You can do either (not too helpful I suppose)
If you let the installer do it's thing, then grub will be written to sda with the stanzas being held on sda7 (hd0,6).
If you opt for a manual approach you should instruct the installer to write to sda7 and then manually copy the stanzas you want from boot/grub/menu.lst on sda7 to /boot/grub/menu.lst (from root (sda6)).
It sounds more complex than it is.
thanks andy, while it may read simple. when i tried it i get lots of confusion..and after a few iteration, i get something, at least i am able to now multi-boot pclos gnome, pclos kde, pclos lxde and win7. the menu.lst is below:
color black/cyan yellow/cyan
title pclos gnome @sda6
kernel (hd0,5)/boot/vmlinuz BOOT_IMAGE=linux root=UUID=e922af00-1023-43a5-8fa0-33e9034ece4b vmalloc=256M splash=silent vga=788
title pclos kde @sda7
kernel (hd0,6)/boot/vmlinuz BOOT_IMAGE=linux root=UUID=8ccf9535-1667-4c69-9bfc-b77d1e66d8fd vmalloc=256M resume=UUID=9a24d400-3229-4679-9013-2829a771e8e0 splash=silent vga=788
title PCLOS LXDE @sda8
kernel (hd0,7)/boot/vmlinuz BOOT_IMAGE=PCLOS_LXDE root=UUID=0044de0d-b03d-45fb-b64d-de978760ad41 vmalloc=256M resume=UUID=9a24d400-3229-4679-9013-2829a771e8e0 splash=silent vga=788
title windows 7
while i am now able to boot them, during my struggle i saw below commented with #, i have not yet read manual and do not understand what it is and how this is added by grub.
when it is selected it simply loop back to the same menu.
any help in explanation is most appreciated.
#title PCLinuxOS KDE
#title PCLinuxOS Gnome
but i also copy in 'wrong sequence' because i am confused about the partition that started the boot. so i changed the following line
gfxmenu (hd0,7)/boot/gfxmenu to gfxmenu (hd0,5)/boot/gfxmenu
perhaps some help would be good for me to do it right next time..