[lug] problem compiling Ubuntu kernel

[bgiles]

bgiles wrote:
> David L. Anselmi wrote:
>> The same way you compile a kernel on it.  Boot something else and 
>> chroot into your drive.
>>
>> I don't know how close the running kernel has to be to the one you 
>> want an initramfs for, they might have to be the same architecture.
>>
>> It's a pity the upgrade didn't leave your old kernel and initramfs 
>> around.
>>
>> Dave
>>   
> I've figured out the biggest problem - the grub loader is insisting 
> that the root partition is /dev/hda3 (which it was under older 
> kernels), but the new kernel insists it's /dev/sda3.  Every update has 
> been pointing the new kernel to the wrong place.  It can't be pulling 
> the information from /etc/fstab or the rescue disc since both say it's 
> /dev/sda3.
>
> A related issue is the 'rescue' partition was the old swap location, 
> /dev/hda2, instead of the new swap location, /dev/sda2.
>
> The third problem is that the startup process isn't finding the lvm 
> device so I can manually tweak the menu.lst file to the system will 
> reboot (until the next time I update the kernel) but something is 
> still not quite right.  I can mount the partitions manually once I go 
> into maintenance mode so it's not a case of a missing kernel module.
>
> Bear
The problem with LVM is getting kinda weird.  The 'device mapper' is 
visible in /proc/misc and 'lvscan' sees the volumes, but there's no 
/dev/vg00 directory.  Running dmsetup mknodes didn't have an effect.

Bear