| 12
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 
 | mkdir /mnt/1
 mkdir /mnt/2
 mkdir /mnt/3
 
 local dev="sdb"
 umount ${dev}*
 parted -s ${dev} mklabel gpt
 parted -s ${dev} mkpart ESP fat32 1MiB 301MiB set 1 esp on
 parted -s ${dev} mkpart boot ext4 301MiB 701MiB
 parted -s ${dev} mkpart primary ext4 701MiB 100%
 
 mkfs.vfat -F 32 ${dev}1
 mkfs.ext4 -F ${dev}2
 mkfs.ext4 -F ${dev}3
 
 local boot_dir=/mnt/1
 local grub_boot=/mnt/2
 local target=x86_64-efi
 grub-install --efi-directory=${boot_dir} --boot-directory=${grub_boot}  --target=${target}  ${dev} --removable  --bootloader-id=ubuntu
 
 |