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Begin forwarded message:

From: Huihong Luo <[email protected]>
Date: October 13, 2009 6:35:42 AM PDT
To: Shu Wu <[email protected]>
Subject: Re: [vbox-dev] VHD not readable by Hyper-V


No problem with vpc, vbox also understands vhds from hyper-v

It is just that hyper-v doesn't understand vbox's vhd 

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On Oct 13, 2009, at 2:27 AM, Shu Wu <[email protected]> wrote:

Can your VHD disk be read by Virtual PC or Virtual Server? It seems that 
Hyper-V and Virtual-PC share the same vhd format. One year ago I wrote my own 
program to generate a vhd file and make it to be accepted by Virtual PC, just 
following the official vhd specification. But I haven't tested it on Hyper-V.

Cheers,

Wu Shu

2009/10/13 Klaus Espenlaub <[email protected]>
Huihong Luo wrote:
None of vbox created vhd disk files are readable by 2008 Hyper-V.
 This is the error: "The file or directory is corrupted and unreadable"
 I am debugging through the code, trying to change Footer info, such as 
version, creator OS, checksun, etc., to see it can correct the error.
 If you know what might be wrong, pls post

We only know what Microsoft documents in their VHD format spec, which we 
believe to have correctly implemented. However as usual those specs are 
incomplete and not really precise, so there's plenty of room for different 
interpretations.

Klaus


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