HP t420 Troubleshooting Guide - Page 40

System BIOS, Updating or restoring a BIOS, HP Device Manager, Windows BIOS Flashing - thin client review

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F System BIOS Updating or restoring a BIOS HP Device Manager HP Device Manager can be used to update the BIOS of a thin client. Customers can use a pre-built BIOS add-on or can use the standard BIOS upgrade package along with an HP Device Manager File and Registry template. For more information on HP Device Manager File and Registry templates, review the HP Device Manager User Guide found at www.hp.com/go/hpdm. Windows BIOS Flashing You can use the BIOS Flash Update SoftPaq to restore or upgrade the system BIOS. Several methods for changing the BIOS firmware stored on your computer are available. The BIOS executable is a utility designed to flash the System BIOS within a Microsoft Windows environment. To display the available options for this utility, launch the executable file under the Microsoft Windows environment. You can run the BIOS executable with or without the USB storage device. If the system does not have a USB storage device installed, the BIOS update will perform under the Microsoft Windows environment and followed by system reboot. Linux BIOS Flashing You can use the hp-flash utility and its associated driver to update the BIOS on systems running Linux. After the driver loads, execute the utility from a command prompt with administrator privileges. The HP ThinPro or HP Smart Client Linux OS images include the utility for updating the BIOS, but the binary file to flash must be copied from the DOS Flash folder to the unit. Review the README.txt file for more specific instructions in the SoftPaq. The Linux Flash folder also contains the files necessary to build the BIOS flash driver module for the particular kernel being used; the hp-flash utility is not kernel-dependent other than the choice of 32-bit (i686) and 64-bit (x86_64) flavors. BootBlock Emergency Recovery Mode In the event of a failed BIOS update (for example if power is lost while updating), the System BIOS may become corrupted. BootBlock Emergency Recovery Mode detects this condition and automatically searches the root directory of the hard drive and any USB media sources for a compatible binary image. Copy the binary (.bin) file in the DOS Flash folder to the root of the desired storage device, and then power on the system. Once the recovery process locates the binary image, it attempts the recovery process. The automatic recovery continues until it successfully restores or updates the BIOS. If the system has a BIOS Setup password, you may need to use the Startup Menu / Utilities submenu to flash the BIOS manually after providing the password. Sometimes there are restrictions on which BIOS versions are allowed to be installed on a platform. If the BIOS that was on the system had restrictions, then only allowable BIOS versions may be used for recovery. 34 Appendix F System BIOS

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F
System BIOS
Updating or restoring a BIOS
HP Device Manager
HP Device Manager can be used to update the BIOS of a thin client. Customers can use a pre-built BIOS add-on
or can use the standard BIOS upgrade package along with an HP Device Manager File and Registry template.
For more information on HP Device Manager File and Registry templates, review the
HP Device Manager User
Guide
found at
www.hp.com/
go/hpdm
.
Windows BIOS Flashing
You can use the BIOS Flash Update SoftPaq to restore or upgrade the system BIOS. Several methods for
changing the BIOS
firmware
stored on your computer are available.
The BIOS executable is a utility designed to
flash
the System BIOS within a Microsoft Windows environment.
To display the available options for this utility, launch the executable
file
under the Microsoft Windows
environment.
You can run the BIOS executable with or without the USB storage device. If the system does not have a USB
storage device installed, the BIOS update will perform under the Microsoft Windows environment and
followed by system reboot.
Linux BIOS Flashing
You can use the
hp-flash
utility and its associated driver to update the BIOS on systems running Linux. After
the driver loads, execute the utility from a command prompt with administrator privileges. The HP ThinPro or
HP Smart Client Linux OS images include the utility for updating the BIOS, but the binary
file
to
flash
must be
copied from the DOS Flash folder to the unit. Review the README.txt
file
for more
specific
instructions in the
SoftPaq. The Linux Flash folder also contains the
files
necessary to build the BIOS
flash
driver module for the
particular kernel being used; the
hp-flash
utility is not kernel-dependent other than the choice of 32-bit
(i686) and 64-bit (x86_64)
flavors.
BootBlock Emergency Recovery Mode
In the event of a failed BIOS update (for example if power is lost while updating), the System BIOS may
become corrupted. BootBlock Emergency Recovery Mode detects this condition and automatically searches
the root directory of the hard drive and any USB media sources for a compatible binary image. Copy the binary
(.bin)
file
in the DOS Flash folder to the root of the desired storage device, and then power on the system.
Once the recovery process locates the binary image, it attempts the recovery process. The automatic recovery
continues until it successfully restores or updates the BIOS. If the system has a BIOS Setup password, you may
need to use the Startup Menu / Utilities submenu to
flash
the BIOS manually after providing the password.
Sometimes there are restrictions on which BIOS versions are allowed to be installed on a platform. If the BIOS
that was on the system had restrictions, then only allowable BIOS versions may be used for recovery.
34
Appendix F
System BIOS