[CentOS] Re: Please help! boot problem

[Mace Eliason]

Scott Silva wrote:
> Mace Eliason spake the following on 5/1/2006 12:29 PM:
>   
>> Scott Silva wrote:
>>     
>>> Mace Eliason spake the following on 5/1/2006 12:13 PM:
>>>  
>>>       
>>>> So from what I have read I would run grub-install /dev/sda ?
>>>>
>>>> I have setup the raid with
>>>> /boot (100Meg)
>>>> /swap (2gig)
>>>> / (the rest)
>>>>
>>>> All 3 are mirrored.
>>>>
>>>> I don't want to mess this up sorry I am new to this.
>>>>
>>>> Mace
>>>>
>>>> Scott Silva wrote:
>>>>    
>>>>         
>>>>> Mace Eliason spake the following on 5/1/2006 10:58 AM:
>>>>>  
>>>>>      
>>>>>           
>>>>>> Hi,
>>>>>>
>>>>>> I have a setup with raid 1 and one drive has failed, and the other
>>>>>> drive
>>>>>> won't boot says missing os.
>>>>>>
>>>>>> I thought I had it setup and tested but it would appear that it wasn't
>>>>>> setup to boot form either drive.
>>>>>>
>>>>>> How can I boot from the good drive that is missing the grub.
>>>>>>
>>>>>> I am thinking of using linux rescue when booting from the centos 4.2
>>>>>> disc
>>>>>>
>>>>>> This is a production machine and I don't want to mess it up.
>>>>>>
>>>>>> Please help
>>>>>>             
>>>>>>             
>>>>> Use linux rescue and you can fix grub.
>>>>> http://www.gnu.org/software/grub/manual/html_node/Invoking-grub-install.html
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>  
>>>>>       
>>>>>           
>>> less /boot/grub/grub.conf and post please-- just to be careful.
>>>
>>> Okay I have booted with linux rescue and skiped the network setup, and
>>> skiped the next part and gone right to the shell.
>>>   
>>>       
>> If I type grub-install it says no such file or directory.
>>
>> I tried less /boot/grub/grub.conf same thing.
>>
>> I did boot with the centos cd as if I was installing and used manual
>> partion to see if the partions where still there and they are.
>>
>> No sure what to do now.  I will try and search for  grub-install.  I am
>> assuming that I am searching the cd?
>>
>> Mace
>>     
> You can't skip the part about mounting your existing system. You will need to
> do that, and after it mounts, run chroot /mnt/sysconfig.
> That should make all the commands run on YOUR files instead of the bootdisks
> running system.
>
>   
Okay I didn't skip this time and it did a search and says "You don't 
have any Linux partitions. Press return to get a shell. The system will 
reboot automatically when you exit from the shell."

What the?

If I goto the shell and run fsdisk /dev/sda it shows I have 3 partitions 
with /boot set for booting.

I do get that?