Mac Mini M1 does not boot after installing mac os sequoia

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Level 1

8 points

Mac Mini M1 does not boot after installing mac os sequoia

Mac Mini does boot after disconnecting external ssd. When done, I reconnect the drive and everything works normally. Issue shows up every time I switch off my mac.

Mac mini, macOS 15.1

Posted on Nov 7, 2024 12:38 AM

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Answer 1

PRP_53

Level 10

91,321 points

Nov 7, 2024 1:30 AM in response to Isolde12

Has macOS Sequoia 15.1 been installed onto the External SSD Drive ?

Have you checked Start Up Disk in System Setting ?

What Disk has been set as the Startup Disk ?

Internal Drive or External Drive ?

It would seem from your description - the External Drive has been chosen as Startup Disk

If that is what you Do Not Want, change it back to Internal Drive

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Answer 2

Isolde12 Author

Level 1

8 points

Nov 7, 2024 6:44 AM in response to PRP_53

I suppose You will agree that dis-attaching and reconnecting an external drive every single time I switch my Mac on can be rather disappointing, if You consider that all of my files are stored in my super fast SanDisk external drive. Moreover, by doing so the Mac's port will be quickly worn. I do not think the SanDisk being totally faultless, because a WD 4 Tb backup drive is also attached from the start without causing any trouble.

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Answer 3

Isolde12 Author

Level 1

8 points

Nov 7, 2024 4:26 AM in response to PRP_53

Thank You for your kind answer. MacOs Sequoia has been installed onto internal Macintosh HD. I push the button, desktop background appears, pw in requested, I digit it, progress bar appears but progression does not begin.

As I disconnect the external 2 Tb drive, everything runs smoothly, so I can reconnect my 2 Tb drive and my machine works normally. MacOs Monterey never gave problem with this very SSD.

Thanks for your patience.

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Answer 4

PRP_53

Level 10

91,321 points

Nov 7, 2024 7:04 AM in response to Isolde12

Do I understand correctly ?

Please do correct me I am wrong !

OP wrote " You consider that all of my files are stored in my super fast SanDisk "

You have moved your Home Folder ( User Account Folder/ from the Internal Drive and move it to the External Drive ?

Why ?

Is that because the Internal Drive is Too Small for your Needs ?

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Answer 5

PRP_53

Level 10

91,321 points

Nov 7, 2024 7:14 AM in response to Isolde12

Follow on

OP wrote " I suppose You will agree that dis-attaching and reconnecting an external drive every single time I switch my Mac on can be rather disappointing "

I agree that having a Large Enough Internal Drive to meet my present needs.

Planning far enough in advance to future proof my expected needs is far more preferred than having to run the the Home Folder from an External Drive be is fast SSD or not

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Answer 6

Isolde12 Author

Level 1

8 points

Nov 8, 2024 5:57 AM in response to PRP_53

I guess my replies are not in sync with yours. Anyway, not too bad. In few word: I installed macOs Sequoia in the 1 Tb internal drive as well as every user folder and every application. All my video and photo files are stored onto my external drive. Onto the same drive are stored Motion and FCP Libraries and Projects as also Adobe Pr, Ae projects and so on. I do this because this way I can easily use my files on different machines in different locations. This workflow has suited my needs for over 20 years with every macOS, except for Sequoia with the SanDisk 2 Tb drive. With external WD drives connected, my Mac Mini boots normally.

Sorry for bothering you.

Thanks

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Answer 7

PRP_53

Level 10

91,321 points

Nov 7, 2024 4:49 AM in response to Isolde12

Then I guess, you found the solution ?

Keep the External Drive dis-attached

Still suggest giving us a Screen Shot of the Startup Disk settings

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