- #Mac os disk utility create cue file how to#
- #Mac os disk utility create cue file password#
- #Mac os disk utility create cue file free#
The size of the image file is predefined, and can’t be expanded or reduced once created. Read/Write disk image: This image format allows you to add files to the image after it is created. Sparse bundle image files have the file extension. The sparse bundle disk image is used extensively with Time Machine. Just like the sparse image format, a sparse bundle disk image has a flexible size that grows or shrinks to accommodate the data within. When data stored on this type of image is changed, only the file(s) that contains the changed data needs to be changed, created, or deleted. Sparse Bundle disk image: This type of disk image is made up of multiple small files, usually 1 MB, 2 MB, 4 MB, or 8 MB in size. Sparse image files have the file extension. The maximum size the image can grow to is set during the image creation process. Sparse image: This type of image format allows the image size to grow and shrink, to accommodate the amount of data stored in the image. The compressed option is only available when creating an image from a folder or drive, or when converting from one image format to another.
#Mac os disk utility create cue file free#
The read only option is only available when creating an image from a folder or drive, or when converting from one image format to another.Ĭompressed: Similar to the read only option, but any free space within the image is first removed to reduce the size of the image file. Additions to the image or changes to any of the files are not allowed. Read only: Allows the content of the mounted image to be viewed, and any files it contains to be opened and read.
The formats that are available can change with the version of the OS, and the method used to create a disk image.) (Disk Utility supports a number of image formats. Not all of the following formats are available in every version of Disk Utility, or with every method of creating a disk image. You can unmount the image by dragging the mounted image (not the image file) to the trash, or right-clicking on the mounted image and selecting Eject from the popup menu.ĭisk Utility supports creating a number of disk image formats that can be used for various projects. Unmounting an encrypted disk image returns the image file to an encrypted state, preventing access to the data stored within.
#Mac os disk utility create cue file password#
You can also automate the task of providing the password by selecting the option to “Remember password in my keychain.” When this option is selected, either during the encrypted image file creation (OS X Yosemite and earlier), or when you’re asked for the password when mounting the image (all versions of the Mac OS), the password will be stored within your keychain and used automatically the next time you mount the image file. Enter the password, and click the OK button. Mounting an encrypted disk image isn’t much different than mounting a normal disk image simply double-click the disk image file, or right-click (control-click) the disk image file, and select Open from the popup menu.īefore the image is mounted, your Mac will display a window that asks you to provide the password to grant access to the information stored within.
The 128-bit encryption will likely meet the needs of most people, while the 256-bit encryption is a better choice for data that needs a higher level of protection.īefore you can make use of a disk image, it needs to be mounted, so your Mac can work with the data within it. The 256-bit encryption is considered more secure than the 128-bit encryption, but the 256-bit encryption also takes longer to encrypt and decrypt. The two levels of encryption refer to the size of the keys used in the encryption/decryption process.
#Mac os disk utility create cue file how to#
We’ll start with an overview of the basics of disk images and encryption, and then show you how to actually create various types of disk images.ĭisk images support two types of encryption: 128-bit AES (Advanced Encryption Standard) and 256-bit AES. In this Rocket Yard Guide, we’re going to look at how to create encrypted disk images.
Encrypted disk images can’t be mounted, viewed, or accessed unless you know the password associated with the image file. But one set of features seems to get overlooked a bit: the creation and management of encrypted disk images.ĭisk images have many benefits they can be used to distribute apps and data to users, for creating master image files for various media types, such as CDs and DVDs, and for creating archives and backups, as well as quite a few additional creative uses.Įncrypted disk images allow you to protect the content of the images from prying eyes. The Mac’s Disk Utility app supports a number of capabilities that make managing the Mac’s storage system easier.
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