thanks for replying. but the files needed to boot i.e stage1, stage2,
initram disk image and kernel are present in boot partition, right?
and /boot  can be on different hard disk partition too, right?

are you referring to /sbin/init or /etc/syconfig/init files that reside in
/ partition ?

if i remove the root=  ,.. parameter, the system will try to boot to some
extent , right?


On Wed, Jul 18, 2012 at 7:41 PM, Mark Stodola <[log in to unmask]> wrote:

> On 07/18/2012 08:37 AM, anuraag chowdhry wrote:
>
>> Hi all,
>>
>> in the following print from grub.conf:
>>
>> title Scientific Linux (2.6.32-131.0.15.el6.i686)
>>      root (hd0,0)
>>      kernel /vmlinuz-2.6.32-131.0.15.el6.**i686 ro
>> root=UUID=8ea0b46d-4a99-4e10
>> -a40b-6c265ae4a09e
>>
>> what is the above root= line indicating and what is the significance of
>> this in the booting process.
>> I understand that it might point the label or uuid of the root partition
>> location but what is the significance of this in booting process.?
>>
>> Br//\c
>>
>
> It is specifying where the / partition is (that contains /etc, /bin, etc).
>  Without it, it would not know which partition to mount first and look for
> the files needed to boot and mount the rest of the filesystems.
>
> -Mark
>
> --
> Mr. Mark V. Stodola
> Senior Control Systems Engineer
>
> National Electrostatics Corp.
> P.O. Box 620310
> Middleton, WI 53562-0310 USA
> Phone: (608) 831-7600
> Fax: (608) 831-9591
>