diff --git a/README.md b/README.md
index ba1f52e..0c77827 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,34 @@ We expect minimal prep on your end. Please make sure that before execution the f
 - The `EF00` EFI partition is mountable, in practical terms this usually only means it has a file system.
 - No ZFS zpool exists
 
+### How to prep
+
+On a blank example disk `/dev/sda` you can fulfill the requirements (One `EF00` partition with a file system plus one `BF00` partition) for example like so:
+```
+sgdisk --new '1::+100M' --new '2' --typecode '1:EF00' --typecode '2:BF00' /dev/sda
+mkfs.vfat /dev/sda1
+```
+> `--new '1::+100M'`: Create partition number `1`. The field separator `:` separates the partition number from start sector. In this case start sector is unspecified so start sector sits at whatever the system's default is for this operation. On a blank disk on an Arch Linux live CD ISO image this will default to sector `2048`. Partition ends at whatever the beginning is `+100M` meaning plus 100 Mebibytes.
+>
+> `--new '2'`: Create partition number `2`. Both field number 2, the start sector, and field number 3, the end sector, are unspecified, there's no field separator `:`. Field number 2 will be the first free sector - in this case right after partition 1 - and field number 3 will be end of disk. Thus partition `2` will fill the remaining free disk space.
+>
+> `--typecode '1:EF00'`: Partition 1 gets partition type code `EF00`, an EFI system partition.
+>
+> `--typecode '2:BF00'`: Partition 2 gets partition type code `BF00`, an Solaris root partition.
+
+The result will be something like this at which point you can start the `setup.sh` script, see [How to run this?](#how-to-run-this) below for more details.
+```
+# lsblk --paths 
+NAME         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
+/dev/loop0     7:0    0 688.5M  1 loop /run/archiso/airootfs
+/dev/sr0      11:0    1 810.3M  0 rom  /run/archiso/bootmnt
+/dev/sda     202:0    0    10G  0 disk 
+├─/dev/sda1  202:1    0   100M  0 part
+└─/dev/sda2  202:2    0   9.9G  0 part 
+```
+
+## ZFS dataset layout
+
 The script will create a single ZFS zpool `zpool` on the `BF00` partition with dataset child `zpool/root` which itself has one child `zpool/root/archlinux`, that's where Arch Linux gets installed. Parallel to `zpool/root` it'll create `zpool/data` with a `zpool/data/home` child dataset that gets mounted at `/home`.
 
 The script will use the `EF00` partition to install a ZFSBootMenu EFI executable if `efibootmgr` says that no such `ZFSBootMenu` entry exists. If ZFSBootMenu gets added to the EFI partition it'll become primary boot option.