How to check BIOS version/information in Linux ?
Today in this post, we will see how to check the BIOS version and other information on a Linux server.
Lets have a look how to check this.
1. Specifying particular option with dmidecode.
[root@ngelinux001 ~]# dmidecode -s bios-version 2.1.5 [root@ngelinux001 ~]# dmidecode -s bios-release-date 04/11/2016 [root@ngelinux001 ~]# dmidecode -s bios-vendor Dell Inc. [root@ngelinux001 ~]#
2. Grep required information from dmidecode
[root@ngelinux001 ~]# dmidecode | egrep -iA8 "bios information|system information"
BIOS Information
Vendor: Dell Inc.
Version: 2.1.5
Release Date: 04/11/2016
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 16384 kB
Characteristics:
ISA is supported
--
System Information
Manufacturer: Dell Inc.
Product Name: PowerEdge R630
Version: Not Specified
Serial Number: 9XXXXX2
UUID: 4C4C4544-0059-4410-8037-B9C04F43XXXX
Wake-up Type: Power Switch
SKU Number: SKU=NotProvided;ModelName=PowerEdge R630
Family: Not Specified
[root@ngelinux001 ~]#
3. Specifying type to get all information.
[root@ngelinux001 ~]# dmidecode --type bios
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.8 present.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: Dell Inc.
Version: 2.1.5
Release Date: 04/11/2016
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 16384 kB
Characteristics:
ISA is supported
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
5.25"/360 kB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Function key-initiated network boot is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 2.1
Handle 0x0D00, DMI type 13, 22 bytes
BIOS Language Information
Language Description Format: Long
Installable Languages: 1
en|US|iso8859-1
Currently Installed Language: en|US|iso8859-1
[root@ngelinux001 ~]#
4. By reading /sys filesystem data.
[root@ngelinux001 ~]# cat /sys/class/dmi/id/bios_version 2.1.5 [root@ngelinux001 ~]# cat /sys/class/dmi/id/bios_ bios_date bios_vendor bios_version [root@ngelinux001 ~]# cat /sys/class/dmi/id/bios_* 04/11/2016 Dell Inc. 2.1.5 [root@ngelinux001 ~]#