Dmidecode 这款软件允许你在 Linux 系统下获取有关硬件方面的信息。Dmidecode 遵循 SMBIOS/DMI 标准,其输出的信息包括 BIOS、系统、主板、处理器、内存、缓存等等。
命令格式 : dmidecode -t typecode
typecode 对应的编码如下:
0 BIOS
1 System
2 Base Board
3 Chassis
4 Processor
5 Memory Controller
6 Memory Module
7 Cache
8 Port Connector
9 System Slots
10 On Board Devices
11 OEM Strings
12 System Configuration Options
13 BIOS Language
14 Group Associations
15 System Event Log
16 Physical Memory Array
17 Memory Device
18 32-bit Memory Error
19 Memory Array Mapped Address
20 Memory Device Mapped Address
21 Built-in Pointing Device
22 Portable Battery
23 System Reset
24 Hardware Security
25 System Power Controls
26 Voltage Probe
27 Cooling Device
28 Temperature Probe
29 Electrical Current Probe
30 Out-of-band Remote Access
31 Boot Integrity Services
32 System Boot
33 64-bit Memory Error
34 Management Device
35 Management Device Component
36 Management Device Threshold Data
37 Memory Channel
38 IPMI Device
39 Power Supply
40 Additional Information
41 Onboard Device
例如:
使用dmidecode -t 1 可以查看主板信息(制造商、型号、序列号等等)
使用dmidecode -t 4 可以查看CPU信息(CPU数目、型号、大小、频率等等)常用参数:
- -d, --dev-mem FILE Read memory from device FILE (default: /dev/mem)
从设备文件读信息,输出内容与不加参数标准输出相同 - -h, --help Display this help text and exit
显示帮助信息 - -q, --quiet Less verbose output
显示更少的简化信息 - -s, --string KEYWORD Only display the value of the given DMI string
只显示指定DMI字符串的信息 - -t, --type TYPE Only display the entries of given type
只显示指定条目的信息 - -u, --dump Do not decode the entries
显示未解码的原始条目内容 - --dump-bin FILE Dump the DMI data to a binary file
- --from-dump FILE Read the DMI data from a binary file
- -V, --version Display the version and exit
显示版本信息
# dmidecode | grep 'Product Name' #查看服务器型号 # dmidecode |grep 'Serial Number' #查看主板的序列号 # dmidecode -s system-serial-number #查看系统序列号 # dmidecode -t memory #查看内存信息 # dmidecode -t 11 #查看OEM信息