Regensburg, Germany - 2022-06-25
macOS
restore
macOS 13 Ventura
disk utility

Disclaimer

Make sure to locate your target volume beforehand. If you overwrite the wrong volume, its data will be most likely lost forever.

Foreword

Have you ever tried to restore an bootable disk image on a modern macOS System? If so, you most likely stumbled across the following error(s):
  • Could not validate sizes – Operation not permitted. The operation couldn’t be completed. (OSStatus error 1.)
  • Restore Failure Could not validate source - invalid Argument
I did so, not for the first time. This article serves the purpose to remind myself in the future on how to solve it.

Solution

It's quite simple, but involves using the terminal.
  1. Imagescan the Source Image
sudo /usr/sbin/asr imagescan --source IMAGE.dmg
Copied!
  1. Write the Source Image to the target Disk
Warning, this will erase the target Disk!
sudo /usr/sbin/asr restore --source <<IMAGE.dmg>> --target /Volumes/<<TARGET_NAME>> --erase
Copied!
If promped to erase the disk, you'll need to confirm so by typing "y" followed by pressing enter.
Wait until the process completed.
Your bootable macOS Installer is now finished.

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Dominik Stötter
Developer by day. Photographer at golden hour. Occasional word wrangler after dark.

Wan·der·lust

/ˈwändərˌləst/
Noun, feminine [the]Desire, joy of hikingA small blog from a fulltime developer, photography hobbyist and horrible blog author. Also, this domain wasn't taken...