Is this going to be an April Fool's joke? Or just bad timing?
An update for the older set of PS3's to remove the 'Other OS' feature on April 1st, so if you have one, it'll be removed and a back up will be needed before installing the update.
Not choosing to install the update will mean you won't be able to sign in online, etc.
I don't use Linux on my PS3, but I know a lot of people do, and that seems like a crushing blow.