Hello to all first. I have fully function valid virtual box/pc hard disk, but when i am going to mount this i found errors that partitions are not valid some one please help me. and if you know anything about it please share with me it will be grate full thanks. i use this command to mount in menu.lst. title Boot XP from image file map /debjit.vhd (hd0) map --rd-size=2048 map --mem (rd)+4 (0x55) map --hook write (0x55) #GRUB4DOS\x00v=1\x00xp.vhd\x00\x80\x00 root (hd0,0) chainloader /ntldr another title Boot XP from image file map /deb.vhd (hd0) map --hook root (hd0,0) chainloader /ntldr boot Please reply soon. plese help my thanks