Where is that post from O-P where he explains very nicely, in some detail and colourful how to get grub into the MBR forever and how to use it without having all this trouble ....
That would be an interesting find ........ I have never read anything on this forum about automatically picking up changes in other distros which use Grub2, except by the use of the chainloader boot option.
BTW ...... "how to get grub into the MBR forever
" ..... is not possible, as it can be overwritten or wiped at any time.
how to use it without having all this trouble
You appear to have misunderstood the 'problem' Aleph is trying to overcome.
the only solution I am aware of to the problem of automatically picking up changes in other distros Grub configuration file, is to set things up as I mentioned previously ....... install Grub to the boot sector of each distro and call those individual Grubs by using chainloader entries in the master PCLOS Grub menu.lst.
If there is another way, it would be great to read about it, as apparently using the utility to redo the MBR does not work as required.
I would have thought that this would do the same thing ..... reading back I am unsure if you tried it ....
(see O-P's post on previous page)