Kernel builds from linux-2.6.3-2.1.253.2.1

[Thomas Molina]

> Let me ask you a question or two. I was also trying to do a custom
> 2.6.3-2.1.253.2.1 kernel, and I was able to get it all to compile with the
> changes I made (which were a lot). But when I try to boot it I get an error
> like this:
>     VFS: Cannot open root device "LABEL=/" or unknown-block(0,0)
>     Please append a correct "root=" boot option
>     Kernel Panic: VFS: Unable to mount root fs on unknown-block(0,0)
> But the boot options are exactly the same as for every other kernel version;
> so I must have turned off something critical, I'm just not sure what. My
> root partition is on hda4, and it is ext3. Also, ever since I tried booting
> my custom kernel that first time, rhgb doesn't start for any kernel I boot,
> even though it is in all of the boot parameters. any thoughts?

That message is seen when a kernel is built with in initrd is made which 
does not include the jbd module.  Did you include jbd support as modular 
or builtin?  One way to handle this is make ext2, ext3, and jbd as 
builtin.  I personally disagree with RedHat on this issue so I go the 
other route.  I change all of my fstab entries to use device names 
(/dev/hda1) rather than symbolic names like LABEL=/.