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I use an Apple MacBook Pro 13'' mid-2012 with a 1 TB HDD. FileVault is enabled so the disk is encrypted. I'm using macOS Mojave 10.14.6.

I purchased an 1 TB SSD (Crucial MX 500, CT1000MX500SSD1). I want to clone from the HDD to the SSD, in order to transfer the data and the OS in their current state.

I want to avoid using a third-party software, so I tried to use Disk Utility with the "restore" feature.

How should I proceed? How should I format the SSD before?

I tried formatting the SSD under APFS. Then I launched a restore operation from my HDD (internal) to SSD (external). But it consistently fails with "OSStatus error 28", saying "could not restore - no free space on the device", "the operation could not be completed", "the operation failed", "the destination does not have enough space".

Disk Utility - Could not restore

I don't understand because both disks are supposed to have the same capacity.

Disk Utility - HDD details

Disk Utility - SSD details

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The best Application to clone your HDD to a SSD is Carbon Copy Cloner. This Application is free for one month in test mode and completely operational.

Else the asr command work fine for Big Sur System. I don't know if it's ok for Mojave. In this link you have an exemple : https://discussions.apple.com/thread/251693650?answerId=253255271022#253255271022

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  • Thank you for your answer, it may be a solution to the problem. But for the moment, I would like to avoid third-party software for security and privacy reasons.
    – Croal
    Sep 28 at 22:26
  • Ok. I've add informations to my answer ;-}
    – Jean_JD
    Sep 28 at 22:29
  • Interesting! I'll take a look, try and keep you informed
    – Croal
    Sep 28 at 22:37
  • Carbon Copy Cloner is basically a clever front-end for such as the unix dd command - it just saves the user having to get their hands dirty with complex command line stuff. I've never heard even a whisper of there being any security concerns with it.
    – Tetsujin
    Sep 29 at 8:18

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