If any essential OS X files become damaged or corrupted or are deleted or renamed If you replace your internal hard drive with a larger, faster, or solid state drive If you buy an external hard drive and want it to be capable of being your Mac's startup disk (that is, a bootable disk) If you have a catastrophic hard-drive crash that requires you to initialize (format) or replace your boot drive If your Mac is currently running any version of OS X except Yosemite
#R FOR MAC OS YOSEMITE MAC OS#
But you might find occasion to install, reinstall, or use it to upgrade, such as Mac Os Yosemite 10.10 Download And in a perfect world, that would be the case.
#R FOR MAC OS YOSEMITE INSTALL#
In theory, you should have to install Yosemite only once, or never if your Mac came with Yosemite preinstalled. The process in Yosemite is (compared with root-canal work, income taxes, or previous versions of OS X) relatively painless. That said, reinstalling OS X almost always corrects all but the most horrifying and malignant of problems. It's not the end of the world, but it's almost always inconvenient. Finally, you might have to reregister or reinstall some of your software.
#R FOR MAC OS YOSEMITE DRIVERS#
And you might have to reinstall drivers for third-party hardware such as mice, keyboards, printers, tablets, and the like. Reinstalling is a hassle because although you won't lose the contents of your Home folder, applications you've installed, or the stuff in your Documents folder (unless something goes horribly wrong or you have to reformat your hard drive), you might lose the settings for some System Preferences, which means you'll have to manually reconfigure those panes after you reinstall. So if you have to do a reinstallation, realize that this is more or less your last hope (this side of the dreaded screwdriver, anyway). You don't want to reinstall OS X if something easier can correct the problem. If nothing else fixes your Mac, reinstalling OS X could well be your final option before invasive surgery (that is, trundling your Mac to a repair shop). If you're thinking about reinstalling because something has gone wrong with your Mac, know that an OS X reinstallation should be your last resort. In this article, you discover all you need to know to install or reinstall OS X, if you should have to. If OS X Yosemite came preinstalled on your new Mac, you'll probably never need this article.
![r for mac os yosemite r for mac os yosemite](https://wayohoo.net/images/2014/Mac_OS_X_Yosemite_Desktop.png)
If OS X Yosemite came preinstalled on your new Mac, you'll probably never need this article.Immediately after the upgrade, when I opened R or RStudio I got a pop-up message saying that I needed to install Java 6. I recently 'upgraded' from OSX Mountain Lion to Yosemite and from R 3.1.3 to 3.2.Download the Yosemite installer from the Mac App Store and make sure it's in your main Applications folder (/Applications)-it's called Install OS X Yosemite.app.