After my System Rescue Disc, that was delievered with my new Acer Aspire One, just did not want to work, I searched the web for a usb-stick image and a possibility to install the system from scratch without a cd!
For my solution you need a running GNU/Linux system, a usb stick (at least 2GB) and the usb-image.
Where to find an image:
or look for a torrent:
Once you've downloaded the image, plug-in the usb stick, open a terminal and go root by typing 'su'.
In the Folder where the image is, type:
'zcat aa1_usb_recovery_image.gz > /dev/sda'
In my case the usb stick is 'sda', to find out what's in your computer, type fdisk -l.
And voilà your bootable usb recovery stick is done!