New installation failing to take over from old installation
cl at isbd.net
Thu Jan 3 13:24:29 UTC 2013
On Thu, Jan 03, 2013 at 12:38:11PM +0000, Chris Green wrote:
> > > > What you describe suggests that the installation process put your new GRUB
> > > > on the other drive, and when you booted, it went to the old GRUB, which
> > > > was left untouched on the first drive, but where it pointed was no longer
> > > > a system.
> > > >
> > > That's much what I think too but I'm not sure I was given the
> > > opportunity to decide where to put Grub. I guess I can try once more
> > > (third time lucky!) and concentrate hard on the Grub installation
> > > questions when they come up.
> > >
> > Well it says it's found 'other' operating systems (which are the old
> > Ubuntu 11.10 installation) and that if this is all then it's safe to
> > install Grub on the MBR. So I say 'yes'.
> > However the result seems to be that I get the *old* grub still. I'll
> > just go and say 'Yes' to installing Grub on the MBR and see what the
> > result is.
> ... and the result is the same, I get the Grub menu from the old 11.10
> installation (with the 11.10 being the default boot at the top of the
> It seems as if the new installation doesn't see the 'first disk' as the
> actual first disk used when the system boots.
That was it! There are three SATA devices on the system:-
SATA Channel 1 master - CDROM
SATA Channel 2 master - 320GB disk A
SATA Channel 3 master - 320GB disk B
The BIOS had its disk boot order set up such that disk B was *before*
disk A. However the Lubuntu installation was assuming that Disk A was
the boot disk.
Resetting the BIOS so that the disk boot priority is in the same order
as their pyhsical numbering has sorted things out, lubuntu 12.10 now
I still don't really understand why the 11.10 installation somehow
managed to boot OK but still it's sorted now.
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