[vbox-dev] Fwd: VHD not readable by Hyper-V

[Huihong Luo]

Sent from my iPhone

Begin forwarded message:

From: Huihong Luo <huisinro at yahoo.com>
Date: October 13, 2009 6:35:42 AM PDT
To: Shu Wu <superwushu at gmail.com>
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 

Sent from my iPhone

On Oct 13, 2009, at 2:27 AM, Shu Wu <superwushu at gmail.com> 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 <Klaus.Espenlaub at sun.com>
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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