stuff and things

README.md

@@ -0,0 +1,52 @@
+# rOSka
+
+Compile with `fasm boot.asm`
+
+## Reguirements
+
+Pentium or newer should have all the bells and whistles needed.
+
+In case you want all the details:
+- 32bit 80386 or newer CPU
+- VGA compatible graphics adapter
+  (640x480 graphics mode with 16 colours and a text mode)
+- BIOS (or CSM, can't take anything granted these days...)
+- RAM as I'm sure I'll just yank hard coded assumptions here and there
+  Like 1MB should be enough for now
+- Hard disk access requires extended BIOS support (i486 CPU?)
+  Youknow, we support big disk like here in modern times.
+- Floppies can't usually be accessed with extended calls, too bad.
+  As a workaround get USB or something and chainload with PLOP bootmgr
+  if direct USB boot is unavailable. Might make a floppy image at some
+  point.
+
+
+## Preparing a bootable disk
+
+- We use standard MBR, even on a floppy. Eat shit MSLosdows.
+- We use partition 1 as our partition. This is ext2. Again, deal with it.
+
+So make a new partition table, partition it, and format it on Lunix.
+Or Losdows, but there you're on your own!
+
+!!! WARNING
+    This will wipe the entire drive
+    Replace /dev/sdX accordingly and triplecheck
+
+```
+sudo parted -s /dev/sdX mklabel msdos
+sudo parted -s /dev/sdX mkpart primary ext2 0 100% --align cylinder
+sudo mkfs.ext2 -L rOSka /dev/sdX1
+```
+
+Now put the thinking part to the MBR preserving partitiontable
+```
+sudo dd bs=1 count=446 if=boot.bin of=/dev/sdX conv=notrunc
+```
+
+And wow, you have a disk with a filesystem that boots the fancy loader
+
+
+```
+TODO: set bootable flag in fdisk and use VBR instead of MBR?
+```