Configuration Guide for Cisco NCS 1004, IOS XR Release 25.x.x

Unmount a USB device

Updated: July 31, 2026

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Use this task to safely disconnect a USB device from a sysadmin or XR virtual machine by issuing the appropriate command.

Procedure

	1.	If you are working in sysadmin-vm, enter the command usb device operation unmount to unmount the USB device. Example: `sysadmin-vm:0_RP0#usb device operation unmount Fri Jul 13 09:25:24.531 UTC success usb unmounted`
	2.	If you are working in XR-vm, enter the command unmount disk2: to unmount the USB device. Example: `RP/0/RP0/CPU0:ios#unmount disk2: Fri Jul 13 14:56:46.393 IST disk2: unmounted successfully.`

The USB device is safely disconnected from the selected virtual machine and ready for physical removal.

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Unmount a USB device

Procedure

Example:

Example: