UEFI INSTALL INSTRUCTIONS (EXPERIMENTAL) v.9.2.2 for refractainstaller-uefi 1. The easy way: If you already have a linux installation on the computer that boots uefi, and you plan to keep that linux, you can use this installer, but when you get to the part that says you're ready to chroot, just select OK, and you'll bypass that step. If you accidentally choose Chroot, you can still skip this step by simply exiting the terminal window that pops up. When the install is complete, reboot into your first linux and run update-grub, or do whatever you do to add a boot menu entry for the new installation. 2. The experimental, semi-manual uefi installation: Don't mess with this if you don't know what you are doing! These instructions are probably not complete and can't account for all the non-standard variations in uefi implementation used in motherboards. And this installer has had minimal testing. (It works great on my linux-only Toshiba notebook.) Be prepared to hose your system. Read this: http://www.rodsbooks.com/efi-bootloaders/index.html This iso will boot bios or uefi. To install on uefi hardware, run refractainstaller-uefi -d There is only Expert Install. Leave the box checked for "Do not install bootloader" Create efi partition if one does not already exist. It should be the first partition on the first hard drive. In gparted, make a fat32 partition, around 200-300MB (or bigger if that causes problems) and set the esr flag. (The boot flag is added automatically.) When the script pauses, the installed system is ready for you to install the bootloader. There are several choices: Chroot: Opens a terminal in the chrooted installation. If you have the grub-efi packages, run: dpkg -i grub-efi*.deb update-grub exit If grub-efi is already installed, you can run: grub-install (optionally add --bootloader-id=some-name) update-grub exit Install bootloader: This button will appear if grub-efi is installed. Selecting this will run grub-install and update-grub for you. There's no way to select a bootloader-id this way. It will be called 'devuan' (or another distro.) Copy files: This button will appear if grub-efi is not installed and the grub-efi deb packages are not found in the target root directory. If you have the packages somewhere else, this will let you select them and will copy them to the target for you. You can then install them with dpkg as described above in the chroot terminal. Continue: Will proceed whether or not you have installed a bootloader. If not, you will need to have another way to boot this installation. NOTE: This is the default if you just press ENTER. Abort: will exit the installer and abort the installation. Fully manual method (deprecated): These steps now get done for you if you press the Chroot button. ** ** Add an entry to /target/etc/fstab for the efi partition (probably /dev/sda1) ** /dev/sda1 /boot/efi vfat defaults 0 1 ** mkdir /target/boot/efi ** mount $efi_part /boot/efi ** chroot /target In the chroot terminal, run these commands --> --> dpkg -i /grub-efi*.deb # Install both packages! edit /etc/default/grub if desired. --> update-grub --> exit Then close the pause window and finish the installation.