This isn't a development question, but I'm hoping the list's knowledge
of GRUB will help me understand it.
Running Ubuntu 9.04, everything up-to-date, package "grub-pc" version 1.96+
GRUB-2 was installed after having GRUB 0.9x running for years. The
installation involved letting GRUB chainload GRUB-2 until I saw it was
ready for primetime, then running an upgrade script. I mention that
because it's important to know that there is still a GRUB 0.9x image
somewhere.
Trying to get past a nasty problem involving the interaction between a
2003 Phoenix BIOS, and a big 160-GB disk that would not have been
available in 2003. I used BIOS setup to change the disk detection to
manual, and made sure the numbers that came up were the same as after a
successful boot.
Booted, and WHOA! I got the system-selection screen from GRUB 0.9x.
But, it included versions of the kernel that were not installed until
after I switched to GRUB-2. Actually, the only thing I'm sure was
"wrong" was the lack of a colorful splash image. Well, no, actually,
I'm fairly sure the console displays were not the same as the "WELCOME
TO GRUB" that shows at the start of the GRUB-2 boot; but it goes past
pretty quick, and I could be wrong about that.
So, maybe I hosed my GRUB-2 installation. That wouldn't explain how a
GRUB 0.9x image was found. Anyway, I re-installed the package and
(re)ran grub-install. And rebooted. And got the same screen.
So, eliminate the one variable I knew was changed: I reset the BIOS
Setup to do automatic disk detection. Voilla!!
I'm back with the GRUB-2 splash screen, and everything is cool.
But, I'm puzzled [yeah, that is my normal state]. Did the BIOS actually
read a different image? Or, did the "old" GRUB fail to chainload, even
though there is no visible sign during a normal boot that the old GRUB
is still around? If the latter, should I consider writing the GRUB-2
image onto the MBR again? Or, would that be just asking for trouble?
TIA
--
David A. Cobb, computing t-rex.
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