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macrumors newbie
Original poster
Aug 31, 2016
hey all, when I was trying to write to an sd card, I accidentally cleared the partition map on the wrong disk, I executed
`sudo dd if=/dev/zero of=/dev/rdisk1 bs=1024 count=1`

Now I can’t boot into macos anymore, first aid also shows some problems

here is an album containing some screenshots:

what can i do in order to make the partition function again?
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