![]() ![]() It includes a copy of all sectors of the disk image, whether they’re used or not. Read/write: Allows you to add files to the disk image after it’s created.ĭVD/CD master: Can be used with third-party apps. ![]() Read-only: The disk image can’t be written to, and is quicker to create and open.Ĭompressed: Compresses data, so the disk image is smaller than the original data. ”Ĭlick the Format pop-up menu, then choose an option: In the Disk Utility app on your Mac, select a disk, volume, or connected device in the sidebar.Ĭhoose File > New Image, then choose “Image from. You can’t create images of APFS containers on Mac computers with Apple silicon or an Apple T2 Security Chip. Note: You can’t create images of individual APFS volumes. In the Finder, copy your files to the mounted disk image, then eject it.įor more information about disk image types, see the manual (man) page for hdiutil. cdr file extension.ĭisk Utility creates the disk image file where you saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar. dmg file extension.ĭVD/CD master: Changes the size of the image to 177 MB (CD 8 cm). Read/write disk image: Allows you to add files to the disk image after it’s created. Sparse disk image: Creates an expandable file that shrinks and grows as needed. Sparse bundle disk image: Same as a sparse disk image (below), but the directory data for the image is stored differently. To encrypt the disk image, click the Encryption pop-up menu, then choose an encryption option.Ĭlick the Partitions pop-up menu, then choose a partition layout.Ĭlick the Image Format pop-up menu, then choose an option: If the disk image will be used with a Mac or Windows computer and is 32 GB or less, choose MS-DOS (FAT) if it’s over 32 GB, choose ExFAT. If the disk image will be used with a Mac with macOS 10.12 or earlier, choose Mac OS Extended (Journaled) or Mac OS Extended (Case-sensitive, Journaled). If the disk image will be used with a Mac that has a solid state drive (SSD) and uses macOS 10.13 or later, choose APFS or APFS (Case-sensitive). In the Size field, enter a size for the disk image.Ĭlick the Format pop-up menu, then choose the format for the disk: ![]() This is the name that appears on your desktop and in the Finder sidebar, after you open the disk image. In the Name field, enter the name for the disk image. This is the name that appears in the Finder, where you save the disk image file before opening it. In the Disk Utility app on your Mac, choose File > New Image > Blank Image.Įnter a filename for the disk image, add tags if necessary, then choose where to save it. Update your Mac to the new MacOS now, and enjoy the new usability features and the performance upgrades that it offers.You can create an empty disk image, add data to it, then use it to create disks, CDs, or DVDs. Apple Watch functions for identification purposes, unlocking notes, checking passwords, and approving app installation.Introduction of changes and improvements in applications like Notes, Reminders, and Safari.Unlimited access to Apple Arcade, a platform with more than 100 video games.Find My merges into one the previous Find My Mac and Find My Friends.¡Tunes is redesigned in the same way as in ¡OS and separates content into music, podcast, and TV apps.A new function named Sidecar, which allows the enabling of an ¡Pad with ¡PadOS 13, which functions as an external wireless display.Computer control using voice commands, going beyond the functions found in Siri.The introduction of Catalyst, a new platform which allows the software to be programmed for both macOS and ¡PadOS.These are the principal new features of macOS Catalina: Voice control jumps from Siri to the whole MacĪs well as this change, Apple has incorporated others, such as voice control which allows users to control the computer using spoken commands. The priniciple new feature with respect to Mojave, which was 10.14, is that it exclusively supports 64-bit applications. Version 10.15 of the Apple operating system for Mac PCs has been named after the southern Californian island of Santa Catalina. ![]()
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