To use the ROMs openAOS provides you, you must change how your Archos device boots. [[BR]]
Installing a boot-menu will allow you to so to boot other OSes:
 * [wiki:SettingUpMultiRootGen8 Guide for generation 8] Android devices: 28, 32, 43, 70, 101 Internet Tablets;
 * [wiki:SettingUpMultiRootGen7 Guide for generation 7] Android device: Archos 5 Internet Tablet;
 * [wiki:SettingUpMultiRoot Guide for generation 6] devices: Archos 5 and 7  Internet '''Media''' Tablets.

The above guides provides information on how to install the boot menu, but also tells you how to install an OS. [[BR]]
Now you can enjoy using your dual-boot install: as an example, you can boot Android and Debian on the same device! [[BR]]
If you run into problems, you should check if we [wiki:IssueTracking know them already and report them if necessary]. [[BR]]
If further help is required, you can seek help on [irc://irc.freenode.net/openpma #openpma on irc.freenode.net] (you'll need an [https://grove.io/help/irc/irc-clients IRC client]).