Jay Versluis

Jay is a medical miracle known as Super Survivor. He runs several YouTube channels and websites, and he's also live on Twitch sometimes. To support him on his mission to make the world a better place, you can support him on Patreon or buy him a coffee.

How to fix permission problems when restoring folders from Time Machine Backups

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Airport TimeCapsuleI had an odd problem the other day: I wanted to restore a fairly large folder from my new AirPort TimeCapsule. But the restore always stopped at one particular file, with an error message about permission problems.

The folder in question was about 4GB in size and contained just over 10.000 files in total. I was baffled! Time Machine had never failed me before, so what was going on out of a sudden?

Well I guess it’s a computer, and things just go wrong sometimes. Thanks to Apple Support this problem is now solved – and I thought I’d share the insight, both with you all and my future self.

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How to use yum-complete-transaction

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Tux-says-YUMEvery once in a while it can happen happen that use use “yum update” to update your Linux system.

Usually this works without a hitch, but you may have come across a message such as this:

Setting up Install Process
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
The program yum-complete-transaction is found in the yum-utils package.

But what does this mean, and how do we alleviate this?

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How to mount additional disk space in 1and1’s Cloud Server

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Tux Linux IconI’ve just ordered a new Dynamic Cloud Server with 1&1 with a total of 800GB disk space. They rock, but they come with a minor inconvenience: due to the way these server instances are allocated, 1&1 do not automatically extend the partition for you – so you can’t actually start using the full amount you’ve ordered.

Here’s how to make use of the full disk space on a current file system:

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How to use Targets in Xcode

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Targets are an extremely yet totally undocumented feature of Xcode. They allow you to write code once, and then build multiple “versions” of the same code base. This makes maintenance and code updates extremely easy across more than “product”. I use those quotation marks because usually an “Xcode Project” equals a “Product” (such as one […]

How to define Preprocessor Macros in Xcode

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I’ve often wondered how to use those efficiently, and I’ve just found out how to do it. As always, they’re not difficult to implement – but not documented in a way that simple folk like me can understand it. Be that as it may… Preprocessor Macros can be useful if you’d like to compile two […]

How to check if your app is running on an iPad or an iPhone

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Here’s how we check that: // if we’re an iPad if ([[UIDevice currentDevice]userInterfaceIdiom] == UIUserInterfaceIdiomPad) { // do some iPad or iPad Mini specific stuff } else { // we’re on iPhone or iPod Touch } Alternatively you can check the same method for UIUserInterfaceIdiomPhone instead, which is returned when you’re on an iPhone or […]

How to hide navigation elements with swishy animations

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You can hide (and show) navigation bars and toolbars from your UINavigationController with extremely funky animations, much like we see in the Photos app on iOS. In the app, when you single-tap the screen, both top and bottom toolbars disappear. Here’s how we do that: Provided you have your view controller embedded in a UINavigationController, […]

Managed Object Context arrives empty when passed via a segue in iOS 5

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I’ve just found that passing an NSManagedObjectContext object via a segue in iOS 5 doesn’t work: the property remains empty. In iOS 6 on the other hand this isn’t a problem: the context arrives just like any other property would, and as logic would dictate. Here’s code from an amended Utility Template app: – (void)prepareForSegue:(UIStoryboardSegue […]