[gentoo-user] Removing or renaming old /boot/grub directory warning

[Dale]

Howdy,

I asked about this in a thread recently but can't find it now.  Not sure
why because it wasn't that long ago.  In that thread, I was asking about
deleting /boot/grub as it was used for the old grub, not the new and
improved monster sometimes referred to as grub2.  I think it was Neil
that suggested just renaming the directory to grub.old.  Thought that
was a reasonable suggestion so that's what I did.  Dang, Neil gives some
seriously good advice plus he has those nifty signature lines.  ;-)  I
had some kworker process that just wouldn't go away and was using a good
bit of CPU time for some reason.  I decided to reboot to reset that and
guess what, grub puked all over my keyboard about a missing file. 
Anyone care to guess where that file lives? 

TLDR, skip to last paragraph.  After the nasty puking job, I had a grub
rescue prompt.  No freaking clue what to do so out comes the cell phone
and a bit of googling.  Couldn't figure it out so I dug around and found
a old Knoppix DVD and used that to boot with.  I used the mv command to
rename the directory after starting lvm, mounting stuff etc etc.  I
wanted to reinstall grub but had issues using chroot.  Anyway, I
rebooted and grub worked. 

Of course, I recently updated to a new kernel, it got about 2 seconds
into the boot up and it puked on my keyboard with a panic.  Reboot again
and use previous kernel, anyone not understand why I keep backup
kernels?  ROFL  Now here's the kicker.  After getting booted up with the
previous kernel, screen 2 on my video card wouldn't work.  That's my TV
screen.  I ended up having to do a complete power off, what some call a
hard reset.  Rebooted witha working grub, a known good kernel, that can
find all the files it needs, and my second screen comes up. 

Should I reinstall grub after removing the old directory so it puts
things where it needs to be or what?  Or does a new install have that
old directory too?  While at it, is there something that can give me
better options in cases like this or do I need to stop renaming stuff?

The reason for the post is the above questions and this.  If you have a
old grub directory in /boot, do not delete or rename that until you know
grub has all the files it needs elsewhere.  It will get upset and it
won't do you any good either.  Right now, I don't have to wash my hair,
I can just polish my head.  I pulled out a lot of hair dealing with this
and I'd rather no one else had to. 

Dale

:-)  :-)

P. S.  Since my old system rescue CD didn't work, I think it's
scratched, I'm off to make some rescue options, sysrescue and Knoppix
too, just to be sure.