I installed CentOS 6 with the default settings (sda1, sda2), read the
grub manual and went to the root command prompt
and typed:
#grub-install /dev/sd1
/dev/sda1 was what was in the docs.
After that I reboot and get a black screen with a blinking white cursor.
I boot with the CentOS CD in rescue mode and get to the root prompt and
type:
At the shell, I type:
#grub-install /dev/sda
I get a message:
/sbin/grub: Not found.
sh-3.2#
Why does this happen?
#which grub-install reveals:
/usr/sbin/grub-install
Where do I checkout the grub code to fix this incorrect path to
/sbin/grub in /usrs/sbin/grub-install?
My last question is what do I do now specifically such that I can undo
what grub-install did (very step by step specifically) so that my CentOS
system will boot.
The disk in the drive was the only disk there when I installed CentOS,
no other os was there.
Can anyone, anywhere tell me what exactly/specifically needs to be done
to undo whatever it was that my first #grub-install /dev/sda1 messed up?
Is there a way to modify the grub code such that it never messes up a
system to make it such that it does not boot? like for example if
something is wrong with a configuration or the command is not correct,
it will not run and say "dave I can't do that" or something such that
many hours are not sucked out of lives trying to get a system going again?
I am willing to go make grub more user friendly, apparently it needs
some work if it will completely hose a customers system such that it
will not boot. Also I can edit the documentation with a list of things
to not do , if indeed I did something wrong.
I just want my system to boot again and to use grub to boot off of one
of three drives in the system. Is this possible?
J.V.
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