Grub Install on existing Partitioned Harddrive

[Sebastian H. Schmidt]

Hi William,

thx for your answer, the problem is that the grub loader is installed 
but is not loaded, i guess because it is installed onto the MBR of the 
5. Partition (my /boot partition) so i guess i have to manage to get it 
installed onto my fourth partition (WINXP) doesnt i ?

thx

Sebastian


William Estrada wrote:
> Sebastian,
> 
>  If you already have Grub installed then you don't need to reinstall it
> again. Just update your grub.conf or menu.list. The update should point 
> to your external disk.
> 
> This may help you: http://64.124.13.3/hacks/USB_Boot_using_GRUB.html
> There are some other links at the bottom of the page.
> 
>> Message: 10
>> Date: Sun, 20 Jan 2008 11:28:30 +0000
>> From: "Sebastian H. Schmidt" <sebastian.h.schmidt at gmx.de>
>> Subject: Grub Install on existing Partitioned Harddrive
>> To: fedora-list at redhat.com
>> Message-ID: <4793305E.8050902 at gmx.de>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Hello,
>>
>> I want to install FC 8 on my Macbook Pro (SantaRosa) which is already 
>> partitioned, and i`m not able to change it. Currently the existing 
>> Partition Table Looks like this
>>
>> [EFI][MAC-OS]{Free128MB}[MAC-Data]{Free128MB}[WINXP]
>>
>> Since there is not enough space left on the harddrive i have to 
>> install the Linux on a external drive, but thx to Apple it could not 
>> boot completely  from my external HD, so i had to put my /boot 
>> partition in one of the Free 128 MB blocks. .. and thats where it gets 
>> messy.
>> Since this new Partition is not one of the first Four FC6/CentOS are 
>> telling me that this installation is not possible. So 2 Weeks ago i 
>> installed Ubuntu and it worked fine, i think because it installed the 
>> GRUB bootloader into the MBR of the Windows Partition (because it 
>> appears when i wanted to start it).
>> Now i have to install  FC8x64 and doing that  from the Live CD It 
>> creates all the directories and necessary  filemounts, but it seems 
>> that it installed the bootloader somwhere it does not get recognised. 
>> And now to the question, how do i install the the bootloader into the 
>> MBR of the Windowspartition but refering to the grub files in the 
>> /boot partition. Is this possible, does this might work ? ... if so .. 
>> how.
>> I had a look at the grub installation page but it is not clear for me 
>> how this might work without crashing the whole machine.
>>
>>
>> grub-install --root-directory=/boot /dev/hda
>>
>> does [--root-directory=/boot] means "you find your grub data in /boot" ?
>> does [/dev/hda] means "install the bootloader to /dev/hda" ?
>> does it might work if i use
>> grub-install --root-directory=/boot /dev/sda4 ?
>> because the windows partition is sda4 and i want the bootloader 
>> installed there ?
>>
>>
>> thx very,very much for your help.
>>
>>
>> Sebastian
>