[GLLUG] Help with Centos: old disks in new PC

Jan Henkins jan at henkins.za.net
Sat Nov 9 12:46:16 UTC 2013

Hello Alain, 

Did you reinstall grub? Could be that the new system enumerates the drives differently. 

Jan Henkins 

Alain Williams <addw at phcomp.co.uk> wrote:

>A customer of mine cooked a machine, it became unreliable. I bought a new
>machine and moved the disks over. Boot off CD; mount the file systems on the
>hard disks; chroot and run dracut - that creates a new /boot/initramfs.
>However: when I boot off hard disk it does not work.
>If I edit the command line via grub to remove 'quiet' and boot, I see many
>kernel startup messages that fly past - too fast to read. The screen then
>changes to a graphical mode and the system stops.
>What is displayed is what was in video ram reinterpretted in the new mode - ie
>nothing sensible, nothing readable, no images, ...
>The caps lock & scroll lock lights are flashing. No disk activity that I can
>Help please.
>The old system was a 32 bit system, the new is 64 bit AMD A4-5300 3.4Ghz Dual
>Core with 4GB RAM (the cheapest that I could get). I always assumed that a 32
>bit OS would work just as well on a 64 bit box.
>Booting with a 32 bit version of centos off a CD works without any problem, just
>as I would expect -- the same that is installed on the hard disk.
>If it is a graphic problem it would be perfectly acceptable to disable graphics
>mode, the machine will run headless (it is a remote backup box).
>This is what I bought (without any hard disks since I had the old ones):
>    http://www.rlsupplies.co.uk/product.php?id_product=2203193
>Alain Williams
>Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
>+44 (0) 787 668 0256  http://www.phcomp.co.uk/
>Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php
>#include <std_disclaimer.h>
>GLLUG mailing list
>GLLUG at mailman.lug.org.uk

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