If i put a different Operating System on my PS3 is it possilbe to get the PS3 operating system back later?

May be...

I'm thinking of putting Linux's Ubuntu on my PS3... but if i get bored or sick of Ubuntu is it possible to get my PS3 operating system back on it?

You never delete the PS3's original OS (XMB). The XMB is always there, and you can go back to it at anytime. You can't even boot PS3 games from Linux, so removing the XMB would basically make your PS3 useless.



When you install Linux you have to make a hard drive partition. One partition is for the PS3's XMB, and the smaller partition is for Linux. A simple Linux command will change the boot flag back to the XMB, and you can select to boot to "Other OS" in the PS3 settings.



If you get stuck in Linux you can esily reset your PS3 to default settings by holding the power button for about 5 seconds (you should hear 2 beeps) while booting it up. It will automatically go to the PS3 OS.

Yes, I don't know how but I saw a video that says if you change it to a supported OS then you can easily change the OS back to XMB. You can probably google it, I'm sure someone else thought of this question before.

once u do a new OS then no u wont be able to this is called modding ur ps3 u would have to some how make a back up off ur ps3's Operating system figure that out and u can i havny modded a ps3 yet so i dont no the details on how to but give it a try its ur ps3

Seriously... dont bother downloading it sucks so bad. Its slower than a 120 year old woman crossing the road!

And the only thing that you can do is surf the net, you cant play games like cs or anything. believe me, ive tried!