docs: deb lb notes

Author: lukeify

Linux/Debian.md

@@ -46,20 +46,135 @@ Both can be installed simultaneously.
 
 ## Goal: Run Debian 12 on a Lenovo ThinkPad X1 Carbon (12th gen)
 
-### Debian 12 Stable Vanilla
+This laptop is too new to run Debian 12 vanilla in an acceptable way without modification.
+Some of the issues encountered:
 
-An initial attempt ino
+* The kernel was not up to date enough, and `6.9` is needed (Intel docs suggest `6.10` is needed?)
+* Firmware to use the Wi-Fi 6E AX211 card was not present (and was asking for microcode files), so installing `firmware-iwlwifi` at version `20240709` was needed.
+  https://www.intel.com/content/www/us/en/products/sku/204837/intel-wifi-6e-ax211-gig/specifications.html
+* No sound was available, as an update to `firmware-sof-signed` to `xxx` was needed.
 
 https://forums.debian.net/viewtopic.php?t=158270
 
-#### Intel WiFi Microcode
+Remember to install linux headers!
 
-#### Sof-sound
+```
+sudo apt -t bookworm-backports install linux-headers-amd64
+```
+
+#### Kernel (`linux-image-6.9.7+bpo-amd64`)
+
+#### Intel WiFi Microcode (`firmware-iwlwifi_20240709-1`)
+
+Maybe not needed if kernel update is provided?
+
+#### Sof-sound (`firmware-sof-signed_`)
 
 ### Kernel Support
 
 ### Compiling an ISO image (Live Builds?)
 
+Initial guide followed: https://ianlecorbeau.github.io/blog/debian-live-build.html
+
+```sh
+#!/bin/sh
+lb config -d bookworm --backports true --debian-installer live \
+    --debian-installer-distribution bookworm \
+    --archive-areas "main contrib non-free non-free-firmware" \
+    --debootstrap-options "--variant=minbase" \
+    --linux-packages "linux-image-6.9.7+bpo"
+
+# Define where to fetch the kernel from
+# https://live-team.pages.debian.net/live-manual/html/live-manual/customizing-package-installation.en.html#429
+echo "deb http://deb.debian.org/debian/ bookworm-backports main" > config/archives/bookworm-backports.list.chroot
+
+# TODO:
+# Ensure that recommended packages we actually want to install are present
+# Not probably needed if apt-recommends is true
+# https://live-team.pages.debian.net/live-manual/html/live-manual/customizing-package-installation.en.html
+# echo "user-setup sudo" > config/package-lists/recommends.list.chroot
+
+# Define packages to install
+cat <<EOF >> config/package-lists/pkgs.list.chroot
+    firefox-esr
+    firmware-iwlwifi
+    firmware-sof-signed
+    git
+    iputils-ping
+    network-manager
+    network-manager-gnome
+    vim
+    xfce
+    xfce-goodies
+    yt-dlp
+EOF
+
+# TODO:
+# Define the Pin-Priority of the packages we want.
+# We need this to ensure packages are installed with the correct version.
+# https://live-team.pages.debian.net/live-manual/html/live-manual/customizing-package-installation.en.html#389
+cat <<EOF >> TODO:
+EOF
+
+# Compiling `tirdad` kernel module by merging in the single change from the upstream `0xsirus` remote that wasn't included in Kicksecure.
+# TODO: Need to set git config
+git clone --depth 1 https://github.com/Kicksecure/tirdad.git
+git remote add original https://github.com/0xsirus/tirdad.git
+git fetch original
+git merge original/master
+
+# `xfce4` auto-configuration
+mdkir -p config/includes.chroot/etc/skel/.config/xfce4/xfconf/xfce-perchannel-xml/
+cat <<EOF >> config/includes.chroot/etc/skel/.config/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml
+<?xml version="1.0" encoding="UTF-8"?>
+<channel name="xsettings" version="1.0">
+  <property name="Gdk/WindowScalingFactor" type="int" value="2"/>
+</channel>
+EOF
+```
+
+TODO: how to test?
+Answer: live boot USB? Guide about how to use KVM in live build manual
+
+#### `tirdad` stuff
+I had to symlink in the linux-headers directory into `/lib/modules/$(uname -r)/build` as well?
+
+```
+ln -sf /usr/lib/$(uname -r)/* /lib/modules/$(uname -r)/build
+```
+
+Once built, install via:
+
+```
+install -D -m 644 tirdad.ko /lib/modules/$(uname -r)/extra/tirdad.ko
+depmod -a $(uname -r)
+```
+
+then verify the module exists:
+
+```
+modprobe tirdad
+```
+
+insmod tirdad gives a segmentation fault at `cet.c`
+
+Maybe try setting ibt=off?
+
+##### `xfce4` configuration
+
+Configuring XFCE4 window appearance:
+
+Copy files into `config/includes.chroot` into the right subdirectory from there.
+
+TODO:
+
+Try setting: `firmware=never live-installer/enable=false` as boot parameters
+https://wiki.debian.org/Firmware
+https://live-team.pages.debian.net/live-manual/html/live-manual/customizing-installer.en.html
+
+TODO:
+Internet didn't seem to be working.
+
 https://live-team.pages.debian.net/live-manual/html/live-manual/index.en.html
 
 [1]: https://www.debian.org/intro/free