The first issue may be due to this issue:
http://support.microsoft.com/default.aspx/kb/950792

Don't know for sure, just guessing.

Matthijs


"MarcusB" wrote:

> For me the only second way is working. First update and later add
> Hyper-V role. The first way update is stoping after 54%
>
>
> MarcusB
>
> Paul Adare wrote:
> > On Wed, 2 Apr 2008 10:08:04 +1100, Bill Grant wrote:
> >
> >> Well the "without Hyper-V" is a bit of a giveaway!
> >>
> >> That KB is an update to Hyper-V. It won't do much on a system without
> >> Hyper-V.
> >
> > Sorry to jump in here, but this isn't the case. You can update to the RC
> > one of two ways:
> >
> > 1. Install the Hyper-V role and then install the update.
> > 2. Install the update and then install the Hyper-V role.
> >
> > I've done it both ways and both work equally well. If the OP is using
> > Server 2008 RTM then the Hyper-V role should appear in the list of
> > available roles regardless of whether or not the KB update has been
> > installed.
> > The installation of the KB does not install the Hyper-V role, but it will
> > cause the Hyper-V role to be at RC0 if one runs the Add Roles wizard after
> > the KB is installed.
> > I'm guessing that the OP hasn't actually installed the role yet, though
> > that is a little unclear. If that is the case, and the KB has already been
> > installed then all he needs to do at this point is to add the role and
> > he'll be at RC0.
> >
>