id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
6840,Unable start vhd file. Host: Windows 7. Guest: server windows server 2003.,ilLeo,,"Hello, i'm trying to use a virtual machine (vhd file) that i have already used on Hyper-v on VirtualBox v.3.2.0
the guest system (Windows Server 2003) don't start and virtualbox show me a black screen and nothing happen.
i have seen the log file, that is attached at this post, and i found this error:

00:00:04.427 Guest Log: BIOS: Boot from Floppy 0 failed
00:00:04.428 Guest Log: BIOS: CDROM boot failure code : 0003
00:00:04.429 Guest Log: BIOS: Boot from CD-ROM failed
00:00:04.430 Guest Log: BIOS: Booting from Hard Disk...
00:00:04.752 Guest Log: BIOS: int13_harddisk: function 15, unmapped device for ELDL=81

i have searched on other post a solution for this problem but without lucky.
any help is very usefull
Regards
Leo",defect,closed,other,VirtualBox 3.2.0,invalid,,,Windows,Windows