DMI Hardwareinfos via sysfs auslesen

Unter Linux lassen sich Hardwareinfos mit dmidecode auslesen. Dazu sind allerdings root-Rechte erforderlich. Einige Informationen wie BIOS-Versioninformationen können auch direkt über das sysfs ausgelesen werden.

Informationen und Zugriffsrechte

$ ls -l /sys/devices/virtual/dmi/id/
total 0
-r--r--r-- 1 root root 4096 Jan 10 11:13 bios_date
-r--r--r-- 1 root root 4096 Jan 10 11:13 bios_release
-r--r--r-- 1 root root 4096 Jan  9 15:45 bios_vendor
-r--r--r-- 1 root root 4096 Jan 10 11:13 bios_version
-r--r--r-- 1 root root 4096 Jan 10 11:13 board_asset_tag
-r--r--r-- 1 root root 4096 Jan 10 11:13 board_name
-r-------- 1 root root 4096 Jan 10 11:13 board_serial       [root-only]
-r--r--r-- 1 root root 4096 Jan  9 15:45 board_vendor
-r--r--r-- 1 root root 4096 Jan 10 11:13 board_version
-r--r--r-- 1 root root 4096 Jan 10 11:13 chassis_asset_tag
-r-------- 1 root root 4096 Jan 10 11:13 chassis_serial     [root-only]
-r--r--r-- 1 root root 4096 Jan 10 11:13 chassis_type
-r--r--r-- 1 root root 4096 Jan 10 11:13 chassis_vendor
-r--r--r-- 1 root root 4096 Jan 10 11:13 chassis_version
-r--r--r-- 1 root root 4096 Jan  9 15:45 modalias
drwxr-xr-x 2 root root    0 Jan 10 11:13 power
-r--r--r-- 1 root root 4096 Jan 10 11:13 product_family
-r--r--r-- 1 root root 4096 Jan  9 15:45 product_name
-r-------- 1 root root 4096 Jan 10 11:13 product_serial     [root-only]
-r--r--r-- 1 root root 4096 Jan 10 11:13 product_sku
-r-------- 1 root root 4096 Jan 10 11:13 product_uuid       [root-only]
-r--r--r-- 1 root root 4096 Jan  9 15:45 product_version
lrwxrwxrwx 1 root root    0 Jan  9 15:45 subsystem -> ../../../../class/dmi
-r--r--r-- 1 root root 4096 Jan  9 15:45 sys_vendor
-rw-r--r-- 1 root root 4096 Jan  9 15:45 uevent

Beispiel

bios date/release/vendor/version

$ cat /sys/devices/virtual/dmi/id/bios_date
05/04/2023

$ cat /sys/devices/virtual/dmi/id/bios_release
9.1

$ cat /sys/devices/virtual/dmi/id/bios_vendor
American Megatrends Inc.

$ cat /sys/devices/virtual/dmi/id/bios_version
0901

board asset_tag/name/serial/vendor/version

$ cat /sys/devices/virtual/dmi/id/board_asset_tag
To be filled by O.E.M.

$ cat /sys/devices/virtual/dmi/id/board_name
K14PA-U24 Series

Erfordert root-Rechte:

# cat /sys/devices/virtual/dmi/id/board_serial
221113188600078

$ cat /sys/devices/virtual/dmi/id/board_vendor
ASUSTeK COMPUTER INC.

$ cat /sys/devices/virtual/dmi/id/board_version
60SB0B60-SB0B01

chassis asset_tag/serial/type/vendor

$ cat /sys/devices/virtual/dmi/id/chassis_asset_tag
To be filled by O.E.M.

Erfordert root-Rechte:

# cat /sys/devices/virtual/dmi/id/chassis_serial
I022440094

$ cat /sys/devices/virtual/dmi/id/chassis_type
23

$ cat /sys/devices/virtual/dmi/id/chassis_vendor
ASUSTeK COMPUTER INC.

modalias

$ cat /sys/devices/virtual/dmi/id/modalias
dmi:bvnAmericanMegatrendsInc.:bvr0901:bd05/04/2023:br9.1:svnASUSTeKCOMPUTERINC.:pnRS500A-E12-RS12U:pvr00:rvnASUSTeKCOMPUTERINC.:rnK14PA-U24Series:rvr60SB0B60-SB0B01:cvnASUSTeKCOMPUTERINC.:ct23:cvr13SF02J0AM0101:skuSKU:

product family/name/serial/sku/uuid/version

$ cat /sys/devices/virtual/dmi/id/product_family
Server

$ cat /sys/devices/virtual/dmi/id/product_name
RS500A-E12-RS12U

Erfordert root-Rechte:

# cat /sys/devices/virtual/dmi/id/product_serial
R3S0MD0003SH

$ cat /sys/devices/virtual/dmi/id/product_sku
SKU

Erfordert root-Rechte:

# cat /sys/devices/virtual/dmi/id/product_uuid
c80f1d0b-346b-e17c-f3f0-a036bcc9333b

$ cat /sys/devices/virtual/dmi/id/product_version
00

sys vendor

$ cat /sys/devices/virtual/dmi/id/sys_vendor
ASUSTeK COMPUTER INC.

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