When installing Enterprise Console on a computer with mapped NetWare volumes, the administrative MSI installation (which expands the SUM MSI into the installset share) hangs while doing the MSI action
(an internal action).
The problem is internal to the Windows Installer itself and has no bearing on the SUM installer specifically. Any administrative installation (i.e. msiexec /a) will exhibit the same problem. This is because MSI attempts to discover all network drives that it can deploy to.
Known to apply to the following Sophos product(s) and version(s)
The operating systems related to this article if any.
What To Do
The workaround is to remove the NetWare volume mapping (i.e. disconnect the network drive).