Re: [gentoo-user] Gentoo grub question?

[Peter Eis]

Joshua Banks wrote:

Thanks for the reply Peter,

I'm follow the directions off there Install x86 doc. I trust you, don't get me wrong but that
would be pretty messed up I would think.
 

I'm not a grub expert either so maybe you should wait for other advices 
before messing things up.
But as long as you don't mess up your partitions you should always be 
able to boot again from the install cd, mount the linux partitions and 
fix wrong setting in grub (I had to do this several times before 
everything worked well).

Here's there example: (Is my grub different because I used genkernel to compile the 
kernel, I
wonder)
Now, create the grub.conf file (nano -w /boot/grub/grub.conf) and add the following to it: 

Code listing 23.4: grub.conf for GRUB

default 0
timeout 30
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
# If you compiled your own kernel, use something like this:
title=My example Gentoo Linux
root (hd0,0) 
kernel (hd0,0)/boot/bzImage root=/dev/hda3 

# If you're using genkernel, use something like this instead:
title=My example Gentoo Linux (genkernel)
root (hd0,0)
kernel (hd0,0)/boot/kernel-KV root=/dev/hda3
initrd (hd0,0)/boot/initrd-KV
# Below needed only for people who dual-boot
title=Windows XP
root (hd0,5) 
chainloader (hd0,5)+1

Warning: Substitute KV with the kernel version you have installed. 

Does this make sense Peter? Is there install guide messed up?
 

It just depends on you disk layout. If you do have a boot partition (as 
recommended in the install docs) then you must not have the /boot in the 
path to the kernel as there is no such dir on this partition (someone 
please correct me if I'm wrong)
If you installed everything on one partition only then the example 
config is ok.
I would put two entries for gentoo in the grub.conf:

default=0
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
title=My example Gentoo Linux (genkernel with /boot) 
root (hd0,0)
kernel (hd0,0)/boot/kernel-KV root=/dev/hda3
initrd (hd0,0)/boot/initrd-KV

title=My example Gentoo Linux (genkernel without /boot) 
root (hd0,0)
kernel (hd0,0)/kernel-KV root=/dev/hda3
initrd (hd0,0)/initrd-KV

# Below needed only for people who dual-boot
title=Windows XP
root (hd0,5) 
chainloader (hd0,5)+1

Of course you still need to change 'KV' with the correct values for your 
kernel (something like 2.4.20-gentoo-r5) and to check if the partition 
number for the XP entry is ok.

Cheers,
Peter
Thanks,
JBanks






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