Apple released Mac OS X Lion on July 20, 2011, the eighth major release of the world’s most advanced operating system with more than 250 new features, is available today as a download from the Mac App Store.
May 26, 2012 How To Install Mac OS X Lion 10.7.4 Retail On Intel/AMD PC (Image Download) MrZackehhSoul. XCode can be used and installed via the App Store. Sep 03, 2015 Very shortly, in this article, we show 3 possible ways to download Yosemite 10.10.DMG, then convert Yosemite.DMG to Yosemite.ISO (available solutions in both Mac OS X and Windows). I, Get Yosemite directly from Apple store How to download OS X Yosemite installer from Mac App store?
- Sep 27, 2017 Erased the Internal SSD drive with Disk Utility and Installed Mac OS X 10.8 fresh. Booted newly installed Mac OS X 10.8 and opened App Store (App Store still works fine just a little slow rendering images). The Mac OS 10.8 App Store would ONLY download the 19MB High Sierra Installer AGAIN!!! So I proceeded with that.
- Aug 29, 2015 I purchased (yes, it stinks, but it was $20) a copy of Lion online. Just google search 'Mac OS X version purchase' and it pops up. They send you a few emails; just follow the instructions and they get you a redemption code (redeemable only at the mac app store on your computer, no disc, annoying).
Some of the fantastic features in Lion include new Multi-Touch gestures; system-wide support for full-screen apps; Mission Control, an innovative view of everything running on your Mac.
The Mac App Store, the best place to find and explore great software, built right into the OS; Launchpad, a new home for all your apps; and a completely redesigned Mail app.
Lion is the best version of OS X yet, and we’re thrilled that users around the world can download it starting today
“Lion makes upgrading a Mac easier than ever before; just launch the Mac App Store, buy Lion with your iTunes account, and the download and install process will begin automatically.”
Additional new features in Lion include
- Resume, which conveniently brings your apps back exactly how you left them when you restart your Mac or quit and relaunch an app.
- Auto Save, which automatically and continuously saves your documents as you work.
- Versions, which automatically records the history of your document as you create it, and gives you an easy way to browse, revert and even copy and paste from previous versions.
- AirDrop, which finds nearby Macs and automatically sets up a peer-to-peer wireless connection to make transferring files quick and easy.
Lion requires an Intel-based Mac with a Core 2 Duo, i3, i5, i7 or Xeon processor and 2GB of RAM. Lion is an upgrade and can be installed on all your authorized personal Macs.
The OS X Lion Up-to-Date upgrade will be available through the Mac App Store at no additional charge to all customers who purchased a qualifying new Mac system from Apple or an Apple Authorized Reseller on or after June 6, 2011.
Download Official Mac AppStore Lion Installer.
This can be used with Official Mac to Install or Upgrade Mac OS X Lion.
This can be used with Official Mac to Install or Upgrade Mac OS X Lion.
File this one under “Obscure problems that could ruin your day.” TidBITS reader Randy Singer alerted us that due to an expired certificate, OS X installers downloaded prior to 14 February 2016 won’t work.
The Apple Worldwide Developer Relations Intermediate Certificate is required for all apps in the Mac App Store, including OS X installers. When used to sign an app, the certificate enables OS X to confirm that the app has not been corrupted or modified by an attacker. This certificate expired on 14 February 2016, causing error dialogs and preventing some apps from launching. Most affected apps have already been updated with the new certificate. But if youdownloaded an OS X installer in case of trouble, you may be in for a surprise the next time you try to use it.
Happily, this is an easy problem to fix ahead of time:
- Delete any old OS X installers in the Applications folder or in other locations (be sure to look on external hard drives too; if the App Store detects an old installer, it won’t let you get a new one). These installers have names like Install OS X El Capitan and Install OS X Yosemite.
- Open the App Store app by choosing Apple menu > App Store.
- Click the Purchased tab. Enter your App Store password if prompted.
- Scroll down to the OS X installer you want and click Download.
The new installers are signed with a certificate that expires on 7 February 2023, so it will be quite a few years before Mac users are affected again.
Those who have created any bootable install disks for OS X will need to recreate them with the new installers. Dan Frakes wrote a guide to creating OS X 10.11 El Capitan install disks for Macworld.
There is one qualification to all this. Apple won’t allow a newer Mac to download versions of OS X that aren’t compatible with that Mac, so on a 27-inch iMac with Retina display, for instance, the App Store app refuses to let you download Mac OS X 10.7 Lion.
If you are in the middle of an OS X install and get tripped up by the expired certificate, Randy Singer offers a suggestion on how you can work around the problem quickly, without having to download a new installer:
Mac Os X 10.7.4 Installer Mac App Store Download
- In the OS X Installer, choose Utilities > Terminal.
- Enter
sudo date 0201010116
, press Return, and enter your password. - Quit Terminal and continue the install.
That Terminal command sets your system date to 1 February 2016 — before the certificate’s expiration — so the installer can continue. Once you have completed the installation, visit System Preferences > Date & Time to reset the system date. Thanks to Randy for the heads up on this issue and the workaround!
![Mac os x 10.7.4 installer mac app store won t open Mac os x 10.7.4 installer mac app store won t open](https://jiji-blog.com/wp-content/uploads/2016/01/10.10-Launchpad-980x612.jpg)
Mac Os X 10.7.4 Installer Mac App Store Mojave
As noted, this expired certificate affects more than just OS X installers — a number of Mac App Store apps suffered from it as well. If downloading a new version of an affected installer isn’t an option for some reason, Rich Trouton noted in 2012 that there’s an
-allowUntrusted
flag for the command line installer
utility that might help, as might Greg Neagle’s flatpkgfixer.py tool.As indicated by those posts from 2012, this is only the latest in a series of expired certificate snafus that have rendered Mac App Store apps unusable — the last one hit in November 2015 (see “The Mac App Store Is Breaking Apps,” 12 November 2015). Put bluntly, Apple needs to do a better job in managing its Worldwide Developer Relations Intermediate Certificate and alerting both users and developers to the implications of any expiration or revocation. Having this sort of sporadic failure is decidedly a strike against “It just works.”
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