This is my diskutil list.
I wish to merge Misc (disk0s4) with Macintosh HD (disk0s2) leaving only Macintosh HD (disk0s2). Normally I would use this command to merge the two disks:
diskutil mergePartitions HFS+ Macintosh HD disk0s2 disk0s4
But, I am not sure whether this command will format my Macintosh HD which I do not want. Misc (disk0s4) is already formatted and thus empty. But Macintosh HD (disk0s2) can not get erased.
Can I securely use the command to merge the two disks?
System information: OS X El Capitan, version 10.11.3