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Description of problem:
My experience, and talking with others, one of the hardest rescue
operations is repairing a non-booting system.  

After a recent non-booting situation, I had to resolve by re-upgrading
FC-1 on top of a just upgraded FC-1 (a procedure which eventually
worked, but had other problems).

The rescue mode offers a command prompt, and access to GRUB commands,
but no rescue operation; just poking and proding with GRUB commands
(which never solved the problem for me).

Better would be a bootloader repair tool (and ideally a suite of tools
to fix common problems) offered in rescue mode.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
Go into rescure mode, try to learn about GRUB from scratch, and repair
a broken boot.

Actual Results:  In my case it failed.

Expected Results:  Would hope to run a repair tool, which which after
a few Q & A, would fix my unbootable system.

Additional info: