create a MBR manually using GPT FDisk

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Level 1

13 points

create a MBR manually using GPT FDisk

Hi there,

I just found this Googling around for the same issue the OP had. I see he went with the downgrade from High Sierra; I, on the other hand, would like to try your alternative...

Now, I know how to do most things you mention, but this part I have no clue how to do:

"create a MBR manually using GPT FDisk"

Could you help me a bit there? Please!

Should I create a new thread? (Seeing as I have the EXACT same issue, I would advice against it; I too cannot chose an option that is not either 40 GB... or -8 GB [Yikes Apple! You messed up there didn't you?])

Posted on Apr 19, 2018 3:49 PM

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Answer 1

Loner T

Level 9

59,536 points

Apr 19, 2018 8:12 PM in response to diegomairena

Please disable SIP - SIP - Enable and Disable steps - and then you can create a MBR using the Rebuild MBR section of Re: El Capitan has deleted my bootcamp windows partition . You do not need to touch the existing GPT.

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Answer 2

Loner T

Level 9

59,536 points

Apr 19, 2018 6:19 PM in response to diegomairena

Please install GPT FDisk (https://sourceforge.net/projects/gptfdisk/). It allows a MBR equivalent of the existing GPT to be created easily.

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Answer 3

diegomairena Author

Level 1

13 points

Apr 19, 2018 6:42 PM in response to Loner T

Well, pardon the abuse, but seeing as you reply promptly, I will take the liberty of asking: Where is GPT FDisk installed to? It is also called GDisk, right? I mean, I did the setup, but after that it kind of vanishes... I am in no way able to find it... Excuse me for my ignorance...

Actually, I don't know if you meant to guide me through the process... Could you please do that?

I just installed it with the included set-up...

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Answer 4

diegomairena Author

Level 1

13 points

Apr 19, 2018 7:20 PM in response to diegomairena

Sorry for the double-post... I went ahead and typed:

gdisk

GPT fdisk (gdisk) version 1.0.3

Type device filename, or press <Enter> to exit: /dev/disk0

Problem opening /dev/disk0 for reading! Error is 1.

So... Error 1... What now? I don't know what to do. 😟

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Answer 5

Loner T

Level 9

59,536 points

Apr 19, 2018 6:09 PM in response to diegomairena

Please start a new discussion. If you run into problems posing a new discussion in Bootcamp, I can ask the hosts to split your post as a separate discussion.

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