theupriser/steamify-cachyos
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Implement kernel installation and locking function

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Adds a function to install and pin a specific CachyOS kernel with verification and locking.
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theupriser authored and GitHub committed 2026-09-24 21:39:15 +02:00
1 parent 0a17f2a336
commit b81e30babf
1 file changed
+39
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lib/steam-machine.sh
+39
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@@ -14,6 +14,39 @@ detect_valve_fremont() {
[[ "$vendor" == "OEM" && "$product" == "F7F" ]]
}
install_pinned_kernel() {
# Define URLs
local KERNEL_URL="https://archive.cachyos.org/archive/cachyos/linux-cachyos-7.1.6-1-x86_64.pkg.tar.zst"
local KERNEL_SIG_URL="https://archive.cachyos.org/archive/cachyos/linux-cachyos-7.1.6-1-x86_64.pkg.tar.zst.sig"
local HEADERS_URL="https://archive.cachyos.org/archive/cachyos/linux-cachyos-headers-7.1.6-1-x86_64.pkg.tar.zst"
local HEADERS_SIG_URL="https://archive.cachyos.org/archive/cachyos/linux-cachyos-headers-7.1.6-1-x86_64.pkg.tar.zst.sig"
# Extract filenames from URLs
local KERNEL_PKG=$(basename "$KERNEL_URL")
local KERNEL_SIG=$(basename "$KERNEL_SIG_URL")
local HEADERS_PKG=$(basename "$HEADERS_URL")
local HEADERS_SIG=$(basename "$HEADERS_SIG_URL")
info "Downloading CachyOS kernel packages and signatures..."
wget -c "$KERNEL_URL" "$KERNEL_SIG_URL" "$HEADERS_URL" "$HEADERS_SIG_URL" || { err "Failed to download kernel packages."; return 1; }
info "Verifying package signatures..."
if ! gpg --verify "$KERNEL_SIG" "$KERNEL_PKG" || ! gpg --verify "$HEADERS_SIG" "$HEADERS_PKG"; then
err "Signature verification failed!"
return 1
fi
info "Verification successful. Installing packages..."
sudo pacman -U --noconfirm "$KERNEL_PKG" "$HEADERS_PKG" || { err "Failed to install packages."; return 1; }
info "Locking the kernel packages to prevent updates..."
# This appends the kernel and headers to the IgnorePkg array in /etc/pacman.conf
sudo sed -i '/^#IgnorePkg/s/^#//' /etc/pacman.conf
sudo sed -i '/^IgnorePkg/ s/$/ linux-cachyos linux-cachyos-headers/' /etc/pacman.conf
ok "Installation complete and kernel successfully locked."
}
install_kernel_headers() {
# DKMS can only build leds-valve against kernels whose headers are
# installed. CachyOS ships several kernels (linux-cachyos, -lts, -bore,
@@ -201,6 +234,9 @@ machine_status() {
}
machine_enable() {
# Install and pin the specific CachyOS kernel first
install_pinned_kernel || { err "Custom kernel setup failed."; return 1; }
ensure_aur_helper || { warn "Couldn't set up an AUR helper automatically. Install yay or paru, then run the wizard again."; return 1; }
install_valve_led_driver || { warn "LED driver setup ran into a problem - see errors above."; return 1; }
install_headers_boot_check
@@ -237,6 +273,9 @@ EOF
machine_disable() {
info "Removing Steam Machine support..."
# Disables services, removes packages, and unpins the kernel
sudo sed -i '/^IgnorePkg/s/ linux-cachyos linux-cachyos-headers//' /etc/pacman.conf
sudo pacman -Syu --noconfirm linux-cachyos linux-cachyos-headers || { warn "Kernel upgrade issues."; }
systemctl --user disable --now steamos-manager.service 2>/dev/null
sudo systemctl disable --now steamos-manager.service 2>/dev/null
sudo systemctl disable --now inputplumber.service 2>/dev/null