Secure boot device selection method and system

• US 20030084307A1
• Filed: 10/30/2001
• Published: 05/01/2003
• Est. Priority Date: 10/30/2001
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Schwartz, Jeffrey D.
• Application Number:
  US09/999,123
• Publication Number:
  US 20030084307A1
• Time in Patent Office: Days
• US Class Current: 713/189
• CPC Class Codes: G06F 21/575 Secure boot
• CPC Class Codes: G06F 9/4406 Loading of operating system

Abstract

An embodiment of a secure boot device selection method retrieves a device identifier from an isolated storage medium, selects one of a plurality of devices to boot in response to the device identifier, and boots one of the plurality of devices.

Another embodiment of a secure boot device selection system comprises a memory accessible through execution by a processor of a basic input/output system (BIOS) application and an operating system application, and a plurality of boot devices having an assigned device identifier associated with the boot device and stored in the memory. The BIOS application is executable by the processor and adapted to access the memory, adapted to retrieve the device identifier, select one of the plurality of boot devices to boot in response to the device identifier, and boot one of the plurality of boot devices.

Claims

1. A secure boot device selection method, comprising:

retrieving a device identifier from an isolated storage medium;

selecting one of a plurality of devices to boot in response to the device identifier; and

booting one of the plurality of devices.

2. The method of claim 1, further comprising:

receiving a password if the one of the plurality of devices is not bootable; and

attempting to boot at least another one of the plurality of devices in response to the password.

3. The method of claim 1, wherein the isolated storage medium is accessible through execution of an operating system application and a basic input/output system (BIOS) application operable to boot a motherboard using the one of the plurality of devices.

4. The method of claim 1, wherein the one of the plurality of devices is identified with a list.

5. The method of claim 1, wherein the one of the plurality of devices is a preferred device comprising a hard drive.

6. The method of claim 1, wherein the isolated storage medium comprises a serial flash memory.

7. The method of claim 1, further comprising booting the selected one of the plurality of devices.

8. A secure boot selection system comprising:

a memory accessible through execution by a processor of a basic input/output system (BIOS) application and an operating system application;

a plurality of boot devices having an assigned device identifier associated with the boot device and stored in the memory; and

wherein the BIOS application is executable by the processor and adapted to access the memory, and the BIOS application is adapted to retrieve the device identifier, select one of the plurality of boot devices to boot in response to the device identifier, and boot one of the plurality of devices.

9. The system of claim 8, further comprising:

receiving a password if the one of the plurality of boot devices is not bootable; and

attempting to boot at least another one of the plurality of boot devices in response to the password.

10. The system of claim 8, wherein the memory is accessible solely by an operating system and the BIOS application operable to boot a motherboard using the one of the plurality of devices.

11. The system of claim 8, wherein the one of the plurality of boot devices is identified with a list.

12. The system of claim 8, wherein the one of the plurality of boot devices is a preferred device comprising a hard drive.

13. The system of claim 8, wherein the memory comprises a serial flash memory.

14. The system of claim 8, wherein one of the plurality of boot devices is a preferred device comprising a hard drive.

15. The system of claim 8, wherein the application prompts for a security mechanism if the boot device is not bootable.

16. The system of claim 8, wherein the device identifier is a default value.

17. The system of claim 8, wherein the application is further operable to boot the selected one of the plurality of devices.

18. A secure boot selection application comprising:

a basic input/output system (BIOS) application and further adapted to access a memory accessible through execution of the BIOS application and an operating system application by a processor; and

the application adapted to retrieve a device identifier, select one of the plurality of boot devices to boot in response to the device identifier, and boot one of the plurality of devices.

19. The application of claim 18, wherein the BIOS application is further operable to:

receive a password if the one of the plurality of boot devices is not bootable; and

attempt to boot at least another one of the plurality of boot devices in response to receipt of a password.

20. The application of claim 18, wherein the one of the plurality of boot devices is identified with a list.

21. The application of claim 18, wherein the one of the plurality of boot devices is a preferred device comprising a hard drive.

22. The application of claim 18, wherein the BIOS application is further operable to prompt for a security mechanism if the boot device is not bootable.

23. The application of claim 18, wherein the BIOS application is further operable to boot the selected one of the plurality of devices.