linux need to discover local sata mirror before hba attached scsi

Posted by Ryan on Server Fault See other posts from Server Fault or by Ryan
Published on 2010-04-09T14:03:11Z Indexed on 2010/04/09 14:03 UTC
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Filed under:

linux

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scsi

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sata

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centos

(none of the machines mentioned are in production)

Hello, I'm trying to install Centos 5.4, which wants to put the boot loader on either the boot sector of the boot drive (a local SATA mirror, recognized second as sdb) or the mba of a hba-attached SCSI array (recognized first as sda). There's a LILO install already on the mba of sdb, which keeps trying to boot first.

If I zero out the MBA of sdb, would the boot loader at sdb1 be found and booted? I was thinking of that as a plan B, as I was mostly thinking of coaxing CentOS to find the local mirror first and bring that up as sda, but I haven't found info on how to do this anywhere.

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