink.com:2023-framework-backup -p driveripper.reeselink.com:3260 -l

iscsiadm -m node --loginall all

# Mount at boot
vim /etc/iscsi/nodes/iqn.2022-02.freenas.dnet:manjaro-backup/10.1.2.200,3260,1
    (/var/lib/iscsi/nodes/iqn.2022-02.freenas.dnet:manjaro-backup/10.1.2.200,3260,1/default) on fedora

node.startup = automatic

# Log out of all sessions
iscsiadm -m node -u
```

## Gnome Tweaks

1. Fonts -> Monospace Text -> Fira Code Regular
2. Keyboard & Mouse -> Acceleration Profile -> Flat
3. Keyboard & Mouse -> Mouse Click Emulation -> Fingers
4. Top Bar -> Activities Overview Hot Corner -> Off
5. Top Bar -> Battery Percentage -> On
6. Top Bar -> Clock -> Weekday -> On
7. Top Bar -> Clock -> Seconds -> On
8. Windows -> Center New Windows -> On

## Flatpack

```bash
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
flatpak update
```

## Snap

```bash
sudo dnf install -y snapd
sudo ln -s /var/lib/snapd/snap /snap # for classic snap support
ln -s /var/lib/snapd/desktop/applications ~/.local/share/applications/snap # make apps show up in gnome
sudo reboot now
```

## AppImage Launcher

Download RPM from https://github.com/TheAssassin/AppImageLauncher/releases/tag/v2.2.0

## Ansible

```bash
ansible-playbook --ask-become-pass ansible/framework_fedora.yml
```

## BTRBK

### Create Encrypted Drive

```bash
# Create an encrypted drive
sudo cryptsetup luksFormat /dev/sdb1

# LUKS Disk Encryption can use up to 8 key slots to store passwords. We can use these keys to auto mount LUKS device.
# cryptsetup luksDump /dev/sda

# Create a lukskeys
mkdir -p /home/ducoterra/.lukskeys

# Generate key
dd if=/dev/random bs=32 count=1 of=/home/ducoterra/.lukskeys/btr_backup

# Change key mode
chmod 600 /home/ducoterra/.lukskeys

# Luks add a key
sudo cryptsetup luksAddKey /dev/sda /home/ducoterra/.lukskeys/btr_backup

# Get UUID of disk with
sudo blkid /dev/sda1

# Add key to crypttab
echo 'btr_backup UUID=1d7ce570-e695-47a0-9dda-5f14b5b20e21 /home/ducoterra/.lukskeys/btr_backup luks' >> /etc/crypttab

# Create read-only backup mount point
sudo btrfs sub create /mnt/btr_backup
sudo btrfs property set /mnt/btr_backup ro true

# Add to fstab
echo '/dev/mapper/btr_backup /mnt/btr_backup btrfs x-systemd.device-timeout=0,x-gvfs-show,x-gvfs-name=btr_backup,ssd,nofail,noatime,discard=async,compress=zstd 0 0' >> /etc/fstab

# mount
sudo cryptsetup luksOpen /dev/disk/by-uuid/1d7ce570-e695-47a0-9dda-5f14b5b20e21 backup0 --key-file=/home/ducoterra/.lukskeys/backup0

# close (or fix issues)
sudo cryptsetup luksClose backup0
```

### Backup Disks

Backup disks will respect the following naming convention:

brand_size_purpose_year_month

So for a backup drive you would create:

`wd_4tb_backup_2023_01`

Or for an archive drive:

`samsung_1tb_archive_2023_01`

#### Disk Health

`smartctl -a /dev/sda`

### Create BTRBK Config

`sudo vim /etc/btrbk/btrbk.conf`

```conf
snapshot_create         ondemand
snapshot_preserve_min   2d
snapshot_preserve       14d
snapshot_dir snapshots

target_preserve_min     no
target_preserve         20d 10w *m

volume /mnt/btr_pool
	target       /mnt/btr_backup
	subvolume    root
	subvolume    home
```

### Create Systemd Timer

`sudo vim /etc/systemd/system/btrbk.service`

```conf
[Unit]
Description=Runs btrbk with config file at /etc/btrbk/btrbk.conf

[Service]
ExecStart=btrbk -c /etc/btrbk/btrbk.conf -v run
```

`sudo vim /etc/systemd/system/btrbk.timer`

```conf
[Unit]
Description=Run btrbk every hour

[Timer]
OnCalendar=hourly
AccuracySec=10min
Persistent=true
Unit=btrbk.service

[Install]
WantedBy=timers.target
```

### Test, Start and Enable service

Test your service:the available storage space on our NAS to the iSCSI target and the other half

```bash
sudo btrbk -c /etc/btrbk/btrbk.conf -v run
```

Enable your service:

```bash
sudo systemctl start btrbk.timer

sudo systemctl enable btrbk.timer
```

### Minecraft

1. You can find extra java versions at /etc/alternatives
2. You need to `dnf install xrandr` to launch any modpacks
3. You can create a desktop icon by putting this at ~/.local/share/applications/*.desktop:

```
[Desktop Entry]
Encoding=UTF-8
Name=Technic Launcher
Exec=/usr/bin/java -jar /home/ducoterra/Applications/TechnicLauncher.jar
Icon=/home/ducoterra/.icons/minecraft-launcher.png
Type=Application
Categories=Games;
```

### Firewall CMD

1. Enable firewall

```bash
systemctl start firewall-cmd
systemctl enable firewall-cmd
```

2. Set default behavior to drop everything

```bash
firewall-cmd --set-default-zone=drop
systemctl reload firewall-cmd
```

### Resources

Network monitoring: https://linuxconfig.org/how-to-monitor-network-activity-on-a-linux-system

## Backups

### Full system backup

In the event you need to restore your system from a disaster do the following:

1. Reinstall fedora via a live image
2. After install, disk should be mounted at /mnt/sysimage
3. Copy the new fstab and crypttab to somewhere safe
4. rsync -av [etc, home, opt, root, usr, var]
5. `mount /dev/Y /mnt/sysimage/boot`
6. `mount /dev/Z /mnt/sysimage/boot/efi`
7. `mount --bind /dev /mnt/sysimage/dev`
8. `mount --bind /proc /mnt/sysimage/proc`
9. `mount --bind /sys /mnt/sysimage/sys`
10. `chroot /mnt/sysimage`
11. Edit fstab and crypttab so they match the new partitions
12. Update /etc/default/grub to match the new luks uuid
13. grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
14. reboot

## Libvirt

### Snapshots on secure-boot VMs

```bash
# list snapshots
qemu-img snapshot -l win10.qcow2

# create a snapshot
qemu-img snapshot -c 1-welcome win10.qcow2

# restore a snapshot
qemu-img snapshot -a 1-welcome win10.qcow2
```

### Connecting to Truenas via virt-manager

You should be able to use the following custom URL:

```text
qemu+ssh://root@driveripper.reeserelease.com/system?socket=/run/truenas_libvirt/libvirt-sock
```

This assumes the correct socket path from `/etc/libvirt/libvirtd.conf` and ability to log in as the root user via ssh.

## bluetooth

### Airpods

Edit: /etc/bluetooth/main.conf
Set ControllerMode = bredr

restart bluetooth service
connect airpods
comment line out
restart bluetooth service again

## ZRAM

Edit /etc/systemd/zram-generator.conf

```conf
[zram0]
zram-size = min(ram / 2, 16384)
compression-algorithm = lzo-rle
options =
writeback-device = /dev/zvol/tarta-zoot/swap-writeback
```

## Automatic Disk Decryption with TPM2

https://gist.github.com/jdoss/777e8b52c8d88eb87467935769c98a95

```bash
# Add decryption key to tpm. 
systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs=0+2+4+7 /dev/nvme0n1p3

# Wipe old keys and enroll new key. You have to execute this command again after a kernel upgrade.
systemd-cryptenroll /dev/nvme0n1p3 --wipe-slot=tpm2 --tpm2-device=auto --tpm2-pcrs=0,2,4,7

# Add tpm2 configuration option to /etc/crypttab
luks-$UUID UUID=disk-$UUID none tpm2-device=auto,discard

# Add rd.luks.options=tpm2-device=auto to grub
grubby --args="rd.luks.options=tpm2-device=auto" --update-kernel=ALL

dracut -f
```

## Firefox GPU Rendering

https://community.frame.work/t/linux-battery-life-tuning/6665

```bash
dnf install intel-media-driver intel-gpu-tools
```

Type in about:config in the address bar and hit enter.

Set media.rdd-ffmpeg.enabled, media.ffmpeg.vaapi.enabled and media.navigator.mediadatadecoder_vpx_enabled to true.

Close and reopen your browser

Run the command sudo intel_gpu_top, play a 4k video and check whether the Video section is above 0.00%

## Gnome Software Updates (packagekitd and software)

To prevent Gnome Shell from starting Software open Settings->Search and disable Software from there.

Disable auto-updates

```bash
sudo systemctl disable packagekit
sudo systemctl stop packagekit

dconf write /org/gnome/software/allow-updates false
dconf write /org/gnome/software/download-updates false
```

## Battery Life

```bash
grubby --args="nvme.noacpi=1" --update-kernel=ALL
```

Enable automatic power profile switching on AC/Battery

1. `sudo mkdir /lib/udev/power-profiles`
1. `sudo vim /lib/udev/power-profiles/power-saver`

    ```bash
    powerprofilesctl set power-saver
    ```

1. `sudo chmod +x /lib/udev/power-profiles/power-saver`
1. `sudo vim /lib/udev/power-profiles/performance`

    ```bash
    powerprofilesctl set performance
    ```

1. `sudo chmod +x /lib/udev/power-profiles/performance`

sudo vim /etc/udev/rules.d/10-power.rules

```bash
SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="/bin/bash /lib/udev/power-profiles/power-saver"
SUBSYSTEM=="power_supply", ATTR{online}=="1", RUN+="/bin/bash /lib/udev/power-profiles/performance"
```

~~Calibrate with powertop~~

Powertop causes connection issues with USB while the computer is plugged in. Do not
recommend.

```bash
sudo dnf install powertop
# This will take a while
sudo powertop --calibrate
sudo powertop
```

~~Install and enable tlp~~

TLP seems to limit maximum performance. I'm leaving it here for posterity.
Stick with powertop and power profiles daemon.

```bash
sudo systemctl stop power-profiles-daemon.service
sudo systemctl disable power-profiles-daemon.service
sudo systemctl mask power-profiles-daemon.service

sudo dnf install tlp
sudo systemctl mask systemd-rfkill.service
sudo systemctl mask systemd-rfkill.socket
sudo systemctl enable tlp.service --now
sudo systemctl status tlp.service
```

### Simple Battery Monitoring App

alarm           charge_full_design  device        power          subsystem   voltage_min_design
capacity        charge_now          hwmon2        present        technology  voltage_now
capacity_level  current_now         manufacturer  serial_number  type
charge_full     cycle_count         model_name    status         uevent

```bash
sudo mkdir /etc/battery_monitor
sudo vim /etc/battery_monitor/battery_monitor.sh
```

```bash
#!/bin/bash

CSV_LOCATION="/home/ducoterra/data"
CSV_NAME="battery_monitor.csv"
BATTERY_DATA_LOCATION="/sys/class/power_supply/BAT1"
if [ ! -f $CSV_LOCATION/$CSV_NAME ]; 
then
    mkdir -p $CSV_LOCATION;
    echo "time,percent,charge_now,charge_full,voltage_now,current_now,cycle_count,status" > $CSV_LOCATION/$CSV_NAME
    chown -R ducoterra:ducoterra $CSV_LOCATION
fi
time=$(date --iso-8601=seconds)
percent=$(cat $BATTERY_DATA_LOCATION/capacity)
charge_now=$(cat $BATTERY_DATA_LOCATION/charge_now)
charge_full=$(cat $BATTERY_DATA_LOCATION/charge_full)
voltage_now=$(cat $BATTERY_DATA_LOCATION/voltage_now)
current_now=$(cat $BATTERY_DATA_LOCATION/current_now)
cycle_count=$(cat $BATTERY_DATA_LOCATION/cycle_count)
status=$(cat $BATTERY_DATA_LOCATION/status)

echo "$time,$percent,$charge_now,$charge_full,$voltage_now,$current_now,$cycle_count,$status" >> $CSV_LOCATION/$CSV_NAME
```

`sudo vim /etc/systemd/system/battery_monitor.service`

```conf
[Unit]
Description=Records the current battery level

[Service]
Type=oneshot
ExecStart=/bin/bash /etc/battery_monitor/battery_monitor.sh

[Install]
WantedBy=multi-user.target
```

`sudo vim /etc/systemd/system/battery_monitor.timer`

```conf
[Unit]
Description=Run battery_monitor every 15 seconds

[Timer]
OnCalendar=*:*:0,15,30,45
AccuracySec=10sec
Persistent=true
Unit=battery_monitor.service

[Install]
WantedBy=timers.target
```

`sudo systemctl start battery_monitor.timer`

## Turn Off Fingerprint When Laptop Lid Closed

To disable fingerprint authentication when the laptop lid is closed, and re-enable when it is reopened, we will use acpid to bind to the button/lid.* event to a custom script that will stop and mask the fprintd service on lid close, and unmask and start the fprintd service on lid open.

We also check that the HDMI cable is connected by testing the contents of /sys/class/drm/card0-HDMI-A-1/status.

Follow the steps below:

1. Create a .locks file in your home dir: `mkdir ~/.locks`
1. Create file /etc/acpi/laptop-lid.sh with the following contents:

    ```bash
    #!/bin/bash

    lock=/home/ducoterra/.locks/fprint-disabled.lock

    if grep -Fq closed /proc/acpi/button/lid/LID0/state # &&
        # This is used to detect if a display is connected.
        # For USB C displayport use: 
        # grep -Fxq connected /sys/class/drm/card1-DP-2/status
        # For hdmi use:
        # grep -Fxq connected /sys/class/drm/card0-HDMI-A-1/status
    then
        touch "$lock"
        systemctl stop fprintd
        systemctl mask fprintd
    elif [ -f "$lock" ]
    then
        systemctl unmask fprintd
        systemctl start fprintd
        rm -f "$lock"
    fi
    ```

2. Make the file executable with

    `chmod +x /etc/acpi/laptop-lid.sh`

3. Create file /etc/acpi/events/laptop-lid with the following contents:

    ```bash
    event=button/lid.*
    action=/etc/acpi/laptop-lid.sh
    ```

4. Restart the acpid service with:

    `sudo service acpid restart`

Now the fingerprint will be used only when the lid is open.

In order to restore the correct state of the fprintd service if you disconnect/reconnect while the laptop is off, you may call the above script from a systemd init file. The steps to do this are the following:

1. Create a file named /etc/systemd/system/laptop-lid.service with the following contents:

    ```bash
    [Unit]
    Description=Laptop Lid
    After=suspend.target

    [Service]
    ExecStart=/etc/acpi/laptop-lid.sh

    [Install]
    WantedBy=multi-user.target
    WantedBy=suspend.target
    ```

2. Reload the systemd config files with

    `sudo systemctl daemon-reload`

3. Start the service with

    `sudo systemctl start laptop-lid.service`

4. Enable the service so that it starts automatically on boot

    `sudo systemctl enable laptop-lid.service`

Now the status should be correct even after connecting/disconnecting when the computer is off.