Hello mac users.
Sorry for my bad english.
On my duty I have to work with hard drives / ssd / usb flash.
I'm buying / selling / upgrading drives for my clients.
Sometimes I need to check the disk before sell it (read/write speed).
When I connect a new disk it is unallocated, system says: hey would you like to format it?
As in this picture
After I format the disk, the chosen partition appears on it.
Then I make some tests to know disk is in good condition.
After that I don't need any partition any more.
I need to erase disk, clear all partitions and make it unallocated like it come from factory.
How can I do this?
The disk utility does not allow me to erase the last partition.
I think this can be done through the terminal, but I could not find a suitable instruction on the Internet
The only way to erase all partition I have found is:
Does anybody know other solutions?
Sorry for my bad english.
On my duty I have to work with hard drives / ssd / usb flash.
I'm buying / selling / upgrading drives for my clients.
Sometimes I need to check the disk before sell it (read/write speed).
When I connect a new disk it is unallocated, system says: hey would you like to format it?
As in this picture
After I format the disk, the chosen partition appears on it.
Then I make some tests to know disk is in good condition.
After that I don't need any partition any more.
I need to erase disk, clear all partitions and make it unallocated like it come from factory.
How can I do this?
The disk utility does not allow me to erase the last partition.
I think this can be done through the terminal, but I could not find a suitable instruction on the Internet
The only way to erase all partition I have found is:
But this way is to slow and writing zeros to all of disk space will affect disk life
Does anybody know other solutions?