Apsu · July 8, 2021 03:54 · Jun 13, 2013 · Jun 13, 2013 · Mar 19, 2013 · Nov 28, 2012
diff --git a/uefisetup.sh b/uefisetup.sh
@@ -18,7 +18,7 @@ parted /dev/sda # or gdisk or cgdisk or etc...
 # Make your other partition(s) as you see fit
 
 # Create ESP filesystem
-mkfs.vfat -F32 -n efi /dev/sda1
+mkfs.vfat -F32 -n efi /dev/sda1 # -F## is not required on most firmwares; FAT12/16 usually work
 
 # In this example, I'm using btrfs
 mkfs.btrfs -KL root /dev/sda2

diff --git a/uefisetup.sh b/uefisetup.sh
@@ -12,9 +12,8 @@
 # If you're using an actual CD burned from the official Arch ISO, just make sure you've booted it in UEFI mode
 
 # Assuming /dev/sda is the target disk
-cgdisk /dev/sda
+parted /dev/sda # or gdisk or cgdisk or etc...
 # Make a partition of type EF00 (EFI System Partition, or ESP)
-# Minimum size I can get without complaints from mkfs.vfat is 64M
 # Might want to name it something useful like "efi"
 # Make your other partition(s) as you see fit
 
@@ -35,19 +34,12 @@ mount -o noatime /dev/sda1 /mnt/boot # See above
 # Install as per usual, but snag grub-efi
 pacstrap /mnt base base-devel grub-efi-x86_64
 
-# Super important, before chroot!
-modprobe efivars
-
 # Facestab needfuls
 genfstab -pU /mnt >> /mnt/etc/fstab
 
 # Chroot, and gimme some bash plox
 arch-chroot /mnt /bin/bash
 
-# Genfstab does the wrong thing when you have a FAT32 partition mounted
-vi /etc/fstab
-# Modify /dev/sda1 options to just "noatime"; remove all the other codepage/etc options
-
 # Do other installation needfuls
 # ...
 

diff --git a/uefisetup.sh b/uefisetup.sh
@@ -13,21 +13,21 @@
 
 # Assuming /dev/sda is the target disk
 cgdisk /dev/sda
-# Make a partition of type EF00 (EFI System Partition)
+# Make a partition of type EF00 (EFI System Partition, or ESP)
 # Minimum size I can get without complaints from mkfs.vfat is 64M
 # Might want to name it something useful like "efi"
 # Make your other partition(s) as you see fit
 
-# Create EFI System Partition (EF00) filesystem
+# Create ESP filesystem
 mkfs.vfat -F32 -n efi /dev/sda1
 
 # In this example, I'm using btrfs
 mkfs.btrfs -KL root /dev/sda2
 
 # Mount the needful -- note the btrfs-specific mount options
 mount -o ssd,discard,noatime,compress=lzo /dev/sda2 /mnt
-mkdir -p /mnt/boot/efi
-mount -o noatime /dev/sda1 /mnt/boot/efi
+mkdir -p /mnt/boot # Or /mnt/boot/efi if you *only* want the grub binary on the ESP
+mount -o noatime /dev/sda1 /mnt/boot # See above
 
 # Networking stuff
 # ...

diff --git a/uefisetup → uefisetup.sh b/uefisetup → uefisetup.sh
diff --git a/uefi-setup.sh → uefisetup b/uefi-setup.sh → uefisetup
diff --git a/uefi-setup.sh b/uefi-setup.sh
@@ -1,5 +1,11 @@
-#!/bin/bash
-
+# **************** READ THIS FIRST ******************
+#
+# This is not a script for you to run. I repeat, do not download and run this!
+#
+# This is only a guide to show the required steps for successful UEFI + GRUB2 installation
+# Many of the choices are examples or assumptions; don't blindly type shit into your machine
+# until/unless you at least read the comments around each command
+#
 # These steps assume you've booted in UEFI mode by preparing your USB stick per these instructions:
 # https://wiki.archlinux.org/index.php/UEFI#Archiso
 #

diff --git a/uefi-setup.sh b/uefi-setup.sh
@@ -15,10 +15,10 @@ cgdisk /dev/sda
 # Create EFI System Partition (EF00) filesystem
 mkfs.vfat -F32 -n efi /dev/sda1
 
-# Assuming a single btrfs root
+# In this example, I'm using btrfs
 mkfs.btrfs -KL root /dev/sda2
 
-# Mount the needful
+# Mount the needful -- note the btrfs-specific mount options
 mount -o ssd,discard,noatime,compress=lzo /dev/sda2 /mnt
 mkdir -p /mnt/boot/efi
 mount -o noatime /dev/sda1 /mnt/boot/efi

diff --git a/uefi-setup.sh b/uefi-setup.sh
@@ -2,6 +2,8 @@
 
 # These steps assume you've booted in UEFI mode by preparing your USB stick per these instructions:
 # https://wiki.archlinux.org/index.php/UEFI#Archiso
+#
+# If you're using an actual CD burned from the official Arch ISO, just make sure you've booted it in UEFI mode
 
 # Assuming /dev/sda is the target disk
 cgdisk /dev/sda

diff --git a/uefi-setup.sh b/uefi-setup.sh
@@ -36,6 +36,10 @@ genfstab -pU /mnt >> /mnt/etc/fstab
 # Chroot, and gimme some bash plox
 arch-chroot /mnt /bin/bash
 
+# Genfstab does the wrong thing when you have a FAT32 partition mounted
+vi /etc/fstab
+# Modify /dev/sda1 options to just "noatime"; remove all the other codepage/etc options
+
 # Do other installation needfuls
 # ...
 

diff --git a/uefi-setup.sh b/uefi-setup.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+# These steps assume you've booted in UEFI mode by preparing your USB stick per these instructions:
+# https://wiki.archlinux.org/index.php/UEFI#Archiso
+
+# Assuming /dev/sda is the target disk
+cgdisk /dev/sda
+# Make a partition of type EF00 (EFI System Partition)
+# Minimum size I can get without complaints from mkfs.vfat is 64M
+# Might want to name it something useful like "efi"
+# Make your other partition(s) as you see fit
+
+# Create EFI System Partition (EF00) filesystem
+mkfs.vfat -F32 -n efi /dev/sda1
+
+# Assuming a single btrfs root
+mkfs.btrfs -KL root /dev/sda2
+
+# Mount the needful
+mount -o ssd,discard,noatime,compress=lzo /dev/sda2 /mnt
+mkdir -p /mnt/boot/efi
+mount -o noatime /dev/sda1 /mnt/boot/efi
+
+# Networking stuff
+# ...
+
+# Install as per usual, but snag grub-efi
+pacstrap /mnt base base-devel grub-efi-x86_64
+
+# Super important, before chroot!
+modprobe efivars
+
+# Facestab needfuls
+genfstab -pU /mnt >> /mnt/etc/fstab
+
+# Chroot, and gimme some bash plox
+arch-chroot /mnt /bin/bash
+
+# Do other installation needfuls
+# ...
+
+# Bootloader install
+grub-install
+
+# Can check/modify UEFI firmware entries
+efibootmgr # -t 0 for timeout, -b xxxx -B xxxx to delete, etc
+
+# Generate grub.cfg
+grub-mkconfig -o /boot/grub/grub.cfg
+
+# Exit chroot
+exit
+
+# Rebooten Sie!
+reboot