Create file systems and mount devices (UEFI/GPT)

Now we need to format the file system. The UEFI partition must be formatted as FAT32

# mkfs.fat -F32 /dev/sdxY

Root must be formatted as ext4:

# mkfs.ext4 /dev/sdxY

Activate swap

# mkswap /dev/sdxY
# swapon /dev/sdxY

(Please replace sdxY with partition you created for swap, in my case it was sda3)

# mkswap /dev/sda3
# swapon /dev/sda3

It’s time to mount boot and root partitions. First, we mount root:

# mount /dev/sdxY /mnt

In my case it was sda2:

# mount /dev/sda2 /mnt

Create ‘boot’ directory to mount the UEFI partition:

# mkdir -p /mnt/boot

Mount the ESP to boot:

# mount /dev/sdxY /mnt/boot

In my case it will be:

# mount /dev/sda1 /mnt/boot

We are all set to proceed to installation.