:: commit f32bea514752a7e53cfac1f7047a51fc26e49c7c

diff --git a/README.md b/README.md
index 6fe8a5df..a47e7dd5 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,41 @@
 # qloader2
 x86/x86_64 BIOS Bootloader
 
+### Supported boot protocols
+* Linux
+* stivale (qloader2's native boot protocol, TODO: write specification)
+
+### Supported filesystems
+* ext2 (root directory only)
+* echfs (root directory only)
+
+### Supported partitioning schemes
+* MBR
+* GPT
+
 ## How to use
 This repository contains a prebuilt version of qloader2 so building it won't
 be necessary.
 
-In order to install qloader2 on a device (which can just be a raw image file),
+In order to install qloader2 on a MBR device (which can just be a raw image file),
 run the provided `qloader2-install` script as such:
 
 ```bash
 ./qloader2-install ./qloader2.bin <path to device/image>
 ```
 
+If using a GPT formatted device, it will be necessary to create an extra partition
+(of at least 32K in size) to store stage 2 code. Then it will be necessary to tell
+the install script where this partition is located by specifying the start sector.
+
+```bash
+fdisk <device>    # Create bootloader partition using your favourite method
+./qloader2-install ./qloader2.bin <path to device/image> <start sector of boot partition>
+```
+
 Then make sure the device/image contains at least 1 partition formatted in
-echfs containing a `qloader2.cfg` file and the kernel/modules one wants to load.
+a supported filesystem containing a `qloader2.cfg` file and the kernel/modules one
+wants to load.
 
 An example `qloader2.cfg` file can be found in `test/qloader2.cfg`.
 
@@ -35,3 +57,17 @@ echfs-utils -m -p0 test.img import <path to file> <path in image>
 ```
 
 One can get `echfs-utils` by installing https://github.com/qword-os/echfs.
+
+## Building from source
+In order to hack qloader2, one must build the GCC toolchain from source first.
+
+To do so, run the `make_toolchain.sh` script from within the `toolchain` directory;
+keep in mind that the script takes `MAKEFLAGS` as an argument.
+
+```bash
+cd toolchain
+./make_toolchain.sh -j4
+```
+
+After that is done, simply run `make` in the root of the repo to generate
+`src/qloader2.bin`.