Hello.

1. Is there somewhere a good example/information about how to make a little OS that loads not from a discette but from usb-stick instead?
2. Where from to find info of how to make self made os installable into computer so that computer starts without any discette or usb-sticck or cd inserted for booting, and it gives you options of which os to load?

Thanks.

Here is how a usb-stick can be made to boot, first some are not bootable and some emulat a floppy (eg: fat12) other emulat a harddrive (eg: fat16/32), if they emulat a floppy, you can make them bootable with a bootable floppy image and a tool for putting image on usb-sticks.

Here you can get more details and tools:
http://www.weethet.nl/english/hardware_bootfromusbstick.php

PS: You will also need your bios to support booting from a usb-stick .

Thx for link.
But how can i do so, that my os installs into computer so that i am asked which os i want to boot? I should save some information into computer harddisk somewhere and if bios starts it sees that there is more than one os in the computer and it will ask which i want to load, the Win XP or my os. How to do it?

Thank you.

You will need a program like this : http://www2.arnes.si/~fkomar/xosl.org/

I will look this XOSL, thank you.