# US 9,436,828 B2 · Systems and methods for command-based entry into basic input/output system setup from operating system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,436,828 B2 - Document ID: US9436828B2 - Status: Granted - Kind: B2 - Application number: 14/736,967 - Filed: 2015-06-11 - Published: 2015-10-01 - Granted: 2016-09-06 - Earliest claimed: 2013-01-22 - Assignees: Dell Products L.P. - Applicants: Dell Products L.P. - Inventors: Douglas M. Anson; Charles D. Robison; David Konetski; Frank H. Molsberry; Anand Joshi - Web page: https://patentgrep.com/patent/US9436828B2 ## CPC - G06F 21/575: {Secure boot} - G06F 9/4401: Bootstrapping (security arrangements therefor G06F21/57) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract In accordance embodiments of the present disclosure, a method may include, during execution of an operating system on an information handling system and responsive to a user input indicating a desire to invoke a basic input/output system (BIOS) setup program for configuring a BIOS, prompting for and receiving user-provided credentials via a user interface communicatively coupled to the processor. The method may also include, during execution of the operating system, passing BIOS credentials to the BIOS based on the user-provided credentials. The method may additionally include, during execution of the operating system determining, by the BIOS, if the BIOS credentials are valid. The method may further include, responsive to determining that the BIOS credentials are valid, setting a flag to a value indicating that the BIOS setup program is to be invoked on a subsequent boot of the information handling system. ## Claims ### Claim 1 An information handling system comprising: a processor; and an operating system comprising one or more instructions embodied in non-transitory computer-readable media communicatively coupled to the processor, the instructions for causing the processor to, when read and executed by the processor: responsive to a user input indicating a desire to invoke a basic input/output system (BIOS) setup program for configuring a BIOS; prompt for and receive user-provided credentials via a user interface communicatively coupled to the processor; pass BIOS credentials to the BIOS based on the user-provided credentials; and responsive to determining that the BIOS credentials are valid: set a BIOS setup program flag indicating that the BIOS setup program is to be invoked on a subsequent boot; and record a timestamp indicative of when the flag was set; wherein the BIOS is configured to invoke the BIOS setup program prior to loading and executing the operative system responsive to detecting: the BIOS setup flag is set; and a most recent boot of the information handling system occurred within a particular interval relative to the time indicated by the timestamp. ### Claim 2 (depends on 1) The information handling system of claim 1, wherein the BIOS credentials comprise the user-provided credentials. ### Claim 3 (depends on 1) The information handling system of claim 1, wherein the user-provided credentials comprise at least one of a username and a password. ### Claim 4 (depends on 1) The information handling system of claim 1, wherein: the user-provided credentials are in a format which the BIOS cannot process; and passing the BIOS credentials to the BIOS based on the user-provided credentials comprises passing BIOS credentials in a format in which the BIOS can process to the BIOS based on the user-provided credentials. ### Claim 5 (depends on 4) The information handling system of claim 4, wherein the passing the BIOS credentials to the BIOS based on the user-provided credentials comprises: indexing a database entry based on the user-provided credentials; and passing BIOS credentials present in the indexed database entry as the BIOS credentials. ### Claim 6 (depends on 1) The information handling system of claim 1, further comprising: the BIOS is further configured to, when read and executed by the processor, determine if the BIOS credentials are valid. ### Claim 7 (depends on 6) The information handling system of claim 6, wherein: the operating system may further cause the processor to digitally sign or encrypt the BIOS credentials; and the BIOS may further cause the processor to validate a digital signature of the BIOS credentials or decrypt the BIOS credentials. ### Claim 8 (depends on 6) The information handling system of claim 6, wherein: the BIOS may further cause the processor to digitally sign or encrypt the flag; and the BIOS setup program may cause the processor to validate the digital signature of the flag or decrypt the flag. ### Claim 9 (depends on 6) The information handling system of claim 6, further comprising the BIOS further configured to: during a boot of the information handling system and responsive to determining that value of the flag is not set, load and execute the operating system without invoking the BIOS setup program. ### Claim 10 A method comprising: during execution of an operating system on an information handling system and responsive to a user input indicating a desire to invoke a basic input/output system (BIOS) setup program for configuring a BIOS, prompting for and receiving user-provided credentials via a user interface communicatively coupled to the processor; and during execution of the operating system, passing BIOS credentials to the BIOS based on the user-provided credentials; and responsive to determining that the BIOS credentials are valid: set a BIOS setup program flag indicating that the BIOS setup program is to be invoked on a subsequent boot; and record a timestamp indicative of when the flag was set; wherein the BIOS is configured to invoke the BIOS setup program prior to loading and executing the operating system responsive to detecting: the BIOS setup flag is set; and a most recent boot of the information handling system occurred within a particular interval relative to the time indicated by the timestamp. ### Claim 11 (depends on 10) The method of claim 10, further comprising: responsive to determining that the flag is not set, loading and executing the operating system without invoking the BIOS setup program. ### Claim 12 (depends on 10) The method of claim 10, wherein the user-provided credentials comprise at least one of a username and a password. ### Claim 13 (depends on 10) The method of claim 10, wherein: the user-provided credentials are in a format which the BIOS cannot process; and passing the BIOS credentials to the BIOS based on the user-provided credentials comprises passing BIOS credentials in a format in which the BIOS can process to the BIOS based on the user-provided credentials. ### Claim 14 (depends on 13) The method of claim 13, wherein the passing the BIOS credentials to the BIOS based on the user-provided credentials comprises: indexing a database entry based on the user-provided credentials; and passing BIOS credentials present in the indexed database entry as the BIOS credentials. ### Claim 15 (depends on 10) The method of claim 10, further comprising: during execution of the operating system determining, by the BIOS, if the BIOS credentials are valid. ### Claim 16 (depends on 15) The method of claim 15, further comprising: digitally signing or encrypting the BIOS credentials during execution of the operating system; and validating a digital signature of the BIOS credentials or decrypting the BIOS credentials by the BIOS. ### Claim 17 (depends on 15) The method of claim 15, further comprising: digitally signing or encrypting the flag by the BIOS during execution of the operating system; and during the subsequent boot, validating the digital signature of the flag or decrypting the flag by the BIOS.