To revert to a previous version of ESXi:
Notes:
Back up your configuration data before making any changes. For more information, see Backing up and restoring ESXi configuration using the vSphere Command-Line Interface and vSphere PowerCLI (2042141).
Reverting an ESXi host is only valid if the host was updated using these methods:
VIB installation or removal
Profile installation or removal
ESXi host update using VMware Update Manager
Updated from a ISO
In the console screen of the ESXi host, press Ctrl+Alt+F2 to see the Direct Console User Interface (DCUI) screen.
Press F12 to view the shutdown options for the ESXi host.
Press F11 to reboot.
When the Hypervisor progress bar starts loading, press Shift+R. You will see the warning:
Current hypervisor will permanently be replaced
with build: X.X.X-XXXXXX. Are you sure? [y/n]Press Y to roll back the build.
Press Enter to boot.
Tags
roll back host, reverting previous ESXi, downgrade esxi 6 to 5.5
Keywords
roll back host reverting previous ESXi
See Also
ESX/ESXi Express Patch or debug driver rollback instructions (1031240)
Backing up and restoring ESXi configuration using the vSphere Command-Line Interface and vSphere PowerCLI (2042141)
アップグレードに失敗した後、前のバージョンの ESXi に戻る (2094334)
恢复为早期版本的 ESXi (2097598)
