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Saturday, October 19, 2024

Unusual Disk Picture File (.dmg) downside – deleted information in xyz.dmg don’t relinquish file area


{Hardware} & OS used:

  • Mac Studio M1 Max 32GB mem 1TB SSD Mac OS Ventura 13.2
  • Mac Mini M1 16GB mem, 1TB SSD Mac OS Ventura 13.2
  • Mac Mini Intel i7 32GB mem, 1TB SSD, Mac OS Ventura 13.2

Background:
At the moment utilizing Veracrypt software program container to retailer delicate information. Replace information inside this secured container (after mounting) with Free File Sync works completely.

Goal:
Wish to change this fashion of working to Apple’s personal software program ecosystem by utilizing an encrypted .DMG, created with disk utility.

Adopted process:
In Disk Utility, choose File > New Picture > Clean Picture, then save with identify File.dmg and choose location.
Choose identify, choose Dimension: 1GB, Format: APFS, choose Encryption (enter password), Partitions: GUID Partition map, Picture Format: learn/write disk picture, then click on Save

File.dmg was created with a password. Works completely, mount and dismount.

The issue/challenge on all three Macs:

If I now manually add information to this mounted disk picture, all works nice. Nonetheless, after I need to delete some information, the out of date information disappear within the Finder view (additionally when displaying hidden information) however they preserve occupying area in file.dmg.
You may completely see this with the “Get Information” tab in Finder.

So my allotted 1GB will get very quickly full as deleted information don’t hand again obtainable file area to the system. I’ve tried all kinds of combos (parameters) whereas making a .dmg in Disk Utility, however the issue stays.

The one means by which I’m able to reclaim the “misplaced” file area is to manually empty the Trash. I feel this isn’t proper as deleting information on an HDD or SSD ought to relinquish the area the second the information are deleted and are being positioned within the Trash, this pending closing deletion.

Is anybody else experiencing this downside or am I doing one thing incorrect?

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