Re: GRUB location on Dual-Boot with TWO hard drives
On Sat, Oct 13, 2012 at 12:48 PM, Brian <ad44@cityscape.co.uk> wrote:
> On Sat 13 Oct 2012 at 12:15:25 -0400, Wally Lepore wrote:
>
>> I only have one shot to get this right or else I have to scrub the
>> install and start over.
>
> Please, no! No more installing from you. We are exhausted. :)
I know but its frustrating on this end. Just tryin' to do the right
thing. Thanks for staying the course with me Brian. ;-)
>> Here is what the new screen is asking:
>>
>> ***** BEGIN *****
>> You need to make the newly installed system bootable, by installing
>> the GRUB boot loader on a bootable device.
>>
>> The usual way to do this is to install GRUB on the master boot record
>> of your first hard drive.
>
> You do not want this.
I totally understand Brian. Thank you for the kindly reminder.
>> If you prefer, you can install GRUB elsewhere on the drive, or to
>> another drive, or even to a floppy.
Done. installed to /dev/sdb as per your advice.
> You are going to take the 'other drive' route.
>
>> The device can be specified using GRUB's "(hdn,m)" notation, or as a
>> device in /dev. Below are some examples:
>
> It doesn't matter whether you use GRUB's notation or the device way.
OK
>> I only have one shot at getting this correct. My 2nd hard drive (that
>> contains Debian) is installed on /dev/sdb and the first partition on
>> that drive is /boot .
>>
>> My Debian hard drive (sdb) is partitioned in the following order:
>>
>> /boot
>> Swap
>> /
>> /var
>> /usr
>> /temp
>> /home
>>
>> Should I simply type hd1,1 OR /dev/sdb in the above box and
>> that should install GRUB to the first /boot partition on the 2nd
>> drive? I want to be sure GRUB gets installed into that first partition
>> (/boot) on drive /dev/sdb. hd,1,1 seems more accurate than /dev/sdb.
>
> Type '/dev/sdb'. Without the quotes. Here is what roughly happens:
>
> Some of GRUB goes in to the MBR.
>
> Some of GRUB is put after the MBR but before the partitions. This is
> known as the embedding area.
>
> GRUB writes a load of files (including grub.cfg) to /boot/grub. It is of
> no importance or concern that /boot is on a separate partition because
> GRUB will find it.
That was amazing! I did not know there was a difference between the
two. Excellent advice. thank you
>> After installation is complete, I will go into my BIOS and change the
>> first boot device to "sdb" (or as BIOS calls it HDD1). I tested this
>> BIOS adjustment a few days ago and the procedure worked fine using two
>> other drives as a test.
>
> We await your announcement of 'success'.
Done. Installed successfully!
> P.S. It is (hd1,1). You really do not want to do put GRUB there. It is
> not the same as /dev/sdb. Honest.
I adhered to your advice and install into /dev/sdb.
Thank you Brian
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