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

Shu Wu superwushu at gmail.com
Tue Oct 13 09:27:27 GMT 2009

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


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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