Can I install OS X on a failing SSD? I have a failing SSD in my Mid-2009 MacBook Pro (5,4) that I'd like to install OS X on. It's only temporary because I'll be ordering a new SSD in a couple of weeks.

The OS X installer rightly alerts me that the drive is failing so I should replace it - but I'm wondering if there's any way to get around this alert and install it anyway?
I can't offer much advice about the SSD in question given the very limited information you've shared about it.

However, I suggest you try installing OS X onto a USB key (preferably a fast USB 3 one) or SD Card (slower; don't recommend). It'll make migrating your files to your new SSD easier. Just be careful of the protruding hardware!