For those dual booting between OS X Mountain Lion and OS X Lion, or any other two versions of OS X for that matter, there comes a time when you inevitably want to remove one of the operating systems. For this walkthrough we’ll assume the boot partition you want to delete is one of the developer previews of OS X Mountain Lion but it could be any other OS X boot volume as well.

It would be a wise idea to backup your Mac before proceeding, you will be editing the partition map of the drive and there is always a possibility something could go wrong.

From OS X Lion:

1. Open Disk Utility and select the primary hard drive
2. Click on “Partition”
3. Select the “Mountain Lion” partition and click the [-] button to delete the partition



4. Confirm the partition removal and quit Disk Utility
5. Reboot Mac OS X and hold down the Option key during boot, select “Recovery” from the boot menu
6. Open Disk Utility and select the hard drive, again selecting the “Partition” tab
7. Click and drag the partition resizer all the way to the bottom, then click “Apply” and “Partition” to confirm resizing (*see below if you get a “Partition Failed” error)



8. Reboot Mac OS X as usual

* If you encounter a “Partition Failed” error resolve it by running fsck from single user mode:

• Hold Command+S at startup and type “fsck -fy”
• Reboot OS X as usual, then launch Disk Utility to resize the partition

When Mac OS X reboots the partition space that used to be allocated to OS X Mountain Lion will now be allocated back to the primary operating system, OS X Lion.

If you own an iPhone that is not part of a contract with AT&T, you can now officially unlock the device for use on other networks. We’ve discussed this before and our previous guide on unlocking the iPhone through AT&T focused on calling a special direct line, but now we’ll show you how to unlock an iPhone entirely through the web with the help of AT&T’s online technical support chat. This method is extremely quick, there are no wait times, and it’s easier for international users or for those without access to an active phone line.

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Need to quickly return to the top of an app, web page, or document, on your iPhone or iPad? This trick is for you!

The next time you have scrolled far down on a web page in Safari, at the bottom of a Contacts list, deep down in Mail, or just buried down the screen of any other iOS app, you can use a neat tap trick to instantly return to the very top and scroll to the beginning again, without having to swipe a bunch.

This is an extremely handy navigation tip that works great on iPhone, iPad, and iPod touch. It’s easy to use, but it’s certainly hidden and not obvious, so if you’re unfamiliar with this scroll-to-top trick don’t be surprised.

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It’s rare to find a Mac user that doesn’t have other Apple gear, and this Mac setup from Steve B is no exception. The setup includes a little bit of everything:

• 21″ iMac (late 2011)
• 13″ MacBook Pro (late 2011)
• iPad (3rd gen)
• iPhone 4
• iPod touch (1st gen)
• iPod Touch (latest gen)
• iPod Shuffle (1st gen)
• iPod Shuffle (latest gen)
• Magic Mouse
• Wireless Keyboard
• Apple TV (2nd gen)
• AirPort Extreme

Like Mac pron? Who doesn’t! Check out more Mac setups, and don’t forget to submit your own Apple gear shots to osxdailycom@gmail.com, please take a decent picture, include a list of hardware shown, and include a brief mention of what you use the gear for.

Many iPad, iPhone, and iPod touch users are annoyed with a constant message asking to “Verify iCloud Password: iCloud Backup requires that you verify your password.”, the popup dialog shows up randomly but most often when unlocking a device after periods of inactivity.

Clicking OK and entering the password makes it go away for the time being, but it generally comes right back after another period of inactivity.

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Don’t like the dark user interface and color scheme of the Photoshop CS6 beta? You can easily change it by cycling through four different theme choices, ranging from the default darkest grey, dark grey, medium grey, and light gray.

Hit Shift+Function+F2 to lighten the Photoshop UI or Shift+Function+F1 to darken the interface elements. If you’re averse to keyboard commands, you can find the interface options within Photoshop Preferences as well.

This tip comes to us from the unofficial Photoshopsupport.com, thanks for sending it in Max!

Most Macs have multi-touch capabilities these days, allowing for gestures to perform common tasks that would otherwise require keyboard shortcuts or additional clicking about. To use the gestures, you’ll obviously need a Mac with multitouch capabilities, that means either a newish laptop with a trackpad, Magic Trackpad, or Magic Mouse.

Some gestures require modern versions of macOS, whether that’s Catalina, Sierra, OS X Lion, Mountain Lion, Mavericks, or later to use, and some gestures may have to be enabled manually in the System Preferences > Trackpad control panel.

Without further ado, here’s a bunch of helpful gestures for Mac OS X and commonly used Mac apps…

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Are you a gamer? Toss your plans out the window for the next few days because Diablo 3 is free to play all weekend long. Dubbed an “open beta”, the free weekend is intended to help Blizzard load test the Diablo III game servers before the official public release on May 15. You’ll be able to play the game from today (April 20) at noon until Monday, April 23 at 10AM PST, with complete access to all five character classes up to level 13.

Playing Diablo 3 Open Beta is completely free for both Mac OS X and Windows users, here’s what you need to get started:

• Battle.net account (free to sign up)
• Create a BattleTag
• Download the game client and install it before April 23 (free)
• Hardware that meets the Diablo III system requirements for Mac or PC

Whether you’re a fan of the Diablo series or just Blizzard games in general, this is a great chance to get an early look at the game. Likewise, it’s also a good opportunity to see if you like Diablo 3 before shelling out for the full paid version when it comes out next month.

Don’t freak out if you or someone you know accidentally deleted an app from an iPhone or iPad, because they can be easily redownloaded and restored at anytime through either of these simple processes.

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Running out of disk space is no fun and Mac users with smaller drives need to be particularly aware of available disk space. The Mac OS X Finder Search feature can be used to find large files but if you’re really serious about managing disk space and tracking down unnecessary large files and folders, you should use a free tool called OmniDiskSweeper.

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Transferring photos from a computer to the iPad is very easy with the help of iTunes. To get started, you’ll need either a Mac or PC with iTunes, a USB connector cable for the iPad, and a folder containing the pictures you want to transfer over to the iPad.
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Apple has released OS X Mountain Lion Developer Preview 3 to those registered with the Mac Developer program. The new build comes as 12A178q and includes many bug fixes, though it still includes a fairly lengthy list of known issues and bugs. This is the third beta release of OS X Mountain Lion, which currently has a rough public release date of “Summer” .

Developers can download OS X Mountain Lion DP3 from the App Store, though logging in through the developer center is necessary in order to receive a redemption code.

Due to stability issues and future upgrade problems, Mountain Lion Developer Preview should not be the primary operating system on a Mac. Follow a guide to set up a dual boot system between OS X 10.8 Beta and the more stable OS X 10.7 build for best results.

Like to learn new things, preferably from world class experts? Then you’ll like Coursera, a new organization from which several prominent universities aim to offer free high quality online courses to anyone, anywhere.

Princeton, Stanford, U Michigan, Penn, and UC Berkeley are among the schools currently participating in the program, and combined they offer a wide variety of classes on various topics. Whether you’re interested in Humanities, Social Sciences, Healthcare, Medicine, Biology, Math, Statistics, Economics, Finance, Business, Society, Networks, Information, or Computer Science, all classes are completely free and taught online.

The free Computer Science courses may be of particular interest to our readers, and those classes include: Algorithms I and Algorithms II, Automata, Compilers, Computer Architecture, Computer Science 101, Computer Vision: 3D Reconstruction to Visual Recognition, Computer Vision: Fundamentals, Cryptography, Design and Analysis of Algorithms I, Game Theory, Introduction to Logic, Machine Learning, Natural Language Processing, Networked Life, Probabilistic Graphical Models, Securing Digital Democracy I, and Software Engineering for SaaS.

You can see the full list of free course offerings at Coursera.org

Course length varies from 4 weeks to 12 weeks. A handful of classes start this month, and many more begin in May, June, July, August, September, November, while others are still listed as To Be Announced.

Education is a great thing, and Coursera looks to have a strong future. Hopefully they come out with an iPad app similar to Khan Academy for easier self-paced learning and for those who wish to follow along more casually.

If you like the idea of learning without a gigantic university-sized price tag, iTunes is another great resource for free classes and lessons, with videos and podcasts offering free foreign language lessons, free iOS 5 development classes, general iPhone development courses, and much more.

You can use a zoom-in feature on the hardware cameras included on iPhone, iPad, and iPod touch. The zoom trick is pretty easy to master but until someone shows you how to access it, zooming is hidden from the normal camera options. We’ll detail exactly how to zoom in and zoom out with the Camera on any iPhone, iPad, or iPod touch, running any version of iOS.

Here is how to activate and use zoom:

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Apple has released two notable iPhone 4S commercials that feature popular celebrities using Siri. The first TV ad shows Samuel L Jackson planning a special evening with his wife thanks to the help of Siri, and the second commercial shows Zooey Deschanel using Siri to manage a lazy rainy day. Both commercials can be viewed embedded below.

Samuel L Jackson “Date Night” iPhone ad:

Zooey Deschanel “Rainy Day” iPhone 4S ad:

Everyone gets emails filled with links, but what do you do when an incoming message includes a potentially dubious URL that you aren’t quite so sure about? Rather than crossing your fingers and blindly clicking the link to open in the default web browser, try this tip out to get a preview of the URL directly in the Mail app of Mac OS X.

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The Apple ][ is celebrating it’s 35th birthday.

Originally demoed by Steve Jobs and Steve Wozniak at a computer fair on April 16 and 17, 1977, the Apple II was the machine that put Apple on the map and then went on to catapult the personal computer revolution.

What better way to celebrate one of the original PC’s monumental birthdays than to use an Apple II simulator in Mac OS X?

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Whether you’re feeling the pinch as hard drive space runs low or you’re just wondering where all your disk space went, it’s easy to find large files in Mac OS X by using the built-in search tools. You don’t need to use any third party tools here, instead you’ll rely on search operators and the excellent Spotlight locating functionality that is a core feature of all Macs.

If you’ve never used these specific features of the Mac search function before, you’ll find it’s simple to do, just follow these steps to locate files and items based on their size.
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