Re: Upgrading ESXi 6.5U2 to ESXi 6.7U1. Completes Upgrade. Insufficient ramdisk space but ScratchConfig.CurrentScratchLocation is configured and persistent.

Hi,

Also check if the root account on ESXi still has "administrator" access.

Check /etc/vmware/hostd/authorization.xml. For root, the ACEDataRoleId value should be set to '-1', which means Administrator.

<ACEData id="10">

    <ACEDataEntity>ha-folder-root</ACEDataEntity>

    <ACEDataId>10</ACEDataId>

    <ACEDataIsGroup>false</ACEDataIsGroup>

    <ACEDataPropagate>true</ACEDataPropagate>

    <ACEDataRoleId>-1</ACEDataRoleId>

    <ACEDataUser>root</ACEDataUser>

  </ACEData>

Source: https://communities.vmware.com/thread/494782

Edit: Formatting.