Tech/libsmbios dellBiosUpdate

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BIOS Update Process using libsmbios dellBiosUpdate

Libsmbios is used for both flash. You will need to install it before you start. It is assumed throughout this page that all commands will be run as the 'root' user. Use either 'sudo' or 'su' to become root before attempting any of these commands or they will fail.

  • Install libsmbios
# apt-get update    (not always necessary)
# apt-get install libsmbios-bin
  • Get the System ID
# getSystemId 
Libsmbios:    0.12.1
System ID:    0x01DD
Service Tag:  DT6WLB1
Express Service Code: 30063287773
Product Name: Dell DM061
BIOS Version: 2.3.2
Vendor:       Dell Inc.
Is Dell:      1
  • Download the latest BIOS ".HDR" file for this system. Go here: http://linux.dell.com/repo/firmware/bios-hdrs/. Scroll down the list to find a directory matching the System ID from the previous step. The directory will be named: system_bios_ven_0x1028_dev_SYSTEM_ID_version_BIOS_VERSION. Go into this directory and download the file, "bios.hdr".
  • load the dell_rbu driver
# modprobe dell_rbu
  • update the bios
# dellBiosUpdate -u -f ./bios.hdr-2.3.2 
Supported RBU type for this system: (MONOLITHIC)
Using RBU v2 driver. Initializing Driver. 
Setting RBU type in v2 driver to: MONOLITHIC
Prep driver for data load.
Writing RBU data (4096bytes/dot): ............................
..............................................................
.......................
Notify driver data is finished.
Activate CMOS bit to notify BIOS that update is ready on next boot.
Update staged sucessfully. BIOS update will occur on next reboot.
  • reboot the system
# reboot
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