New Image Disk impossible to create on Mac mini

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Level 1

20 points

New Image Disk impossible to create on Mac mini

Trying to create a New Image (by Disk Utility), in Macintosh HD (of my Mac-Mini # Sonoma 14.4.1) with the follow parameters:

Name: Name.sparsebundle
Dimension: 7 GB
Format: APFS
Encryption: 128-bit AES
Partition: Single-Map GUID
Image Format: Disk Imagine Sparse Bundle

it replies: "Impossible to create because the File System is read-only" ... What have I to do? Where's my mistake ? --- Thank you for replying and sorry for my English.

[Re-Titled by Moderator]

Mac mini, macOS 14.4

Posted on Mar 25, 2024 7:07 PM

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Answer 1

Top-ranking reply

David Talaga

Level 1

46 points

Jun 22, 2024 8:52 AM in response to ikol_22

I solved this problem by manually adding "Disk Utility" to the list of applications that have Full Disk Access.

Open Settings>Privacy & Security>Full Disk Access

Click on the ➕ icon at the bottom of the list to add an application to the list.

Navigate in the dialog box to /System/Applications/Utilities/Disk Utility.app

It will ask if you want to close and reopen Disk Utility. Approve and you should be good to go. (Assuming that you had the same problem as I did.

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Answer 2

Mar 26, 2024 1:54 PM in response to ikol_22

The root of the drive is now only for macOS system use which is now on a read-only signed & sealed volume to help increase security and also to minimize the chance of macOS becoming damaged or corrupted. Here are two Apple articles regarding the new drive layout changes which started in macOS 10.15 and expanded in macOS 11.x:

About the read-only system volume in macOS Catalina or later - Apple Support

Signed system volume security in iOS, iPadOS, and macOS - Apple Support

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Answer 3

Mar 26, 2024 12:37 AM in response to ikol_22

Where are you trying to save it? Your home folder ~/ is the safest bet and maybe also the Desktop folder (unless it is used for iCloud).

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Answer 4

ikol_22 Author

Level 1

20 points

Mar 26, 2024 5:24 AM in response to Matti Haveri

Thank you for your reply -- I'm trying to save it in the same position I have it on my old iMac (I didn't want to resume the old one from a backup and I preferred to start the new, as a new one):