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Solving USB Flash Drive Problems
If you encounter USB flash drive problems, common causes and solutions are listed in the following
table.
Table C-14 Solving USB Flash Drive Problems
USB flash drive is not seen as a drive letter in Windows.
Cause Solution
The drive letter after the last physical drive is not available. Change the default drive letter for the flash drive in Windows.
USB flash drive not found (identified).
Cause Solution
The device is attached to a USB port that has been disabled
in Computer Setup.
Run the Computer Setup utility and ensure USB Ports are
Enabled in the Advanced menu.
The device was not properly seated before power-up. Ensure the device is fully inserted into the USB port before
applying power to the system
System will not boot from USB flash drive.
Cause Solution
Boot order is not correct. 1. Run the Computer Setup utility and change the
removable media boot priority in Boot > Boot Device
Priority.
2. Run the Computer Setup utility and change boot group
sequence in Boot > Boot Device Priority.
The image on the device is not bootable. Follow the procedures described in the "Replicating the
Setup" section of the Service Reference Guide.
The computer boots to DOS after making a bootable flash drive.
Cause Solution
Flash drive is bootable. Install the flash drive only after the operating system boots.
168 Appendix C Troubleshooting Without Diagnostics