/dev/sda1 --> /dev/hda1 ???

[Luigi]

The kernel shipped by Ubuntu is not the same as the vanilla version that you
would download from kernel.org.
That said, there are many things that might be different.

In your particular case, I think you are dealing with the now infamous
libata or whatever its name is. This is the code that's meant to replace the
now archice ide-scsi stuff for the kernel. In short, all drives are now
handled in the same way that SCSI disks are. Which is good and bad depending
on who you ask. It's definitely good for the people using SATA disks to boot
their systems. And it keeps the naming of disks somewhat uniformed. It's bad
because it breaks some older ways of thinking (old sysadmins) and systems
running XFS (filesystems) used to just die (it happened to me; see old bugs
in Malone if interested).

If 2.6.20.x works for you, congrats. However, if I were you, I'd simply
backport the audio driver that you want to 2.6.15* (or whatever kernel was
shipped with Ubuntu), than taking the route of installing a totally new
kernel.

Dealing with kernels is a Risky Business (R), especially if you care about
your system.

just my $0.02

p.s. I'm dying to start playing with 2.6.20.x myself, just because of the
KVM hypervisor support.

On 2/20/07, Michael S. Peek <peek at tiem.utk.edu> wrote:
>
> Hi Ubuntu gurus,
>
> I've just taken the plunge and compiled my own kernel -- 2.6.20.1 -- to
> reconcile a problem with buggy sound drivers.  (Now granted that the
> last time I compiled a linux kernel, it was for version 1.2.13, but I
> followed the instructions and got a pair of *.deb packages.  Kudos to
> all documentation writers out there!)  After installing said kernel, I
> found that I couldn't boot.  A little more tweaking and I found that in
> order to boot, I had to change:
>
>     root=/dev/sda1
>
> to:
>
>     root=/dev/hda1
>
> Um...  Is this bad or something?  Why does /dev/sda1 not work for my
> custom kernel when it works for the distribution kernel?  Did I set
> something wrong in my kernel config file?  (I also found that if I run
> update-grub, it wants to change it back to /dev/sda1.)
>
> Trying to understand, thanks for your help!
>
> Michael Peek
>
>
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-- 
----)(-----
Luis Mondesi
*NIX Guru

"Feliz el hombre que ha hallado sabiduria y el hombre que consigue
discernimiento, porque el tenerla como ganancia es mejor que tener la plata
como ganancia; y el tenerla como producto, [mejor] que el oro mismo" (Prov
3:13-14).

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