1. Prerequisites
Ensure you have an EFI System Partition mounted and GRUB2 installed.
2. Install
Example (adjust device and mount):
mkdir -p /boot/efi
mount /dev/sdX1 /boot/efi
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Slackware
3. Generate menu
Create the configuration file:
grub-mkconfig -o /boot/grub/grub.cfg
4. Verify
Check the menu entries:
grep -A3 menuentry /boot/grub/grub.cfg
Quick checklist
[ ] Steps completed
[ ] Config updated
[ ] Service tested
[ ] Restart/rollback ready
[ ] Logs checked