Worse problem with upgrading 12.04 to 14.04

[J.L. Blom]

Today I encountered an even worse problem with upgrading.
I upgraded another system (my wife´s) and ended after booting with the 
¨grub rescue¨.
Googling for this problem it seems that it still not has been solved. 
Only some workarounds are given, but I assume that these will drive 
laymen (and I assume that is the bulk of the ubuntu users) immediately 
back to M$W.
This problem exists at least since the first release of this version 
(april) and is still not solved 
(https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1289977).
The problem does´nt occur with all systems and I don´t know what exactly 
the reason is why it occurs with some updates (my wife´s system) and 
others not (mine).
It seems that solving the problem using the Super Grub Disk make the 
problem disappears The reason seems to be the difference between grub 
2.00 and grub 2.02. But I think it a very serious problem!!
I don´t have the Super grub disk so I have to find another way. 
Hopefully someone else has figured exactly out where the problem is and 
can give me the solution for a work around as the solutions given 
does´nt work (although I haven tried all).
Joep