===update host===
esxcli software vib install -d /vmfs/volumes/datastore1/patch-directory/ESXi670-201901001.zip
esxcli software vib install -d /vmfs/volumes/5d362b5b-50b676e7-bdc0-8cdcd4affb10/gen8/VMware-ESXi-6.7.0-Update3-14320388-HPE-Gen9plus-670.U3.10.4.5.19-Aug2019-depot.zip

esxcli software vib install -d /vmfs/volumes/5d362b5b-50b676e7-bdc0-8cdcd4affb10/gen8/ESXi670-201911001.zip

===update host by profile===
esxcli software profile get

list profile:
esxcli software sources profile list -d /vmfs/volumes/5d362b5b-50b676e7-bdc0-8cdcd4affb10/gen8/ESXi670-201911001.zip

esxcli software profile update -p ESXi-6.7.0-20191104001-standard -d /vmfs/volumes/5d362b5b-50b676e7-bdc0-8cdcd4affb10/gen8/ESXi670-201911001.zip

esxcli software profile update -p ESXi-6.5.0-20191104001-standard -d /vmfs/volumes/5d362150-fd6d451a-e961-8cdcd4affb10/ESXi650-201911001.zip

https://www.vladan.fr/upgrade-esxi-6-x-to-6-7-via-cli-two-methods/


===backup esxi conf===
<ssh>
vim-cmd hostsvc/firmware/sync_config
vim-cmd hostsvc/firmware/backup_config


<powercli>
Connect-VIServer 192.168.28.10 -user root -password <password>
Get-VMHostFirmware -VMHost 10.0.0.1 -BackupConfiguration -DestinationPath C:\Downloads 
 
==restore esxi conf====
<powercli>
Connect-VIServer 192.168.28.10 -user root -password <password>
Set-VMHost -VMHost ESXi_host_IP_address -State 'Maintenance'
Set-VMHostFirmware -VMHost 10.0.0.1 -Restore -SourcePath c:\bundleToRestore.tgz -HostUser root -HostPassword exampleRootPassword

<ssh>
vim-cmd hostsvc/maintenance_mode_enter
vim-cmd hostsvc/firmware/restore_config /tmp/configBundle.tgz 


===reset esxi6 root pwd===
https://www.vladan.fr/how-to-reset-esxi-6-x-root-password-and-under-which-conditions/