You possible may copy the mbr with
Code:
dd if=/dev/sda of=/dev/sdb bs=512 count=1
And to check :
Code:
dd if=/dev/sdb of=/MBRsdb bs=512 count=1
and
should look like
/MBRsdb: x86 boot sector;
partition 2: ID=0xf, starthead 254, startsector 71312535, 905455530 sectors;
partition 3: ID=0x83, starthead 254, startsector 20755980, 20627460 sectors;
partition 4: ID=0x83, starthead 254, startsector 41383440, 29929095 sectors, code offset 0x5e
The output above is done using grub4dos-V0.4.4 . Why partition 1 is missing I don't know .
Grub4dos is installed to partition 1 . Works ok for me .