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How can I create a user account in Sonoma on my HDD?

Sonoma is loaded on the SSD on my new imac2019 as it should be. The machine also has a HDD. I would like to find out how to create a user account in Sonoma on the HDD (and not on the SSD as seems to happen automatically. Has anyone run into the same problem? How can it be solved?



[Re-Titled by Moderator]

iMac, OS X 10.11

Posted on Nov 15, 2024 8:50 PM

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7 replies

Nov 15, 2024 11:55 PM in response to bardot666

It is possible to move the user account to an external disk ... but it is messy and risky so do it only if you have the knowledge to troubleshoot it.


A better practice is to keep data files and large data libraries (Photos, Music, Final Cut Pro etc) on APFS (SSD) or MacOS Extended (HDD) external disks (those apps do not support non-Mac formats like exFAT etc).


Another option is the install macOS on an external large SSD (not HDD because they are slow with APFS) and use it as boot drive.

Nov 16, 2024 3:06 AM in response to bardot666

An iMac from 2019 can come configured with an Single SSD Drive


It can also come configured with a Fusion Drive


A Fusion configuration can have a 128 GB SSD Drive combined with a Traditional Rotational Drive which usually has a Larger Drive Capacity.


By the magic of Apple, the Fusion Drive is Fused together and presented to the Operating System ( and the user - you ) as a Single Drive


Usually, the Applications are located on the SSD portion of the Fusion Drive as the SSD Drive is much faster


Files like Music, Video, Photos, etc and application files created by the user are normally stored on the Rotational Drive


Which, normal has a much Greater Storage Capacity


Now, Managing Applications that get installed on this computer and occupies space on the SSD Drive.


That falls completely on the User ( you )


Managing a 128 GB SSD Drive will be a challenging at best


Nov 16, 2024 4:33 AM in response to bardot666

The only way to successfully accomplish what you want is to rebuild the Fusion Drive on that Mac. However, I don't think macOS Sonoma handles a Fusion Drive well.


Without the Fusion Drive magic, you could move user account home folders to the HDD as already noted, but that comes with lots of baggage. There have also been reports here of Sonoma not playing well with moved home folders. Restoring from a backup is also problematic.


Many of the large-data libraries can be set to exist on another drive, Photos, Music, TV.

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How can I create a user account in Sonoma on my HDD?

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