My USB drive won't mount! When I try to mount it using this command:

sudo mount -t vfat /dev/sda /media/BackupUSB -o rw,umask=0000

it would just say that it is already mounted or in use, but it doesn't appear in the eject menu. I restarted my Pi and now it says "wrong fs type, bad option, bad superblock on /dev/sda, missing codepage or helper program, or other error."

I am running Raspbian Stretch, latest version. I am on a Pi B rev. 2.

Edit: I reformatted it and it still says it is busy.


Ok, I fixed it.

I just had to add a 1 in /dev/sda to make it read /dev/sda1.

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