Cannot boot into macOS no matter what I do. Always shows cancel sign (line in circle)

[VindictiveRabbi]

Hi there,
A few weeks back I dual booted linux and macOS on my macbook (pro mid 2012), and I decided that I did not want linux anymore, then proceeded to uninstall the grub loader and linux. Booted fine the first time back into Sierra, but after another restart a cancel sign started showing up and I wasnt able to get back in the macOS. I tried again and again, and then decided to try and reinstall the OS.

My recovery partition did not work so I used internet recovery. I tried to reinstall, I erased my ssd and tried downloading the OS, but much to my despair, it simply would not download. Eventually I created a bootable usb image of Sierra from a friends Mac. Did a fresh reinstall successfully, but when it rebooted: same thing: cancel sign. Tried it again. This time I got to the desktop, then after a day my mac ran out of battery, charged it, rebooted and BAM cancel sign.

I believe its an issue with the bootloader, no matter how many times I reinstall the same sign comes up. I have tried first aid on disk util, tried resetting PRAM and NVRAM, tried just about everything.

I need a suggestion, getting fed up. Last resort is a firmware reinstallation?

Thanks

 

[ferrarr]

Use your USB to partition and erase the drive, before the installation.

 

[chscag]

The GRUB bootloader overwrites the EFI partition on the hard drive or SSD. The only way to get rid of it is what Bob recommended above and that is to completely erase the drive first. Lesson: Never install Linux in a dual boot scenario, rather install it in a VirtualMachine. VirtualBox from Oracle is free and very easy to remove a VM when you no longer need it.

 

[VindictiveRabbi]

I have completely erased the ssd, numerous times through internet recovery.

 

[chscag]

I have completely erased the ssd, numerous times through internet recovery.

That's not the same as mentioned above. Internet Recovery does not erase the drive as it reinstalls the original OS X. Erase the drive as suggested above and then try again to install OS X.

 

[IWT]

@VindictiveRabbi

Here's a link telling you exactly what you have to to. As you already have a Bootable USB Installer, you can skip the first part and follow the instructions from the paragraph entitled: "Restart and Install".

Link: https://www.macrumors.com/how-to/macos-sierra-clean-install/

Ian

 

[ferrarr]

When you are in Disk Utility, before you erase the drive, Partition the drive and make sure there is only one partition.

 

[harryb2448]

Best resort leave Linux be.

 

[pm-r]

Best resort leave Linux be.

Does this translate that you're not too keen on macOS harry???





- Patrick
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[harryb2448]

Back to front you Cannucks.

Leave it be - don't run it - erase it - can it - kill it - don't use it? Assuming the SSD was erased hopefully it will be gone.

 

[pm-r]

Back to front you Cannucks.

Leave it be - don't run it - erase it - can it - kill it - don't use it? Assuming the SSD was erased hopefully it will be gone.

Huh…????

Sorry, but I guess I lost the thread and seem to be having trouble translating or understanding your Aussie reply.





- Patrick
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