查看当前 BIOS 版本

方法一:

[root@ithothub x86_64]# dmesg | grep -i bios
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000cf678fff] usable
[    0.000000] BIOS-e820: [mem 0x00000000cf679000-0x00000000cf68efff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000cf68f000-0x00000000cf6cdfff] ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000cf6ce000-0x00000000cfffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fe000000-0x00000000ffffffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000102fffffff] usable
[    0.000000] SMBIOS 2.6 present.
[    0.000000] DMI: Dell Inc. PowerEdge R710/XXXXX, BIOS 2.1.9 05/21/2010
[    0.060181] DMAR-IR: This system BIOS has enabled interrupt remapping

方法二:

[root@gateway-4 x86_64]# dmidecode |grep -i bios
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.
BIOS Information
        BIOS is upgradeable
        BIOS shadowing is allowed
        BIOS boot specification is supported
    BIOS Revision: 2.1
BIOS Language Information
        VGA/VBE BIOS, Version V3.8WO

当前版本: BIOS 2.1.9 05/21/2010

从 Dell 官方网站 以服务器SN号 和当前运行系统版本, 搜索并下载BIOS,

• 当前服务器型号: Dell R710
• 当前服务器系统: CentOS 7.8

Dell Server BIOS R710 Version 6.6.0   https://dl.dell.com/FOLDER05012856M/1/BIOS_0F4YY_LN_6.6.0.BIN

https://www.dell.com/support/home/zh-cn?app=warranty

升级BIOS

升级后重启

[root@ithothub opt]# chmod 755 BIOS_0F4YY_LN_6.6.0.BIN
[root@ithothub opt]# ./BIOS_0F4YY_LN_6.6.0.BIN
Update Package 17.10.000 (BLD_150)
Copyright (c) 2003 Dell, Inc. All Rights Reserved.
Release Title:
Dell Server BIOS R710 Version 6.6.0

Release Date:
May 31, 2018

Default Log File Name:
0F4YY6.6.0

Reboot Required:
Yes

Supported System(s):
Enterprise Servers PER710
Enterprise Servers R710

Description:
BIOS R710 Version 6.6.0

Supported Device(s):

Server BIOS 11G

The version of this Update Package is newer than the currently installed version.
Software application name: BIOS
Package version: 6.6.0
Installed version: 2.1.9



Continue? Y/N:Y
Executing update...
WARNING: DO NOT STOP THIS PROCESS OR INSTALL OTHER PRODUCTS WHILE UPDATE IS IN PROGRESS.
THESE ACTIONS MAY CAUSE YOUR SYSTEM TO BECOME UNSTABLE!
.............................................................................................................................................................
The BIOS image file is successfully loaded. Do not shut down, cold reboot, power cycle, or turn off the system, till the BIOS update is complete otherwise the
system will be corrupted or damaged. Bios update takes several minutes and it may be unresponsive during that time. Note: If OMSA is installed on the system,
the OMSA data manager service stops if it is already running.
Would you like to reboot your system now?

Continue? Y/N:Y
Connection to 192.168.1.1 closed by remote host.
Connection to 192.168.1.1 closed.

检查版本

[root@ithothub ~]# dmesg | grep -i bios
[    0.000000] DMI: Dell Inc. PowerEdge R710/0XDX06, BIOS 6.6.0 05/22/2018