Cisco Nexus 3000 Loader>

Booting Cisco Nexus 3000 from the Loader> Prompt.

Three files required: kickstart, image, and license files.
Example:
n3000-uk9-kickstart.6.0.2.U3.7.bin
n3000-uk9.6.0.2.U3.7.bin
license_FOC2005R1FS_6_1.lic

Booting the Switch from the USB
Starting from Release 7.0(3)I3(1), an option is provided to boot the switch from the USB using a loader prompt.
Example:

loader> boot usb1:n3000-uk9-kickstart.6.0.2.U3.7.bin

Next copy the image from the USB and Load it:
switch(boot)#load bootflash:/[IMAGE_FILE]

Install the license:

switch# install license bootflash:license_FOC2005R1FS_6_1.lic

Next