The EFI BIOS in some hardware like HP Mini 5102 and Sony Vaio netbook doesn't support booting our MeeGo isohybrid images. Until either isohybrid or the EFI BIOS is fixed there is a simple workaround that involves modifying the image with the isohyrbid tool.
On any linux machine that has the isohybrid tool, execute:
$ isohybrid -offset 64 <image-name.img>
This modifies the isohybrid image signature inside the image to a deeper offset and allows most EFI BIOSes to properly recognize the boot sectors as plain iso9660, and subsequently boot normally.