Re: [gentoo-embedded] x86 Howto

[Kurt Kiefer <kekiefer@umail.ucsb.edu>]

>> nano -w /embedded_rootfs/boot/grub/grub.conf
>>   /*
>>   default 0
>>   timeout 10
>>   splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>>
>>   title=Linux 2.6.x
>>   root (hd0,0)
>>   kernel /vmlinuz-2.6.x root=/dev/hda1 vga=792
>>   */
> the latter should be
>   kernel /boot/vmlinuz-2.6.x root=/dev/hda1 vga=792

I didn't follow Heath's HowTo exactly, and my setup is probably a bit  
different, but I just want to get this out in the open to make sure  
everything is clear.
- If you mount /dev/hda1 at /boot (as in the big Gentoo manual) and  
then put your kernel here, root (hd0,0) and kernel /vmlinuz-2.6.x are  
correct, but it should have been root=/dev/hda3.
- It seems in the howto, /boot is on /dev/hda2 of the flash  
installation, so (hd0,1) and /vmlinuz would be correct (the first  
drive's second partition). Root=/dev/hda1 is ok that that case if  
that's where your filesystem is.
- Now, if the kernel is in the directory /boot of /dev/hda1 and the  
root file system is also /dev/hda1, Pierre's above solution is correct.
Basically, though, a bootloader knows nothing of your local mount  
points.

As for your problem, Pierre, check that you're getting your paths to  
your init right and don't forget to think about what grub sees. In  
this grub conf, the kernel is on /dev/hda1 and the root filesystem is  
on /dev/hda3. This also runs pre-init (part of the filesystem on /dev/ 
hda3) instead of init:

title=Linux 2.6.x
root (hd0,0)
kernel /vmlinuz-2.6.x root=/dev/hda3 init=/sbin/pre-init


Kurt


PS: I apologize if I broke threads in your mailreaders, but I just  
signed up for the list after reading some archives online and had to  
copy and paste into my reply.
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