Will Maverics run properly on an 2008 imac 2,4Ghz with 2go ram?
Your machine can accept 4GB of RAM (2 -2GB modules) or 6GB (1 - 4GB and 1 -2GB) put you'll have to put both in yourself (easy really, there is YouTube videos how) or have a local tech do it.
Utilizes folder > System Profiler > Model Identifier
If iMac 7,1 then
2 - 200-pin PC2-5300 (667MHz) DDR2 SO-DIMM
If iMac 8,1 then
|Memory Slots||2 - 200-pin PC2-6400 (800MHz) DDR2 SO-DIMM|
Crucial.com is your place to buy tested, quality RAM, I advise it as they make the RAM for Apple and others.
If something else, then download the free Mactracker and look up your model and RAM specs.
You will need at least 4GB to run other software well, 2GB is the bare minimal and not advised for 10.7 and up.
Another thing, your machine is quite dated and if a iMac 7,1 then it's considered vintage, which is nearly done for.
So a iMac 8,1 isn't too far from that same status.
Your no longer covered by AppleCare, if something goes wrong and the upgrade bricks firmware or drivers because of a flaw in the logicboard or video card, it could mean your buying a new machine prematurely as the cost to fix it would be too high for the current value of the machine. If Apple is even fixing those machines at all now.
So your taking your chances. If your happy on Snow Leopard (you should be on 10.6.8) then remain there as it's 25% market share still and getting updates (no version changes though)
Perhaps now is the time to consider getting a new machine with Mavericks 10.9 already installed, then easing into it while using the older machine for PowerPC based software that will not run on 10.7 and up.
Apple provides 90 days of support with a new box, and up to three years with paid AppleCare, that will assist in your "transition" to Mavericks.
I think the dual machine option is your best choice, rather than upgrading a old box and losing your PPC software.
If you don't like the new OS X, you can return the machine also.