Permission denied on data volume when making dd image.

General (Technical, Procedural, Software, Hardware etc.)

Last Post by Lazza 2 years ago

2 Posts

2 Users

0 Reactions

2,680 Views

RSS

Jorben

(@jorben)

New Member

Joined: 3 years ago

Posts: 1

Topic starter 06/03/2023 4:11 pm [#19847]

I recently purchased a Macbook M1 Pro 16 inch. When creating a .dd image of my Macintosh HD, the command copies only 4 of the 6 volumes. When I want to create an image of only my data volume, I get an error message "permission denied" despite SIP (System Integrity Protection) and FileVault being disabled. what could be the problem here?
Command I used: sudo dd if=/dev/diskX of=/destination/path bs=64k

Quote

Lazza

(@lazza)

Active Member

Joined: 6 years ago

Posts: 4

15/07/2024 11:46 am

You cannot perform a dd on that "synthesized" volume, it won't work... and if you get a DD of the whole disk, it's encrypted with hardware-level encryption.

Nowadays the best option is to acquire a logical, Full File System image.

ReplyQuote