Starting with this release, by default, signature verification files must be supplied with upgrade images and add-on packages on installation on the System Configuration > System Administration > Update Software page. Installation will not be permitted unless the usual update integrity checks and the additional signature verification check succeed.

This behavior can be controlled by changing the setting of the Update Verification Options setting on the System Configuration > Miscellaneous Options > WUI Settings page. There are three settings available:

  • Required: (Default) The signature verification file settings are visible and providing the signature file is mandatory.
  • Optional: The signature verification file settings are visible, but providing the signature file is optional.
  • No verification file - deprecated: (Not Recommended) The verification file settings are not visible and providing the signature file is not possible in the UI. This is the legacy setting used in older LMOS releases and is included for backwards compatibility only.

Note that the update integrity checks mentioned above cannot be disabled and must always succeed in order for an installation to proceed.