[mythtv-users] (OT) Diskless front end no longer boots.

[clemens at dwf.com]

> You mentioned that you upgraded FC6 which may have
> resulted in an update to the kernel.  "File not found"
> could come about because it cannot find the vmlinuz
> for the old kernel.  Since preparing a diskless kernel
> for FC6 (and more recently CentOS 5) that actually
> worked, I explicitly excluded kernel updates from my
> yum configuration to avoid exactly this problem.  I
> had to heavily hack the "disklessrc" thing, put the
> mount.nfs binary in the RAMdisk, put a correct
> /dev/console in the RAMdisk, and so on, to get it to
> work, so I have stayed very far from kernel updates
> since then...

NO, NO, its been running FC6 from the start.
> 
> Until you can go through and "do it the right way" if
> that is needed, start by looking wherever your kernel
> images are (under tftpboot) and see if the path to the
> kernel file specified in the PXE configuration file
> ("default" probably) refers to a file that is actually
> there.  I am not sure if the updater is "smart" enough
> to go in and try to update the "diskless" kernels or
> the PXE configuration, but if all you did between
> "working" and "not working" is the OS upgrade on your
> diskless front end, this could be the case.
> 
> Hopefully the installer did not remove the old kernel,
> which it should not have because kernels install as
> opposed to "upgrade" so /lib/modules/`uname -r` should
> still be there in your NFS image.  So once you can
> boot the kernel and mount the root file system then
> hopefully the system will come up and work.
>
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> 
As I said, everything looks untouched under /tftpboot, which is
where the booted kernel lives.

-- 
                                        Reg.Clemens
                                        reg at dwf.com