After waiting almost a week, somebody finally stepped forward to help test out the .aos dualboot installation. Thanks Kirk. So here it is, the no-brainer dualboot installation instructions:
1) Install a patched firmware from archos.g3nius.org (see http://archos.g3nius.org/index.php?titl ... _DTI_Games
). It doesn't matter which version you are running, as long as you are running a patched firmware.
2) Download the dualboot installation file here: http://www.openaos.org/downloads/beta/f ... alboot.zip
3) Extract firmware_archos5-7_dualboot.aos and rename to firmware_archos5-7.aos. Copy to the root of the Data partition.
4) Either install from AVOS or boot into the Recovery menu (hold Vol+ during initial power-on) and install from there.
Your Archos device will reboot after installation and the boot menu should come allowing you to select either AVOS or openAOS Angstrom Linux. The first time you boot Angstrom will take a little longer as it is unzipping the rootfs image. This is running kevin's latest image (rev_199) and whatever AVOS you are running at time of install.
That's it! Welcome to the world of dualbooting and openAOS. Thanks go out to kevin_ and all the work he's put into this, as well as the rest of the openAOS team.
*edit - Changed download to .zip. Included notices for GPL software.