A technician is installing an operating system on a server using source files on a USB storage device. The technician is unable to boot to the USB device using different USB ports on the server…

Copying files to a CD changes the media type but does not address the root cause, which is that removable media is not set as a priority boot device in the firmware.

USB device drivers operate at the OS level and are not required for BIOS/UEFI to recognize and boot from a USB storage device during pre-boot.

The BIOS/UEFI firmware controls the sequence in which devices are attempted for booting, and by default USB storage devices may have lower priority than the internal hard drive or network boot. Reconfiguring the boot order to place the USB device first ensures the system attempts to load the OS installer from it before other devices. This is a required step whenever installing an OS from removable media on a server.

Updating BIOS firmware is not necessary to enable USB booting, as the existing firmware already supports USB boot and only needs the boot order setting adjusted.