GRUB

[Mikkel L. Ellertson]

Les Mikesell wrote:
> Timothy Murphy wrote:
>> Karl Larsen wrote:
>>
>>>>>     I got interested in an old thing I thought might still work. This
>>>>> you can do from a rescue disk that goes into grub, which is all the
>>>>> Fedora ones for some time. I wanted to type this in the grub and 
>>>>> see if
>>>>> it works:
>>>>>
>>>>>
>>>>> grub> root (hd1,4)
>>>>> grub> kernel /vmlinuz-2.6.23.14-107.fc8 ro root=LABEL=/
>>>>> grub> boot
>>>>>     
>>>> Don't you need initrd ?
>>>>
>>>>   
>>>     Well it came back and told me what kernel it found and I thought it
>>> was happy so I did boot, but it didn't.
>>>
>>>     My problem about grub is there are a lot of changes from just 3
>>> years ago.
>>
>> I agree with you that grub documentation leaves something to be desired.
>>
>> However, I would have to add that I am amazed that you have not noticed
>> in your reading about grub
>> that you normally need an initrd as well as a kernel to start a Linux 
>> system.
> 
> I think it is only absolutely required if the device drivers needed to 
> access the root filesystem must be loaded as modules.
> 
 From the kernel name, it looks like he is using a Fedora kernel, 
and not one he compiled himself. So he is going to need an initrd. 
The drivers he needs are not going to be compiled in.

Grub only briefly covers using an initrd in the OS specific section 
covering Linux. This is understandable, because it is a general 
purpose boot loader. You are expected to go to the kernel 
documentation to find out when/why you need an initrd.

Mikkel
-- 

   Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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