So you got a bunch of different openSUSE 12.2 live isos downloaded, to test them on a real machine you have to either burn them to CD/DVD or create live USB stick. Creating CD/DVD is a total waste after booting it once or twice. Creating bootable USB stick is a better thing to do, however openSUSE Hybrid iso creates USB stick that is not usable for any other purpose and the remaining space is locked till you make another partition, and even then the partition is not available on windows(tm).
Unetbootin is nice utility that can create bootable usb stick with vfat partition so the stick can be used to carry other data, however it is also limited in a sense that there cannot be more than 1 bootable image on it unless you know what exactly you need to edit. Other thing is that unetbootin no longer works with openSUSE live isos.
Thanks to a nice isofrom feature in KIWI, here is the solution that can create bootable openSUSE live USB stick on a fat partition. Huge advantage in using this is ability to add as many openSUSE isos you like on a stick, so you may have openSUSE-Edu*.iso, openSUSE-12.2-KDE*.iso, openSUSE-12.2-GNOME*.iso, something-from-susestudio*.iso all on one usb stick, with a nice graphical menu to boot from. Unlike openSUSE Imagewriter or Unetbootin, the stick has whole iso images not a bunch or files that cannot be used for anything else.
The code is here which you can fork and send in improvements, it would be nice if Unetbootin/Imagewriter devs integrate this feature.
Install via 1-click on openSUSE 12.2.
To use, plug in the usb stick with a vfat partition, find out which device it is by running fdisk -l then run the following command as root (su -)
live-fat-stick /path/to/openSUSE-distro.iso /dev/sdb1
Replace the path with the actual absolute path to the image and name of the iso to the actual name of the iso. Replace /dev/sdb1 to the device your USB stick shows up as. Wait till the script completes the required process at the end of which you will have a bootable stick. You can repeat the above command with another iso, it will show up at the end of the boot menu.
