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Alternatives to Pavtube HD Video Converter for Mac for Windows, Mac, Linux, Web, Xfce and more. Filter by license to discover only free or Open Source alternatives. This list contains a total of 25+ apps similar to Pavtube HD Video Converter for Mac. List updated: 6/5/2020 7:06:00 PM. When trying to convert a DMG to a ISO or CDR file for MacOS X, we have two options available. The first one is by using just Disk Utility, a preferred method if you don’t like working with Terminal. The second method is by using the command line by using Terminal. To keep the article complete, I’ve added a method for Windows and Linux as well.

• Convert Command Linux
• How To Install Linux On Mac
• Convert Mac App To Linux

Linux users who want to run Windows applications without switching operating systems have been able to do so for years with Wine, software that lets apps designed for Windows run on Unix-like systems.

There has been no robust equivalent allowing Mac applications to run on Linux, perhaps no surprise given that Windows is far and away the world's most widely used desktop operating system. A developer from Prague named Luboš Doležel is trying to change that with 'Darling,' an emulation layer for OS X.

'The aim is to achieve binary compatible support for Darwin/OS X applications on Linux, plus provide useful tools that will aid especially in application installation,' Doležel's project page states. Darwin is Apple's open source operating system, which provides some of the backend technology in OS X and iOS. The name 'Darling' combines Darwin and Linux. Darling works by 'pars[ing] executable files for the Darwin kernel.. load[ing] them into the memory.. and execut[ing] them.'

But there is a ways to go. 'Darling needs to provide an ABI-compatible [application binary interface] set of libraries and frameworks as available on OS X.. by either directly mapping functions to those available on Linux, wrapping native functions to bridge the ABI incompatibility, or providing a re-implementation on top of other native APIs,' the project page notes.

Doležel, who started Darling a year ago, described the project and its progress in an e-mail interview with Ars. Darling is in the early stages, able to run numerous console applications but not much else. 'These are indeed the easiest ones to get working, albeit 'easy' is not the right word to describe the amount of work required to achieve that,' Doležel said. 'Such applications include: Midnight Commander, Bash, VIM, or Apple's GCC [GNU Compiler Collection]. I know it doesn't sound all that great, but it proves that Darling provides a solid base for further work.'

Users must compile Darling from the source code and then 'use the 'dyld' command to run an OS X executable,' Doležel said. One roadblock is actually getting Mac .dmg and .pkg application files working on a Linux system. Because doing so isn't that straightforward, Doležel said, 'I've written a FUSE module that enables users to mount .dmg files under Linux directly and without root privileges. An installer for .pkg files is underway.'

Unix/Linux synergy

The fact that OS X is a Unix operating system provides advantages in the development process. 'This saved me a lot of work,' Doležel explained. 'Instead of implementing all the 'system' APIs, it was sufficient to create simple wrappers around the ones available on Linux. I had to check every function for ABI compatibility and then test whether my wrapper works, so it wasn't as easy as it may sound.'

Another lucky break not available to Wine developers is that Apple releases some of the low-level components of OS X as open source code, 'which helped a lot with the dynamic loader and Objective-C runtime support code,' Doležel noted.

But of course, the project is an extremely difficult one. Doležel isn't the first to try it, as Darling was initially based on a separate project called 'maloader.' Doležel said he heard from another group of people 'who started a similar project before but abandoned the idea due to lack of time.'

Doležel was actually a novice to OS X development when he started Darling, being more familiar with OS X from a user's perspective than a developer's perspective. 'I have personally looked for something like Darling before, before I realized I would have to start working on it myself,' he said.

Darling relies heavily on GNUstep, an open source implementation of Apple's Cocoa API. GNUstep provides several core frameworks to Darling, and 'the answer to 'can it run this GUI app?' heavily depends on GNUstep,' Doležel said. Doležel is the only developer of Darling, using up all his spare time on the project.

No reverse-engineering

Doležel isn't reverse-engineering Apple code, noting that it could be problematic in terms of licensing and also that 'disassembling Apple's frameworks wouldn't be helpful at all because Darling and the environment it's running in is layered differently than OS X.'

The development process is a painstaking one, done one application at a time. Doležel explains:

To improve Darling, I first take or write an application I'd like to have running. If it is someone else's application, I first examine it with one of the tools that come with Darling to see what frameworks and APIs it requires. Simple budget app for iphone. I look up the APIs that are missing in Apple's documentation; then I create stub functions for them and possibly for the rest of the framework, too. (Stub functions only print a warning when they are called but don't do any real work.)

The next step is to implement all the APIs according to the documentation and then see how the application reacts. I also add trace statements into important functions to have an insight into what's happening. I believe this is very much like what Wine developers do.

When things go wrong, I have to use GDB [GNU Debugger] to debug the original application.

It is rather unfortunate that Apple's documentation is often so poorly written; sometimes I have to experiment to figure out what the function really does. Many OS X applications seem to contain complete pieces of example code from Apple's documentation, presumably because one would have to spend a lot of time getting to understand how the APIs interact. This is why I appreciate open source so much—when the documentation is sketchy, you can always look into the code.

Years of development are needed. Similar to Wine, 'Having a list of applications known to be working is probably the best way to go,' Doležel said.

Convert Command Linux

Darling should work on all Linux distributions, he said, with the catch that 'many apps for OS X are 32-bit only, and installing 32-bit packages on a 64-bit Linux system could be tricky depending on your distribution. I personally use Gentoo Linux, so I'm gradually creating a Portage overlay that would compile Darling and all dependencies for both 32-bit and 64-bit applications.'

Doležel would like to bring Angry Birds, other games, and multimedia applications to Linux. Darling could potentially 'be used to run applications compiled for iOS,' he writes on the project site. This will also be a challenge. 'The intention is to support the ARM platform on the lowest levels (the dynamic loader and the Objective-C runtime),' he writes. 'Rewriting the frameworks used on iOS is a whole different story, though.'

Don't junk your old Mac hardware just because it can no longer get new software updates. Get some new life in your old Macs with the GNU/Linux operating system! We'll show you how to 'try it before you buy it' so to speak to see how a specific version of GNU/Linux, Ubuntu, will run on your aging Mac.

Why bother trying GNU/Linux on your Mac?

I have a late 2010 MacBook Air. It's not as fast or as optically pretty as my 5K iMac nor my iPad Pro for that matter. I do, however, use it daily. I'm writing this article on it. As old as it is, it's 'good enough' for what I use it for and I still prefer the keyboard on it to the one on more modern MacBooks.

My MacBook Air just made the cutoff for being compatible with the newly released macOS High Sierra. I'm happy to know that for at least one more year, I'll be able to get the latest and greatest doodads, bells and whistles, and more importantly, I'll get the latest security updates (good thing too as while I'll write this, we've just found out that WPA2 has been cracked and clients will need to be updated with security patches).

However, Apple at one point will deem this well working, useful, good-enough MacBook Air as unworthy of any more updates. And as I understand the reasons why my venerable MacBook Air can't be supported indefinitely, I still find it to be wasteful that a decent-enough, capable, and not to mention still functioning computer be put to pasture because of lack of software updates.

How To Install Linux On Mac

This is where GNU/Linux comes in. GNU/Linux is a free and open source operating system very similar in many respects to the under-pinnings of macOS. It comes with modern networking capabilities, web browsers, and content creation tools. Not only is it known to run well with older hardware, but you will also get many years of software and security updates that you'd likely miss out on if you were to remain on a macOS-only installation.

See how well Ubuntu Linux runs on your Mac

You needn't throw out the baby with the bathwater and wipe your old Mac's hard drive clean before trying it out. All you need is a USB drive of a least 2GB in size and an internet connection to get started. Here's how to do it.

Get your USB drive ready

1. Backup your Mac.
2. Launch Disk Utility.
3. Attach your USB key to your Mac.

4. Select your External USB device from the list of volumes. (BE VERY CERTAIN YOU SELECT THE PROPER DEVICE).

5. Click Erase to format your USB key.
6. Name your USB key.
7. Select MS-DOS (FAT) as the type of Format you wish to perform.

8. Click Erase.

Download the Ubuntu Linux installation file.

1. Go to the Ubuntu website.
2. Click Ubuntu Desktop.
3. Select the Ubuntu Linux version your prefer. If you want longterm support and stability, select Ubuntu LTS (recommended). If you prefer the latest software bells and whistles, select the non LTS Ubuntu.
4. Download the file.

Prepare your USB key to run Ubuntu Linux

We now need to make the USB drive capable of booting Ubuntu Linux with special software. Ubuntu recommends using Etcher.

1. Go to the Etcher website.
2. Download Etcher for macOS.
3. Install Etcher by double clicking the .dmg file you downloaded.
4. Launch Etcher.
5. Select the ubuntu install file known as an Image.
6. Choose the USB drive you prepared with Select Drive.

7. Click Flash to start the process.

Convert Mac App To Linux

Try Ubuntu Linux!

You're now ready to try Ubuntu linux by booting off of your newly created bootable USB key drive.

1. Leave your USB Key installed into a USB port on your Mac.
2. Click on the Apple Icon at the top left of your menu bar.
3. Select Restart.
4. When you hear the familiar 'Bing' sound press and hold the alt/option key.
5. You'll see the 'Startup Manager' and you can now select to boot from the EFI Boot disk.
6. Select Try Ubuntu Without Installing.
7. Tap Enter.

8. Ubuntu Linux will now boot up!

You'll be able to connect to Wi-Fi, browse the web, write up an article (or anything else you may want to do) without making any permanent changes to your existing hard drive. See how much you like it and you can eventually install Ubuntu side by side with your macOS install or go full bore with a Linux only installation (tutorials coming later).

What do you do with your old hardware?

I get a real kick out of repurposing old technology with new abilities. I really value the longevity of a computer system that can still run modern software. If I can keep it going beyond it's expected lifespan, I'm a happy camper. What's your take? What do you do with your old hardware? Let us know in the comments!

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