mount usb disk terminal

Actually it would be better to change ownership of the newly created "USB" folder at "/Volumes/USB" to the macOS user or the OP may not be able to save files there, but this could be problematic if the OP wishes multiple users to access that mount point. Should be able to be done from the Finder with "Get Info", but can be achieved with the command line (using the info in the OP's post):

sudo  chown  $USER  /Volumes/USB

Better yet would not to create any folder in "/Volumes" since you will encounter permissions issues and will need to manually delete that "USB" folder since it will still around since it was manually created. Just let Disk Utility automatically mount the external volumes using the given name of the volume "TOSHIBA EXT" instead, or by using the following command which does not even require "sudo" (given the information in the OP's post):

diskutil  mount  disk2s1

If a custom name is desired, then just rename the "TOSHIBA EXT" volume instead.

As indicated in your mkdir command, sudo is required to touch the /Volumes directory.

Please try sudo on mount:

$ sudo diskutil mount -mountPoint /Volumes/USB /dev/disk2s1

fa61an wrote:

I have macOS ventura

I need USB external disk at command line "terminal".

Like this

➜ $ sudo mkdir -p /Volumes/USB

Password:

➜ $ diskutil mount -mountPoint /Volumes/USB /dev/disk2s1

Volume TOSHIBA EXT on /dev/disk2s1 mounted

➜  $ diskutil info /dev/disk2s1 | grep Mounted       

  Mounted:          No

But even though the command is correct, and its output is that if you mount it you don't mount it, I don't know if it's an additional restriction

Thanks

Is that an intended blank space in the path?

diskutil mount -mountPoint /Volumes/USB /dev/disk2s1

compare

diskutil mount -mountPoint /Volumes/USB/dev/disk2s1

Is Terminal included in the Full Disk Access folder?

>System Setting>Privacy & Security>Full Disk Access