on 10-29-2008 5:54 PM Monty Shinn spake the following: > Phil Schaffner wrote: > > <snip> >> A GRUB boot CD (or floppy) will allay the above concerns. Do an "info >> grub" to find out how to create one. Can also boot from install media >> to recover a lost GRUB. >> >>> I did not find an option during the install prep to re-locate grub to >>> the MBR of /dev/sdb. I probably should try the text-based installer >>> to see if there are more options. >> >> It is there in the GUI installer - can't remember exactly where >> without going through the install, but something like an "Advanced" >> button on a configuration page toward the end of the process. >> >>> Heck, I may just remove the 9550 board until the initial os install >>> is completed. That should accomplish what I am trying to achieve. >>> Just seems like there should be a more elegant way of doing this. >>> >>> I am installing 5.1 because I have the isos on hand. I was just >>> going to let yum update me to 5.2... >> >> That should work. >> >>> Thanks for your help, >> >> OK >> >> Phil >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos > > Phil, > > Thanks for your input. I did find the location of the grub install > modification. Strange thing is, when I restarted the install, grub > defaulted to the MBR of /dev/sdb. I did not change any hardware or bios > settings in between attempts. I have no idea why the change happened. > > Once the install was completed, the OS partition showed up as /dev/sda, > even though it showed up as /dev/sdb during the installation process. > Grub is apparently happily residing in the MBR of /dev/sda. Again, I > can't explain it. > > If you (or anyone else) has insights to this behaviour, or can point me > to where I can read up on it, I would appreciate it. > > Thanks again for all your help. > > Monty The only thing I can add is since you have 2 different families of 3ware cards, one is using the 3w-9xxx driver and the other is using the 3w-xxxx driver. Whichever driver that loads first will determine which card initializes first. First array gets /dev/sda. I think there are ways to force a driver to load first, you have to adjust the alias scsi_hostadapter lines in /etc/modprobe.conf in the order you want them to load like; alias scsi_hostadapter 3w-xxxx alias scsi_hostadapter1 3w-9xxx and then make a new initrd. Since yours seems ok now, this is for posterity. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!! -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 250 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20081030/24a9c700/attachment-0005.sig>