[CentOS] CentOS 5 grub boot problem

[Bowie Bailey]

On 8/5/2015 1:00 PM, Chris Murphy wrote:
> On Wed, Aug 5, 2015 at 10:52 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote:
>> How would I go about pointing it at the partition?
>>
>> What I am currently doing is this:
>> device (hd0) /dev/hdg
>> root (hd0,0)
>> setup (hd0)
>
> setup (hd1,0)
>
> It's hd1 if your device map is correct and hdg is hd1. And then ,0 is
> for the first partition assuming that's an ext3 boot partition.

What I am doing on my other system (where everything is working), is 
forcing grub to install to both drives as hd0.  I found that when the 
first drive dies and I remove it from the system, grub will see the 
remaining drive as hd0, regardless of what it was before.  So if I 
install grub to the second disk as hd1, then it won't boot as a single 
drive.

And to get this back to a single thread:

On 8/5/2015 1:03 PM, Chris Murphy wrote:
> On Wed, Aug 5, 2015 at 10:58 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote:
>
>> I tried 'smartctl -a' and 'hdparm -I', but I don't see anything about
>> Advanced Format.  What am I looking for?
> # smartctl -i /dev/hdg | grep -i sector
> Sector Size:      512 bytes logical/physical

I don't get a "Sector Size" line.

smartctl version 5.38 [i686-redhat-linux-gnu] Copyright (C) 2002-8 Bruce 
Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Device Model:     WDC WD10EZEX-60M2NA0
Serial Number:    WD-WCC3F6AX0119
Firmware Version: 03.01A03
User Capacity:    1,000,204,886,016 bytes
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   9
ATA Standard is:  Not recognized. Minor revision code: 0x1f
Local Time is:    Wed Aug  5 13:09:16 2015 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

-- 
Bowie