Formatting a Drive of any sort with the /s will make that drive a boot
drive/disk(depending on circumstance). Usually, you want the primary
partition to be the boot drive. You can, however, use it to make one of the
other partitions a 'back up" boot disk. may save some trouble down the road.

What kind of problem do you have that you need to format it?

Matthew A. Stoddard

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