# CachyOS Boot Troubleshooting (ASUS Motherboard)

### 1. Boot with ACPI Workarounds
# At the GRUB boot menu:
# - Press 'e' to edit the boot entry.
# - Find the line starting with 'linux' or 'linuxefi'.
# - Add one of the following options at the end (try one at a time):

acpi=off
acpi=ht
pci=noacpi
acpi=strict

# - Press 'Ctrl+X' or 'F10' to boot.
# If this works, make it permanent:

sudo nano /etc/default/grub

# Find this line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

# Modify it:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"

# Save & update GRUB:
sudo grub-mkconfig -o /boot/grub/grub.cfg

### 2. Update ASUS BIOS
# - Go to the ASUS support page for your motherboard.
# - Download the latest BIOS update.
# - Follow ASUS instructions for updating via EZ Flash in BIOS.

### 3. Install the LTS Kernel
sudo pacman -S linux-lts linux-lts-headers
sudo grub-mkconfig -o /boot/grub/grub.cfg
# Reboot and select the LTS kernel.

### 4. Disable Secure Boot & TPM
# - Enter BIOS (Press 'F2' or 'Del' at boot).
# - Navigate to: Boot → Secure Boot → Set to Disabled.
# - Navigate to: Advanced → Trusted Computing → Disable TPM.
# - Save & Exit.

### 5. Change SATA Mode (If Using a SATA Drive)
# - Enter BIOS ('F2' or 'Del' at boot).
# - Go to Advanced → SATA Configuration.
# - Change SATA Mode to AHCI.
# - Save & Exit.

### 6. Verify Installation Media (For Fresh Installs)
# If this is a new install:
# - Redownload the CachyOS ISO.
# - Reflash using Ventoy or Rufus (DD mode).
# - Try booting from a USB 2.0 port instead of USB 3.0.

### 7. Disable SGX in BIOS (If Available)
# - Enter BIOS ('F2' or 'Del' at boot).
# - Navigate to Advanced Settings.
# - Find 'SGX (Software Guard Extensions)' and disable it.
# - Save & Exit.

### Final Steps
# Try these in order:
# 1. Boot with kernel parameters.
# 2. Update BIOS.
# 3. Install the LTS kernel.
# 4. Disable Secure Boot & TPM.
# 5. Change SATA mode to AHCI.
# 6. Verify installation media.