I have used linux to install GAG to the MBR on /dev/sdb (2nd harddisk).
This is succesful. When I boot from the BIOS if I select Disk1 I go straight into an OS, whereas if I boot to Disk 2 I get GAG.
I have two issues from here;
1. If I add an OS on the 1st partition of the 2nd harddisk, it always seems to start the OS on the 1st partition of the 1st hard disk, (Only tried with Win7 so far).
2. If I save to harddisk (I have no floppy!), it reports fine, but the next time I boot I get the GAG3: error.
I have a added a related feature request to be able to install to the MBR of a second harddisk via CD and also to be able to link to another MBR from GAG.