-bash-3.2# diskutil eraseVolume jhfs+ "Macintosh HD" disk0s2
Started erase on disk0s2 Macintosh HD
Unmounting disk
Erasing
newfs_hfs: WriteBuffer: pwrite(3, 0x10b152000, 1048576, 0): Input/output error
newfs_hfs: write (sector 0): Invalid argument
Mounting disk
Error: -69832: File system...