We just updated our Windows Server 2012 test setup here to Windows Server 2012 R2 (i.e. using Hyper-V 2012 R2 now).

We are creating new Hyper-V instances using our PXE boot environment (which boots you into a FreeBSD 9.1 amd64 O/S) - we'd build a Hyper-V aware kernel etc. from that (after SVN'ing the latest Hyper-V project source).

Hyper-V would take seconds to boot this - but since changing over to R2 it takes a 'very, very long time'.

The initial PXE bit happens quickly (i.e. seeing the server, and getting the BTX output out) but then it gets stuck with the \ spinner - it'll spin for a short time, stop, spin again for a short time, stop again.

It *does complete* if you leave it - but it takes minutes (e.g. around 5-10 minutes!).

This is with creating a 'Generation 1' Hyper-V instance - and replacing the 'Network Card' (which is added by default) with the 'Legacy Network Card'.

Anyone noticed anything similar?


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