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Re: 2.6 kernel upgrade gives garbled video (w/o X11)

On Fri, Jun 22, 2007 at 06:12:42PM -0000, amhoov@gmail.com wrote:
> Hi all,
> I recently attempted to upgrade my kernel from 2.4.27 to 2.6.18 on my
> Sarge installation. First off, I had to change my sources.list to use
> the Etch packages because of a dependency loop involving libc6.

what was the problem? there are 2.6 series kernel in sarge (2.6.8 I
think). You should be able to just do it without messing with Etch
packages. and since you've started... you may need to finish moving up
to Etch.

> However, I did the kernel installation w/ "apt-get install kernel-
> image-2.6-686" and the installation completed successfully w/ my Grub
> configurations updated automatically.
> When I restarted the machine and selected the 2.6 kernel, the boot
> process proceeded fine (and I could read all the text scrolling by).
> But when it came time to display the login prompt (terminal only, it's
> a server, so there's no X11) the screen got all garbled. Essentially
> all I can see is flickering black and white boxes covering the screen.
> However, I can login and reboot the machine - I just can't see what
> I'm typing.
> Anyone have any suggestions on this one? I tried installing the kernel-
> image-2.6-386 on a lark, but I still ran into the same problem. I'm
> not passing any special kernel parameters on boot to the 2.4 kernel
> either. What am I missing?

I think there is some new console-font stuff happening. You can see it
with a successful post-sarge boot .. the screen flickers while it sets
up the consoles. Have you tried booting single-user mode? 


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