From 4ad4aad4c060eb8f3f4a51f04e0898e6834e8626 Mon Sep 17 00:00:00 2001
From: Torxed <torxed@archlinux.org>
Date: Sun, 27 Jul 2025 16:42:10 +0200
Subject: [PATCH] Added first version of ISO build

---
 .gitignore          |  2 ++
 .gitmodules         |  3 +++
 README.md           | 32 +++++++++++++++++++++++++++++++-
 archiso             |  1 +
 build_iso.sh        | 36 ++++++++++++++++++++++++++++++++++++
 grub-autoboot.patch | 13 +++++++++++++
 6 files changed, 86 insertions(+), 1 deletion(-)
 create mode 100644 .gitignore
 create mode 100644 .gitmodules
 create mode 160000 archiso
 create mode 100755 build_iso.sh
 create mode 100644 grub-autoboot.patch

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a41c0c5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+out/
+**/**.iso
\ No newline at end of file
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..593cd51
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "archiso"]
+	path = archiso
+	url = https://gitlab.archlinux.org/archlinux/archiso.git
diff --git a/README.md b/README.md
index 8c254fb..87654ec 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,31 @@
-# omarchy-iso
\ No newline at end of file
+# omarchy-iso
+
+This will create an ISO that does two things:
+
+1. Auto-boot into Live Arch Linux (without prompt)
+2. Will auto-launch `omarchy-tui`
+
+# Build instructions
+
+```
+$ docker run --rm \
+	--privileged \
+	-v "./out/:/out/" \
+	-v "./build_iso.sh:/build_iso.sh:ro" \
+	-v "./archiso:/archiso:ro" \
+	-v "./grub-autoboot.patch:/grub-autoboot.patch:ro" \
+	archlinux/archlinux:latest /build_iso.sh
+```
+
+Finished result should be in `./out`.
+Note that `--privileged` is used. The main reason being `mkarchiso` mounts `/sys/proc` and other locations, which requires privileged permissions.
+
+# Signing
+
+```
+$ gpg --local-user 0xD4B58E897A929F2E \
+  --output ./out/*.iso.sig \
+  --detach-sig ./out/*.iso
+```
+
+Note that `gpg --list-keys --fingerprint --keyid-format 0xLONG torxed@archlinux.org` can give you your GPG Key ID. In my case `ed25519/0xD4B58E897A929F2E`.
\ No newline at end of file
diff --git a/archiso b/archiso
new file mode 160000
index 0000000..69047bd
--- /dev/null
+++ b/archiso
@@ -0,0 +1 @@
+Subproject commit 69047bdc03ee3bddb00c531a71474897a0d3164b
diff --git a/build_iso.sh b/build_iso.sh
new file mode 100755
index 0000000..41982de
--- /dev/null
+++ b/build_iso.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+set -e
+
+pacman-key --init
+pacman --noconfirm -Sy archlinux-keyring
+pacman --noconfirm -Sy archiso git
+
+# Packages to add to the archiso profile packages
+# As a base example (the TUI packages needs to be here)
+packages=(
+	git
+)
+
+cache_dir=$(realpath --canonicalize-missing ~/.cache/omarchy/iso_$(date +%Y-%m-%d))
+
+mkdir -p $cache_dir/
+cp -r archiso/configs/releng/* $cache_dir/
+
+# We add in our auto-start applications
+# We'll assume the TUI installer is called omarchy-tui for now
+cat <<- _EOF_ | tee $cache_dir/airootfs/root/.zprofile
+	omarchy-tui
+_EOF_
+
+# Add packages to the archiso profile packages
+for package in "${packages[@]}"; do
+	echo "$package" >> "$cache_dir/packages.x86_64"
+done
+
+# We patch grub to our liking:
+(cd $cache_dir/ && git apply /grub-autoboot.patch)
+# We could also use:
+# patch -p1 < grub-autoboot.patch
+
+mkarchiso -v -w "$cache_dir/work/" -o "/out/" "$cache_dir/"
\ No newline at end of file
diff --git a/grub-autoboot.patch b/grub-autoboot.patch
new file mode 100644
index 0000000..f256722
--- /dev/null
+++ b/grub-autoboot.patch
@@ -0,0 +1,13 @@
+--- a/grub/grub.cfg
++++ b/grub/grub.cfg
+@@ -45,8 +45,8 @@ fi
+ 
+ # Set default menu entry
+ default=archlinux
+-timeout=15
+-timeout_style=menu
++timeout=0
++timeout_style=hidden
+ 
+ 
+ # Menu entries