esxi upgrade Could not find a trusted signer.')

[bluesea2010]

Hi,

Please help on the error  Could not find a trusted signer.')

[root@localhost:~] esxcli software profile update -p VMware-ESXi-6.7.0-17700523-Custom-Cisco-6.7.3.1-Bundle -d /vmfs/volumes/datastore1\ \(1\)/OVA-ISO/VMware/VMware-ESXi-6.7.0-17700523-Custom-Cisco-6.7.3.1-Bundle.zip

 [InstallationError]

 ('INT_bootbank_ixgben_1.8.7-1OEM.670.0.0.8169922', 'Could not find a trusted signer.')

       vibs = INT_bootbank_ixgben_1.8.7-1OEM.670.0.0.8169922

 Please refer to the log file for more details.

here is the version 

root@localhost:~] vmware -vl

VMware ESXi 6.0.0 build-3073146

VMware ESXi 6.0.0 Update 1

Thanks

[Kirk J · Accepted solution]

Try appending parameter:   --no-sig-check

Kirk...