One way to store or group files on a Mac is to create a Disk Image. A Disk Image is a file which has the properties of a separate hard drive or CD and allows for greater password protection and compression. It has a size limit and options for encryption to keep your files safe and secure. While there are a few applications that perform this task for you, it is recommended that you complete this process manually.
Create Dmg Of Mac Os X
This method may not sound optimal, but trust me, it works really well in practice. You can put the original DMG (DMG template) even under version control (e.g. SVN), so if you ever accidentally change/destroy it, you can just go back to a revision where it was still okay. You can add the DMG template to your Xcode project, together with all other files that belong onto the DMG (readme, URL file, background image), all under version control and then create a target (e.g. external target named "Create DMG") and there run the DMG script of above and add your old main target as dependent target. You can access files in the Xcode tree using $SRCROOT in the script (is always the source root of your product) and you can access build products by using $BUILT_PRODUCTS_DIR (is always the directory where Xcode creates the build results).
Result: Actually Xcode can produce the DMG at the end of the build. A DMG that is ready to release. Not only you can create a release DMG pretty easy that way, you can actually do so in an automated process (on a headless server if you like), using xcodebuild from command line (automated nightly builds for example).
My app, DropDMG, is an easy way to create disk images with background pictures, icon layouts, custom volume icons, and software license agreements. It can be controlled from a build system via the "dropdmg" command-line tool or AppleScript. If desired, the picture and license RTF files can be stored under your version control system.
I finally got this working in my own project (which happens to be in Xcode). Adding these 3 scripts to your build phase will automatically create a Disk Image for your product that is nice and neat. All you have to do is build your project and the DMG will be waiting in your products folder.
I want to consolidate my files from my iMac and external HDDs and transfer them to my new QNAP NAS. However, I want to retain the original file modification dates, so simply copy and paste will not work. Can I create an image of the folders only (not the entire disk) and restore these folders/files onto the NAS? If so, can I restore several images onto a single volume (partition) or will it overwrite the current contents of the volume?
The Disk Copy or Disk Utility feature for macOS can be used to create an encrypted disk image. Encryption means it requires a password to open or become available (to "mount"). An encrypted disk image acts as secure storage space and can be used like any other disk image file. It may be copied to or created on network volumes or removable media, including Zip drives, USB flash media, or FireWire hard drives. Each encrypted disk image is protected by a password. The following document explains how to create, mount, and unmount an encrypted disk image.Important: If you forget the password to your encrypted disk image, the data on that disk image cannot be recovered.
For this purpose I always create a virtual machine in VMWare Fusion, running the macOS version that I ran before the update.This comes with challenges though, since Apple, in their infinite wisdom, does not simply provide macOS install media (eg. a DMG or ISO file) so you can install another version of macOS. We have to create our own.
As far as I know, you can create this file in most of the user-accessible directories.I did it on the Desktop, but doing it in your Downloads directory may be a good (or even better) location as well.We need to tell Terminal first to go there:
This post explains how such DMG files with a customized look can be built.Moreover, a Makefile is provided such that, once a template look is created fora DMG, the process of building a DMG file from a set of files can be fullyautomated.
The easiest (but least efficient) way to create a final DMG is by doing it byhand. If you want to do this manually, I assume that you dragged the exactfiles you want the image to contain in the previous section. All you have to dothen is:
Using the template we just created, we can now automatically build a DMG withthe actual files. All you need to do is download this Makefile,modify the values onthe top of the file, and run make. Alternatively, you can includethe Makefile from within another Makefile after setting the proper values, asis illustrated in the example of the fancy-dmg package(also available from the Git repository)
Advanced Mac users may wish to convert a MacOS Installer application into an ISO file. Typically the resulting installer ISO files are used for installing macOS into virtual machines like VMWare or VirtualBox, but they can also be used to burn the ISO to media to create a boot disk. This offers an alternative to creating a bootable USB flash drive for MacOS installers as well.
ISO files are flexible and widely used, they can also be burned to create boot disks and to other media, and you can also copy the ISO to a USB drive with dd or perform any other multitude of actions.
hdiutil attach /Applications/Install\ macOS\ Catalina.app/Contents/SharedSupport/InstallESD.dmg -noverify -mountpoint /Volumes/Catalinahdiutil create -o /tmp/CatalinaBase.cdr -size 9000m -layout SPUD -fs HFS+Jhdiutil attach /tmp/CatalinaBase.cdr.dmg -noverify -mountpoint /Volumes/install_buildasr restore -source /Applications/Install\ macOS\ Catalina.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -eraserm /Volumes/macOS\ Base\ System/System/Installation/Packagescp -R /Volumes/Catalina/Packages /Volumes/macOS\ Base\ System/System/Installationhdiutil detach /Volumes/macOS\ Base\ Systemhdiutil detach /Volumes/Catalinamv /tmp/CatalinaBase.cdr.dmg /tmp/BaseSystem.dmg
hdiutil create -o /tmp/Catalina.cdr -size 10800m -layout SPUD -fs HFS+Jhdiutil attach /tmp/Catalina.cdr.dmg -noverify -mountpoint /Volumes/install_buildasr restore -source /Applications/Install\ macOS\ Catalina.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erasecp /tmp/BaseSystem.dmg /Volumes/macOS\ Base\ Systemhdiutil detach /Volumes/macOS\ Base\ Systemrm /tmp/BaseSystem.dmghdiutil convert /tmp/Catalina.cdr.dmg -format UDTO -o /tmp/Catalina.isomv /tmp/Catalina.iso.cdr /Desktop/Catalina.isorm /tmp/Catalina.cdr.dmg
Too much work, I fancy. You can create an image, partition it and put a filesystem in it, in the right image format, all in one step:hdiutil create -size 10g -type UDTO -layout SPUD -fs JHFS+ /Desktop/something.cdr && open /Desktop/something.cdr
Creating a GPT partition to build a Mac OS X bootable drive on Windows 10After you complete the steps, the USB flash drive from MBR to GPT format, you can use the steps below to create a bootable USB installation media to install Mac OS X.
Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system.
Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, hold down the Option key, and select the USB you just created to reinstall Mac OS X.
As far as I know, the only way to properly create a bootable Lion disc/disk is to use Disk Utility on a working Mac. However, the other option is to use a Virtualbox VM to run OS X temporarily (scroll down for that info).
I'm trying to create a bootable drive from the El Capitan disk image I was able to download, I've found many articles on how to do so but the instructions are not compatible with what I have on my computer. Many sites say I have to go into Applications and find the installer, which is not there. How do I get the installer into Applications? Opening the dmg places what looks like an installer on my desktop which I cannot move into Applications and upon clicking it opens a finder window with a .pkg
If you choose to not create the .ISO file, this should produce a .dmg file inside the specified output directory that is named something similar to macOS_InstallESD_10.12.4_16E195_20170329111134.dmg. This DMG will install a stock factory install of macOS 10.12.4.
If you choose to create the .ISO, you should have two files inside the specified output directory, named something similar to macOS_InstallESD_10.12.4_16E195_20170329111134.dmg and macOS_InstallESD_10.12.4_16E195_20170329111134.dmg.iso
Simply drag and drop files onto the window view, give your disk image a background image, and click Build. What you see in DMG Canvas is exactly how it will look in Finder. You can create great backgrounds for your disk images right inside DMG Canvas itself by dropping in images and adding stylized text, and you're done in a snap.
DMG Canvas goes the extra mile and carefully creates disk images with compatibility so they look and work great all the way back to OS X 10.4 if you choose, regardless of which version of macOS you're using. Or, choose the newest compression and file format options like LZMA and APFS, and have lightning fast disk image mounting times.
Not only can you integrate DMG Canvas into your own build scripts and workflows, but DMG Canvas itself can generate a script that will integrate it into your Xcode project! Drop in your Xcode project and DMG Canvas document, pick a few settings, and the script is there in a flash. Drop the script into your Archive scheme's "Post-action" script and then every time you Archive your application in Xcode, it'll automatically create a disk image ready for you to ship to your users. 2ff7e9595c
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