- DO YOU NEED TO KEEP DMG FILES AFTER INSTALL HOW TO
- DO YOU NEED TO KEEP DMG FILES AFTER INSTALL MAC OS X
- DO YOU NEED TO KEEP DMG FILES AFTER INSTALL INSTALL
- DO YOU NEED TO KEEP DMG FILES AFTER INSTALL UPDATE
- DO YOU NEED TO KEEP DMG FILES AFTER INSTALL UPGRADE
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DO YOU NEED TO KEEP DMG FILES AFTER INSTALL INSTALL
Install and Keep Package option doesn't keep.Installed Updates does not list previously installed updates.
DO YOU NEED TO KEEP DMG FILES AFTER INSTALL UPDATE
DO YOU NEED TO KEEP DMG FILES AFTER INSTALL MAC OS X
Can't start up from Mac OS X Install CD.Troubleshooting Tips and Hints: Installing Software Backing up Mac OS X: Hardware strategies.Backing up Mac OS X: Utilities for volume backups.Understanding Image, Installer Package, and Receipt Files īacking Up and Restoring Mac OS X Volumes Updating from the Installer package (.pkg) file.Cautions regarding extracting files from update packages.Copying from the Mac OS X Install discs.Getting Mac OS 9 onto your Mac OS X Mac.Installation Type, Install, and Finish Up.
What You Need to Install and Run Mac OS X You'll also learn about upgrading Mac OS X and find recommendations about how best to back up Mac OS X. I start off by providing background information on installing Mac OS X for the first time, moving on to give more general information about installing, reinstalling, and restoring Mac OS X software. For all of these occasions, this chapter explains what needs to be done (and why) and offers solutions to a variety of potential problems.
DO YOU NEED TO KEEP DMG FILES AFTER INSTALL UPGRADE
Finally, as new versions of Mac OS X are released, you will need to upgrade your OS. Or, even more important, you may need to re-install Mac OS X (to fix problems). Even if that's the case, though, you may someday be called upon to install Mac OS X on an older Mac that's still running Mac OS 9.
DO YOU NEED TO KEEP DMG FILES AFTER INSTALL HOW TO
And even if you own an older Mac, the fact that you're reading this volume means you've probably already installed Mac OS X on it!įor that reason, I provided an overview of Mac OS X (in Chapter 2) before this description of how to install the operating system, believing that most of you are already up and running in Mac OS X. When you encrypt the folder, your Mac will prompt you to enter your password twice.Īlso, by default, DMG file read-only, but if you want a read-write DMG, change the “Image Format” option from “Compressed” to “Read/Write.Chances are, you were using Mac OS X even before you bought this book, since few Macs sold in the past few years can boot into anything else. Open up Disk Utility and choose File > New Image > Image from Folder (or blank image if you want to make an empty DMG file you can add stuff to later). In the window that pops up, select the folder you want to encrypt and click the “Choose” button.Īfter that, you’ll have the chance to configure some additional options, like where to save the file and whether to use encryption.
In addition to offering decent levels of compression, DMG files also support 128- and 256-bit AES encryption, which means you can make a compressed folder that’s password protected. Yes, you can, and doing so is more useful than you might think. If you want to convert the DMG to a different compressed format (like ISO, which is much like the DMG file format for Windows), a tool like dmg2img will get the job done. But, if you need to get one open, 7-Zip has support for extracting DMGs. There’s not much reason you’d want to use DMG files in Windows since they usually contain macOS apps and not Windows apps. Next, delete the DMG file itself unless you have a reason for keeping it around. Clicking either one of these opens the DMG file. The DMG mounts in two places: on your desktop and in the Finder sidebar under your hard drive. All you really need to do is double-click the DMG file to open it and mount it to your Mac. Well, luckily macOS does an excellent job of making everything easy. RELATED: Benchmarked: What's the Best File Compression Format? So How Do I Use DMG Files? Saving your data usage on downloads is always a good thing. And that’s second reason why macOS uses DMG files: they’re a compressed format (like a ZIP file) that makes your download smaller. This little window first goes through a phase of verifying the file, and then once it’s sure the file is good, moves on to decompressing it. This is what you see when the file is opening: DMG files include something called a checksum, which basically verifies that the file is 100% intact. The main reason macOS uses DMG files is to make sure the file downloaded properly and wasn’t tampered with.
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