Moving boot

[Karl Larsen]

Les Mikesell wrote:
> Karl Larsen wrote:
>
>>>> I now have the /boot part of my whole system. But it would be easy 
>>>> to make a new partition of say 100 MB the first thing on the second 
>>>> hard drive. My question is what do I need to do so the new /boot 
>>>> works?
>>>>     
>>>
>>> I did something similar with a dual-boot system:  Windows on the
>>> original first drive, all by itself.  And Linux installed on an added
>>> second drive, all by itself.
>>>
>>> While setting up GRUB, you define its root (where /boot/ is) with a
>>> "root (hd1,0)", then "setup (hd0)" which puts the bootloader onto the
>>> first drive MBR, and quit out of the GRUB shell.
>>>
>>> [root at bigblack ~]# grub
>>> grub> root (hd1,0)
>>> grub> setup (hd0)
>>> grub> quit
>>> [root at bigblack ~]#
>>>
>>> In this scenario, the computer boots, reads the MBR on my first drive,
>>> which starts off GRUB from my second drive.
>>>
>>> I believe that you can even set that up from within the GRUB start up
>>> screen.  Just hit the right hot key to get into the command line.  You
>>> can also do it from the rescue disc, so you can get a system working
>>> that's not currently booting.
>>>
>>>   
>>    I know Tim and that is what I use now that works. I have grub at 
>> (hd0) and the Linux is at (hd1,5). This works fine so why move /boot?
>>
>>    I am certain that (hd1,5) is about 100 GB up from start of the 
>> second drive. And it works.
>
> I thought this whole thread was about this setup not working all the 
> time.  What does fdisk -l say about the cylinder range of that 5th 
> partition?
>
    Well it is the sixth partition. This is (hd1,5) in grub talk :-)


Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        1217     9775521   83  Linux
/dev/sdb2            1218        1945     5847660   83  Linux
/dev/sdb3            1946        1961      128520   82  Linux swap / Solaris
/dev/sdb4            1962       18534   133122622+   5  Extended
/dev/sdb5            1962        7060    40957686   83  Linux
/dev/sdb6            7061       12159    40957686   83  Linux
/dev/sdb7           12160       18534    51207156   83  Linux
[root at k5di ~]#

Now you can see sdb6 starts at cylinder 7061 which the hell and gone 
above 1100 :-(


So thanks for the idea for quantizing the fact. I think it's clear my 
1994 BIOS works far better than the so-called standard. 8-)



-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.