Downloading and installing software from a USB flash drive

Downloading and installing software from a USB flash drive

To download software from a USB flash drive:


Before you download and install software from a USB flash drive, insure that:

  • The software version is stored on the USB flash drive and you know the file name (such as K_15_10_0001.swi).

  • The USB flash drive is properly installed in the USB port on the switch.

  • The USB flash drive is supported. Some USB flash drives may not be supported on your switch. For information on USB device compatibility, see the networking support (

  1. Use the following CLI command, specifying the filename and the primary or secondary flash destination:
    copy usb flash <filename> [ primary | secondary ]
    For example, to download a software file named K_15_10_0001.swi from a USB flash drive to the secondary flash destination, execute the command as shown below:
    switch# copy usb flash K_15_10_0001.swi secondary
    The secondary OS image will be deleted. continue
    [y/n]? Y
  2. When the switch finishes downloading the software file from the server, it displays the progress message:
    Validating and Writing System Software to FLASH...
  3. When the CLI prompt reappears, the switch is ready to reboot to activate the downloaded software:
    1. Use the show flash command to verify that the new software version is in the expected flash area (primary or secondary).
    2. Reboot the switch from the flash area (primary or secondary) that holds the new software, using the following command:
      boot system flash [ primary | secondary ]

      After the switch reboots, it displays the CLI or Main Menu, depending on the Logon Default setting last configured in the menu’s Switch Setup screen.

  4. Verify the software version by displaying the system information for the switch (for example, through the show system-information command), and viewing the Software revision field.