I have just installed(partially) gentoo on ps3 and I have no idea how to get back to the original ps3 operating system. I inserted the live cd and I switched the default operating sytem over too gentoo. I never actualy fully installed gentoo just whatever installs after you go to system/other operating system. So now when my ps3 starts up even when I take out the HDD the linux interface starts up and has two penguins at the top and it just says kboot: . My knowledge of linux is extremely limited so sorry about the discription. Your help would be very much appreciated.

kboot is the ps3 bootloader, you are looking at it's prompt.
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You should be able to boot from the game OS by selecting it in the PS3 System Menu.
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