diff --git a/log/2024-03-26.md b/log/2024-03-26.md
index 09c5bd6..a57607a 100644
--- a/log/2024-03-26.md
+++ b/log/2024-03-26.md
@@ -350,6 +350,15 @@ fn panic(_info: &core::panic::PanicInfo) -> ! {
 # Building the kernel
 To build the kernel I just run `cargo build` in the `kernel` directory. This will produce a binary called `kernel/target/i686-bare-metal/debug/kernel.elf`. I now have a multiboot enabled kernel :)
 
+# Grub
+Now to turn the kernel into a ISO file with a bootloader, I used grub. To configure grub I needed to create a directory for it. I made `build/isodir/boot/grub/grub.cfg` containing this:
+```
+menuentry "geos" {
+	multiboot /boot/geos.bin
+}
+```
+Then I copied `kernel/target/i686-bare-metal/debug/kernel.elf` to `isodir/boot/geos.bin`. Then I ran `grub-mkrescue -o build/geos.iso build/isodir` to make an ISO containing my OS and grub. Yippee
+
 # File structure
 ```
 geos/