feat: add install.sh for one-command installation

PKGBUILD

@@ -4,7 +4,7 @@
 
 pkgbase=linux-charcoal-616
 _nepbase=linux-neptune-616
-_tag=6.16.12-valve21
+_tag=6.16.12-valve23
 _ver=3
 pkgver=${_tag//-/.}.cc$_ver
 pkgrel=1
@@ -96,7 +96,7 @@ source=(
    6.16-poc-selector-v2.6.1.patch 
    6.16-nap-v0.4.0.patch
 )
-sha256sums=('a69eea3b189ab64e65608140d6cd7c57823d1b39b361e876197eec1b4d1db957'
+sha256sums=('4011d16fef57b8f04cbcddc0937819f7fd32225f65d63698afbd5dc6629d0ff0'
             '37452b4d09e5e42134ae24a61f2f656790837c327268074cf79d7dab3558b972'
             'd88eaf0f94bae470040e4882f334c05b1bb2ab0a99e4b7299aa0b2337810ab8d'
             'fd57213c524e24cd9c72e2fecd9b2005934b6099e209864e5a93eb03406fca21'

README.md

@@ -61,13 +61,20 @@ Charcoal is an optimized Linux kernel for Steam Deck, Asus ROG Ally, and other A
 
 ## Install
 
-Download the [latest release](https://github.com/V10lator/linux-charcoal/releases/latest) and run the following on your device:
+Run the following on your device to automatically download and install the latest release:
+
+```bash
+curl -L https://github.com/V10lator/linux-charcoal/raw/master/install.sh | bash
+```
+
+Or manually download the [latest release](https://github.com/V10lator/linux-charcoal/releases/latest) and run:
 
 ```bash
 cd ~/Downloads
-sudo steamos-readonly disable
-sudo pacman -U linux-charcoal-*-x86_64.pkg.tar.zst  # Confirm when asked to remove linux-neptune-*
-sudo steamos-readonly enable
+sudo steamos-devmode enable --no-prompt
+pacman -Qq | grep '^linux-neptune' | xargs -r sudo pacman -Rns --noconfirm
+sudo pacman -U linux-charcoal-*-x86_64.pkg.tar.zst
+sudo grub-mkconfig -o /efi/EFI/steamos/grub.cfg
 rm linux-charcoal*
 ```
 
@@ -87,14 +94,20 @@ You can also verify in Gaming Mode under **Settings → System**, where the kern
 
 ## Uninstall
 
-To remove Charcoal and return to the stock Neptune kernel:
+Run the following to automatically remove Charcoal and restore the Neptune kernel:
+
+```bash
+curl -L https://github.com/V10lator/linux-charcoal/raw/master/uninstall.sh | bash
+```
+
+Or manually:
 
 ```bash
-sudo steamos-readonly disable
-_neptune=$(pacman -Qi $(pacman -Qq 'linux-charcoal*') | awk '/^Replaces/{print $3}')
-sudo pacman -Rsn $(pacman -Qq 'linux-charcoal*')
+sudo steamos-devmode enable --no-prompt
+_neptune=$(pacman -Qi $(pacman -Qq | grep '^linux-charcoal' | grep -v headers | head -1) | grep '^Replaces' | tr ' ' '\n' | grep '^linux-neptune' | head -1)
+sudo pacman -Rsn $(pacman -Qq | grep '^linux-charcoal')
 sudo pacman -S "$_neptune"
-sudo steamos-readonly enable
+sudo grub-mkconfig -o /efi/EFI/steamos/grub.cfg
 ```
 
 Then reboot.

install.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/bash
+
+if [ "$EUID" -eq 0 ]; then
+  echo "Please do not run as root"
+  exit 1
+fi
+
+echo "Fetching latest Charcoal release..."
+RELEASE_JSON=$(curl -s https://api.github.com/repos/V10lator/linux-charcoal/releases/latest)
+PKG_URL=$(echo "$RELEASE_JSON" | grep "browser_download_url" | grep -v "headers" | grep "x86_64.pkg.tar.zst" | cut -d '"' -f 4)
+HEADERS_URL=$(echo "$RELEASE_JSON" | grep "browser_download_url" | grep "headers" | grep "x86_64.pkg.tar.zst" | cut -d '"' -f 4)
+
+if [ -z "$PKG_URL" ] || [ -z "$HEADERS_URL" ]; then
+  echo "Failed to fetch release URLs"
+  exit 1
+fi
+
+echo "Downloading kernel..."
+curl -L "$PKG_URL" -o /tmp/linux-charcoal.pkg.tar.zst
+
+echo "Downloading headers..."
+curl -L "$HEADERS_URL" -o /tmp/linux-charcoal-headers.pkg.tar.zst
+
+echo "Enabling dev mode (disables read-only filesystem and initialises keyring)..."
+sudo steamos-devmode enable --no-prompt
+
+echo "Removing existing Neptune kernel..."
+_original_neptune=$(pacman -Qq | grep '^linux-neptune' | grep -v headers | head -1)
+pacman -Qq | grep '^linux-neptune' | xargs -r sudo pacman -Rns --noconfirm
+
+echo "Installing Charcoal kernel..."
+if ! sudo pacman -U --noconfirm /tmp/linux-charcoal.pkg.tar.zst /tmp/linux-charcoal-headers.pkg.tar.zst; then
+  echo "Install failed — restoring original Neptune kernel..."
+  sudo pacman -S --noconfirm "$_original_neptune"
+  rm -f /tmp/linux-charcoal*.pkg.tar.zst
+  exit 1
+fi
+
+# Save original neptune for uninstall script to restore correctly
+echo "$_original_neptune" | sudo tee /etc/charcoal-original-neptune > /dev/null
+
+echo "Updating GRUB..."
+sudo grub-mkconfig -o /efi/EFI/steamos/grub.cfg
+
+echo "Cleaning up..."
+rm -f /tmp/linux-charcoal*.pkg.tar.zst
+
+echo ""
+echo "Done! Reboot to use the Charcoal kernel."
+echo "Verify after reboot with: uname -a"

uninstall.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/bash
+
+if [ "$EUID" -eq 0 ]; then
+  echo "Please do not run as root"
+  exit 1
+fi
+
+if ! pacman -Qq | grep -q '^linux-charcoal'; then
+  echo "Charcoal kernel is not installed"
+  exit 1
+fi
+
+# Use the originally installed neptune saved during install if available,
+# otherwise fall back to the series from Charcoal's Replaces field
+if [ -f /etc/charcoal-original-neptune ]; then
+  _neptune=$(cat /etc/charcoal-original-neptune)
+  echo "Restoring originally installed Neptune kernel: $_neptune"
+else
+  _neptune=$(pacman -Qi $(pacman -Qq | grep '^linux-charcoal' | grep -v headers | head -1) | grep '^Replaces' | tr ' ' '\n' | grep '^linux-neptune' | head -1)
+  echo "Will reinstall: $_neptune (original not recorded, using Charcoal's Replaces field)"
+fi
+
+if [ -z "$_neptune" ]; then
+  echo "Failed to detect Neptune kernel to restore"
+  exit 1
+fi
+
+echo "Enabling dev mode (disables read-only filesystem and initialises keyring)..."
+sudo steamos-devmode enable --no-prompt
+
+echo "Removing Charcoal kernel..."
+sudo pacman -Rsn --noconfirm $(pacman -Qq | grep '^linux-charcoal')
+
+echo "Reinstalling Neptune kernel..."
+sudo pacman -S --noconfirm "$_neptune"
+
+echo "Updating GRUB..."
+sudo grub-mkconfig -o /efi/EFI/steamos/grub.cfg
+
+sudo rm -f /etc/charcoal-original-neptune
+
+echo ""
+echo "Done! Reboot to return to the Neptune kernel."
+echo "Verify after reboot with: uname -a"