From: Zhang Shengju <zhang...@gmail.com> After validation check, the 'checksum' is not written back to footer, which leave it with zero.
This results in errors while loadding it under Microsoft's Hyper-V environment, and also errors from utilities like Citrix's vhd-util. Signed-off-by: Zhang Shengju <sean_zh...@trendmicro.com.cn> Signed-off-by: Kevin Wolf <kw...@redhat.com> --- block/vpc.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/block/vpc.c b/block/vpc.c index 706faf3..5cd13d1 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -189,6 +189,9 @@ static int vpc_open(BlockDriverState *bs, int flags) fprintf(stderr, "block-vpc: The header checksum of '%s' is " "incorrect.\n", bs->filename); + /* Write 'checksum' back to footer, or else will leave it with zero. */ + footer->checksum = be32_to_cpu(checksum); + // The visible size of a image in Virtual PC depends on the geometry // rather than on the size stored in the footer (the size in the footer // is too large usually) -- 1.7.6.5