Quick tip: How to query CPU microcode revision on a ESXi

SSH to the ESXi host and execute the following command:


vsish -e cat /hardware/cpu/cpuList/0 | grep -i -E 'family|model|stepping|microcode|revision'

Output:


[root@esxi:~] vsish -e cat /hardware/cpu/cpuList/0 | grep -i -E 'family|model|stepping|microcode|revision'
Family:6
Model:60
Stepping:3
Number of microcode updates:1
Original Revision:0x0000001c
Current Revision:0x00000027
[root@esxi:~]