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Find Disk ID & Device Node Identifier on Mac OS Command Line

Find Disk ID & Device Node Identifier on Mac OS Command Line

Check tutorial of How to Find a Disk ID & Device Node Identifier in Mac OS X Command Line

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If for some reason you need to find the disk ID or disk node ID (such as / dev / disk0s2) of a volume connected to a Mac, the easiest way to get this information from the command line is to use the diskutil utility .

Finding a disk ID node in Mac OS

Open the Terminal to get started, located in / Applications / Utilities /, then enter the following syntax command string:

diskutil list

This command lists all mounted volumes and their respective partitions, as we discussed earlier, but for this purpose we specifically use it to locate a volume’s disk ID or IDENTIFIER. So look for the name of the disk volume in question and then look under the “IDENTIFIER” section to find the disk ID, it will appear on the right side of the terminal report:

diskutil list and find disk ID identification information on Mac

Since that command will print all volumes and their disk IDs, it can return unnecessary information. If you don’t want to go through the list, or if you know the volume name of the drive for which you want to find the disk ID directly, you can use a variation of the diskutil command to immediately get details like this:

diskutil info “Macintosh HD” | grep Node

This could return something like the following: $ diskutil info “Macintosh HD” | grep NodeDevice Node: / dev / disk1

Where “/ dev / disk1” is the appropriate node ID.

You can also widen it a bit, which can be useful for determining what volume you want:

$ diskutil info “Macintosh HD” | grep DeviceDevice Identifier: disk1Device Node: / dev / disk1 Device / Media Name: Macintosh HDD Device Block Size: 512 Bytes Device Location: Internal

This indicates where the location of the device is, meaning whether it is an internal or external drive, which can help shrink a volume if there are many drives or storage utilities connected to a Mac.

The diskutil command is very powerful and has many uses for the Mac user who does not mind navigating within the command line. Yes, it’s a bit advanced, but given its potential and power, it’s sometimes the only way to quickly get specific types of information in MacOS and Mac OS X.

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The time to complete the How to Find a Disk ID & Device Node Identifier in Mac OS X Command Line tutorial is 10+ minutes.

What are the supported Device?

Apple

What are the supported Operating system?

mac OS


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