I mounted without any problem an external USB drive and I can see on my Mac. I wonder if there is a way to let system identify it as "internal" drive and not as USB plugged device.

It's a low profile pen drive 256 GB and I need it because I ran out of space. I will never remove it from the USB port.

I have no intention to install any app into that, I use it just for storing documents, eclipse workspace and git repositories.

Hardware Overview:

  Model Name:   MacBook Pro
  Model Identifier: MacBookPro11,1
  Processor Name:   Intel Core i5
  Processor Speed:  2.6 GHz
  Number of Processors: 1
  Total Number of Cores:    2
  L2 Cache (per Core):  256 KB
  L3 Cache: 3 MB
  Memory:   8 GB
  Boot ROM Version:
  SMC Version (system): 2.16f68

Here the info of this drive:

Volume name : SSD2
Volume type : APFS Volume
BSD device node : disk3s1
Mount point : /Volumes/SSD2
File system : APFS
Connection : USB
Device tree path : IODeviceTree:/PCI0@0/XHC1@14
Writable : Yes
Is case-sensitive : No
File system UUID : 94FC2548-1000-30EC-93F7-46589632CB3D
Volume capacity : 250,106,306,560
Available space (Purgeable + Free) : 182,470,184,960
Purgeable space : 0
Free space : 182,470,184,960
Used space : 67,497,811,968
File count : 62,156
Owners enabled : No
Is encrypted : No
System Integrity Protection supported : No
Can be verified : Yes
Can be repaired : Yes
Bootable : No
Journaled : No
Disk number : 3
Partition number : 1
Media name : 
Media type : Generic
Ejectable : Yes
Solid state : No
SMART status : Not Supported
Parent disks : disk3
  • Internal drives can be unmounted too, just the same as external; all except for the current boot drive. What do you hope to gain by 'locking' it? – Tetsujin Jan 14 at 8:15
  • @Tetsujin i hope to gain that i don't click umount button by mistake... – fromthestone Jan 14 at 12:14
  • It won't hurt anything. It's just the same as if you did it with an internal volume. It will put it away if it can; if it's busy it won't let you. – Tetsujin Jan 14 at 12:39
  • @Tetsujin yeah, I have tried, if there is a process using some files don't let me plug the drive out. Thanks for pointing out this detail :-) – fromthestone Jan 15 at 1:26

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