[NTLUG:Discuss] cfdisk and bootable partition flag

David Mandala davidm at them.com
Wed Jan 11 17:08:17 CST 2006


Do you have a file /boot/grub/menu.lst. If so that is the file you are 
looking for.

ntlug at levelofdetail.com wrote:
> Thanks, Patrick. Yes, that helps. I should have mentioned it is a
> standard install with Grub.
> 
> I have another machine with Ubuntu on it. It also uses Grub, standard
> install, booting one OS only. The boot partition is indicated by both
> fdisk and cfdisk. On this machine I can't find grub.conf anywhere - not
> in /etc or /boot. There is a /boot/grub directory but no conf file in
> it.
> 
> On Wed, 2006-01-11 at 13:06 -0600, Patrick R. Michaud wrote:
> 
>>On Wed, Jan 11, 2006 at 10:50:33AM -0600, ntlug at levelofdetail.com wrote:
>>
>>>I'm on a Linux-only machine using SUSE 9.2. I boot from the first of two
>>>IDE hard disks - /dev/hda.
>>>
>>>I'm not currently having a problem, but am trying to understand the boot
>>>process better. I've tried both fdisk and cfdisk and in neither one do I
>>>get an indication of which is the bootable partition on the drive. Why
>>>is this? How can I find which partition I'm booting from?
>>
>>I'm not an expert on this, but assuming you have a reasonably standard
>>Linux installation then you're probably booting into "grub" and it's 
>>installed on the drive's "Master Boot Record" (MBR), which is separate
>>from the partitions on the drive.
>>
>>If this is the case, then it's up to grub to decide which partition
>>to boot, and grub gets that information from its grub.conf file (or
>>command-line options specified when booting) and not from anything 
>>that is stored in the partition table.
>>
>>Hope this helps,
>>
>>Pm
> 
> 
> 
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David Mandala <davidm at them dot com>
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