My mac is kind of a mess right now so I wanted to fresh install MacOS Sierra.
I bought myself a brand new 8gb pendrive since is pre req. But I cant seem to get it properly erased, I always get this message:
If I try by terminal following this tutorial I also get this error:
The operation couldn’t be completed. (com.apple.DiskManagement error -69874.)
I also tried Using Install Disk Creator but I think the same thing happens because he probably use Diskutil commands:
So I am kinda lost here and don't know what else to do.
P.S. I went to the store and changed my pendrive for another one and the same things happen
PPS In every retry I had to go on a windows laptop to format again. And it works just fine copying files and it show on my mac until the unmounting processes begin
PPPS I noticed that the pendrive does not have a GUID_partition_scheme as the others
Is there any other way I fix this?