There are three methods that are described: Carbon Copy Cloner, Disk Utility, and CommandLine.Use Disk Utility to erase your Mac Start up from macOS Recovery: turn on your Mac, then press and hold Command () and R immediately until you see an Apple logo or other image. Set the Format type to Mac OS Extended (Journaled.)This gist details how to create or restore a disk image in Mac OSX. Set the partition scheme to GUID. Click on the Erase tab in Disk Utility's main window. When Disk Utility loads select the drive (usually, the out-dented entry) from the side list. Select Disk Utility and click on the Continue button.Select the files you want to remove: Cookies, site data, Cached images and. Method 2: Erase Everything on MacBook Pro with Data Wiper (Recommend)Check out how to clean up Macs hard drive and free up available disk space. If you need to remove the hard drive with OS files, you can use Method 2. This method uses the utilities which can be run only on the Mac OS.Method 2: Use Disk Utility Creating a Disk ImageThis method is fairly straightforward, and Apple has a surprisingly helpful knowledgebase article that provides information as well.The steps assume you are using Mac OSX High Sierra or later. If you want to create a cloned copy of the source volume, then select a destination disk, but be advised that existing files may be overwritten.If you want to create a disk image on an existing disk, then select a folder instead.To restore a disk image, follow the above steps in reverse. CCC has been around awhile, and has a simple yet powerful interface that can serve multiple functions, including creating a bootable backup from a disk (like your internal hard disk).To create a disk image, select the source volume and the destination volume. If there is a chance of imminent data loss, contact a professional for assistance, and do not rely on a random person from the Internet for help.This is by far the recommended method. The following steps have been tested and are a summary of my personal recommendations, but should be used at your own risk. Always make a backup of your data, and make 2 separate backups before trying something new.
Wipe Hard Drive For Disk Image How To Create Orread-only: this image will not be modifiable Note: If you do not see your disk listed, that means you did not click on it beforehand. Then select select File -> New Image -> Image from "ExternalHD" Open Disk Utility, then click on the external hard disk that you wish to clone (for example, "ExternalHD") Unless you have a compelling reason otherwise, select the option 'read/write' DVD/CD Master: this image is compatible with 3rd party apps, and will have the extension '.cdr' read/write: this image will be modifiable, and will have the extension '.dmg' Change to dark theme in visual studio for macSelect the empty drive from Step 1 that will be deleted, then click the restore button. Connect the external drive that will be erased. You can also create a checksum of the image by clicking on the image, then selecting Images -> Add ChecksumApple has another surprisingly helpful knowledgebase article that provides information as well on these steps. ![]()
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