System Requirements for Mac OS X Lion 10.7. Technical Details for Mac OS X Lion 10.7.5 When the Mac OS X installation finishes with the disc, restart your computer. The first thing to note is that this latest OS X version is designed to support any Mac system that works with the Mountain Lion and currently runs OS X 10.6.8 or a later variation.
When prompted to choose a destination disk, select your preferred location and click Install. This article will tell you how to upgrade to Mac OS X 10.9 Mavericks. Follow the on-screen prompts to read and accept the license agreement and begin the installation.
Open the Software Update page in the System Preferences. It’s a good idea to tell your Mac to update macOS automatically, so you never need to worry about missing an important update.
You can also Download Mac OSX Lion v10.7.4DMG Free. In summary, OS X Lion 10.7.5 got all the necessary tools and features to provide more creative, secure and powerful working environment to its users. This update also brings improved Wi-Fi reliability for the iMac. Loin users now enable automatically logging into a NIS account. Another enhanced features in new Lion that most of the users love is full-screen mode. It’s basically an iteration of Expose, the desktop-management tool that shrinks and spreads the applications all over the screen so users can switch between them easily. In the new updated version of OS X Loin 10.7.5 now advanced interface-related feature included that is Mission Control, which has nothing to do with the iPad.
I'm trying to install a free utility (Caffeine) and I get the same problem: the spinning cursor, but no actual progress.An amazing update in this version is improved Apple’s screen management tool. The problem seems to be with the App Store. So - without access to the purchase record of the machine, but with admin privileges, how can I see what is going on? Ideally, how can I upgrade this machine to Yosemite? I've looked at this answer but I find that the CRL is already set to "off". Forcing destination format to ARGB_8 for CG_Context". I've found the Console Messages, but the only thing I see there is "This isn't a bitmap context. Leopard is still rather usable for most things, though, so keep that G5 around After all, people still use Tiger after its official support has completely ended. You can try running a Linux distro on it, if you really need to, once Leopard's support completely ends.
I do have admin privileges on the machine. Bloodstar said: Your G5, as stated, pretty much maxes out at 10.5.8. An internet search told me to check the "Purchases" tab on the App Store, but for that I need my boss's password. The next day, after more than 20 hours, I still saw the spinning cursor. I thought that maybe it was just a huge download, so I left it on for the night. When I try the update to Yosemite, though, I get the spinning cursor and it stays that way. I first did the "Software Updates" which was ready in a few minutes. The "About this Mac" gives me the following information: I have an old Mac, currently running Mac OS X 10.6.8 "Snow Leopard" that I must upgrade to OS X 10.10 "Yosemite".