[Linux-PowerEdge] ] CentOS R410 SAS config issues
Rhea, Cristopher J.
crhea at mayo.edu
Thu Jul 18 08:20:37 CDT 2013
I have two R410 servers, each configured identically. Each server has 4 70GB SAS drives hooked up to it's 6i/R controller. I'm trying to configure each to have two RAID1 mirrors. The problem is when I do this, then go to install CentOS, it will install but then won't boot after the install is finished. It doesn't make it to the bootloader (grub).
It has something to do with the fact that I have two virtual drives configured. If I make the other two drives hot spares of the first RAID1 mirror I create, it will install & boot fine. I'm making sure I install the boot loader on the right virtual drive too.
BIOS only allows chosing one virtual drive. Changing the 6i/R's boot settings (BIOS/OS) doesn't help. At this point I'm stumped. I'm not sure what else I can try. I'm wondering if there's some limitation I don't know about. Any help is appreciated.
Flip the boot order of the LUNs.
I've had situations in loading RedHat/CentOS where the drive order the OS saw is not what the BIOS
uses for boot (i.e., grub installed on the "wrong" disk).
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