Viewing BIOS information from Windows, Linux

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Knowing your BIOS information, e.g. Revision or Release Date, can be critical in troubleshooting your hardware (and even software in some cases) issues.

This begs the question, where do you find this information? Well, you could obviously just reboot your PC/Server, go into your BIOS and get the information there. Of course, not all of us have the luxury of being able to boot our PC and going into the BIOS at free will. Especially in either ‘headless’ or off-site boxes.

So, to view BIOS info in Linux, you can do the following command (You must be ‘root’ in non-sudo type releases)

#enter the following to see all the possible keywords 
#you can use to view information
demo@techedemic:~$ sudo dmidecode -s
dmidecode: option requires an argument -- 's'
String keyword expected
Valid string keywords are:
  bios-vendor
  bios-version
  bios-release-date
  system-manufacturer
  system-product-name
  system-version
  system-serial-number
  system-uuid
  baseboard-manufacturer
  baseboard-product-name
  baseboard-version
  baseboard-serial-number
  baseboard-asset-tag
  chassis-manufacturer
  chassis-type
  chassis-version
  chassis-serial-number
  chassis-asset-tag
  processor-family
  processor-manufacturer
  processor-version
  processor-frequency
 
#Taking the above in consideration, you could, for 
#instance, view the BIOS release date with the following 
#command
demo@techedemic:~$ sudo dmidecode -s bios-release-date
04/28/2009

In Windows, it’s even simpler..

#Execute the following command. You will get loads of 
#information regarding your system, but I've 'cut out' 
#the section showing you the BIOS information:
 
C:\Users\techedemic>systeminfo
...
...
BIOS Version:              LENOVO     30CN56WW  , 2010/05/18
...
...

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