A Dos primary partition for all boot loaders?

[crazy4nix]

Firstly, thanks for yet another valuable guide. You might just be the next Boot King
I have a few questions, primarily for clarification purposes.

1. bootmgr installs on the bootsector of sda1 ?

2. The excerpt

title W2k/Xp, Vista/Win7 and MS Dos @ sda1
root (hd0,0)
chainloader +1

brings up the bootmgr, which is installed on the bootsector of sda1 ?


3. How is this bootmgr installed to the bootsector of sda1? Is it while installing say Win 7, we choose sda1 as the location where the bootmgr should install?
If bootmgr is installed to the bootsector of sda1, then that means that other bootmanager, such as ntldr is not sitting at the bootsector of sda1, but just as a file on the fat32 filesystem?

4. Since MS OS's wanna be "C" when they startup, and according to your previous guide(s), shouldn't hiding (using grub's hide parameter in menu.lst) all partitions which have MS recognizable filesystems (FAT, NTFS) before the MS partition we want to boot from come in handy? I noticed you used no such thing in your menu.lst here.


5. Function of "chainloader +1". The following excerpt...

title @ sda7
root (hd0,6)
chainloader +1

...it chainloads whatever boot loader is installed at the boot sector of 7th partition of sda. Right?

Thanks for your insights