Let's say that I have never experienced those corruption problems you describe, and that I can imagine lots ways to avoid them if really that's what you want.
Also let's say that most of those files are trivial to recreate, even when we're talking about disk layouts and the like (mdadm, lvm etc.) but if you can not/do not want to waste time I'm sure you are backing up your files, are you?
Files are not delicate flowers my friend, quite the contrary, but if you're a bit clumsy, here let me make it easy for you:
rsync -avi --progress /etc/ /var/etc_backup/
There you go, it is free and you can make as many as you want, you can even use your imagination and add the date to the directory name, use incremental backups etc. Use those two lines each time you unluckiest person in the universe login into a linux box.
I always marvel at people who claim that anything with the complexity of the registry is what one needs to properly store the configuration of a computer.
Seriously this comes from a hardcore Windows guy for 10 years, who was yesterday migrating the home server from a single hard disk to a raid setup, not only did I migrated all the data manually not losing or corrupting a single file, I borked the init-ramfs completely and I could fix it all by hand using the vi version that comes with busybox.