If you use this procedure to set a temporary boot device, this boot device assignment is only in effect for the current server boot. The permanent boot device (specified through the BIOS Setup utility) takes effect after booting from the temporary boot device.
The Please Select Boot Device dialog box appears.
Based on whether the server is configured to use UEFI Boot Mode or Legacy BIOS Mode, the dialog only displays devices that function in that mode. For example, if you select the UEFI Boot Mode, only UEFI boot devices are displayed in the Please Select Boot Device dialog. See BIOS Overview (Administration).
The host boots from the selected device.