New mac. old SSD. cant connect?

I recently purchased a new MacBook Air and when trying to connect my Samsung portable SSD I get a pop-up notification. Its basically saying that it can’t be read. why is this? Also I want to keep all my data on the drive.

MacBook Air

Posted on Sep 19, 2024 03:33 PM

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7 replies

Sep 26, 2024 07:13 AM in response to Andrew Estrem

Drives formatted in the old HFS (not HFS+ journaled) format are no longer readable by macOS Sonoma or later. You will need a Mac with an older operating system on it and a new drive formatted with HFS+, FAT32, exFAT, or APFS (macOS Mojave or later) so that you can mount the HFS drive and transfer its contents to a format still readable by Sonoma or later.

Sep 26, 2024 08:46 AM in response to Andrew Estrem

Was this external drive used on an older Mac? Or a PC?


Was the external drive encrypted? Is so by what app?


Were you using the Samsung proprietary software to manage that drive?


Disconnect all other external devices (especially drives), but connect the external Samsung SSD. Then run the following command from the Terminal app so we can the drive layout of that external drive (if other drives are attached, it just confuses things):

diskutil  list  external


Edit: If this was used on an older Mac, what was the OS used on that older Mac which could access that drive?

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New mac. old SSD. cant connect?

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