How to reformat macbook a1707 ssd
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In my case, I also have folders called Ubuntu and refind, but I’m leaving those alone.ĭelete the Windows EFI Boot entry by typing this into the Terminal: rm -rf Microsoft You will likely see a folder called Microsoft. This will put you in the directory where your Mac stores information about what operating systems you have installed. Again in Terminal, type: cd /Volumes/EFI/EFI See Troubleshooting for more information on which format to select. If your Mac is using APFS, select APFS from the format list.
How to reformat macbook a1707 ssd mac os#
If your Mac uses HFS+, select Mac OS Extended (Journaled) from the format list. Click the Erase button at the top of the Disk Utility window. With the board alone on the bech, connected to an external display, it shows the battery icon and then shuts down. It's usually called Apple HHD or Apple SSD or something similar. Other times it doesn't do anything (but puls 19.5 V from amp metter). Some times it shows the Apple logo, and starts to load the progress bar, and them shuts down or reboots. Once that’s done, you’ll need to navigate to the correct folder. Hi, I have an A1707 820-00281-A that doesn't boot. Replace /dev/disk0s1 with the correct partition you located using diskutil. Once you find it, enter these commands one at a time: sudo mkdir /Volumes/EFI sudo mount -t msdos /dev/disk0s1 /Volumes/EFI As you can see, my EFI Boot partition is located on /dev/disk0s1
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You’re looking for a partition on your main hard drive called EFI. In the Terminal, type this command: diskutil list First, you’ll need to locate the EFI partition, which is where your Mac stores information about what operating systems can be booted from your Mac.