Can't delete partitions on Disk Utility. No CoreStorage logical volume groups found.

Question

Level 1

8 points

Can't delete partitions on Disk Utility. No CoreStorage logical volume groups found.

When I ran the command "diskutil cs list", it said No CoreStorage logical volume groups found. I am trying to delete two partitions from disk utility but the - symbol is greyed out. My goal is to have one journaled partition so I can use boot camp assistant to instal windows 7. I have a 2008 macbook. I attached a screenshot.

Boot Camp assistant tells me "The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows."

Please advise.

MacBook

Posted on Jan 11, 2021 11:14 PM

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Answer 1

Loner T

Level 9

59,471 points

Jan 12, 2021 11:41 AM in response to wjennn

If you have files already saved, and you are willing to re-install macOS, boot into Internet Recovery, erase your whole internal disk, re-install macOS and then restore your files. Once you have verified macOS, you can then retry BC Assistant.

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Answer 2

wjennn Author

Level 1

8 points

Jan 12, 2021 12:10 PM in response to Loner T

Internet recovery doesn’t work for me, it went to regular recovery mode. I googled to see what the issue is. It mentioned a few reasons, my Mac may be old, it’s 2008. Or running macOS older then Sierra. I am running El Capitan. Another thing, in the past I used a bootable installer, this also could be causing no internet recovery mode. I will see if I can find out and keep trying. Please let me know if you have any ideas what is causing this?

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Answer 3

Loner T

Level 9

59,471 points

Jan 12, 2021 12:36 PM in response to wjennn

Your model does not support Internet Recovery. You can create an external disk installation of macOS and boot from it and erase your internal disk.

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Answer 4

wjennn Author

Level 1

8 points

Jan 12, 2021 10:20 AM in response to Loner T

Hello LT. I have rebooted and posted the output.

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Answer 5

Loner T

Level 9

59,471 points

Jan 12, 2021 6:41 AM in response to wjennn

Please reboot and post the output of

diskutil list

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Answer 6

Loner T

Level 9

59,471 points

Jan 12, 2021 10:42 AM in response to wjennn

There is diskutil command that can address your issue. Do you have a Time Machine backup of macOS? If not, can you create one now?

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Answer 7

wjennn Author

Level 1

8 points

Jan 12, 2021 11:09 AM in response to Loner T

I do not have a time machine backup. Should I create one even if I don't need to save anything? I am okay with a clean wipe. I have my documents saved on an external drive.

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