[ubuntu-uk] Still having problems with recovery......

[Matthew Bassett]

On 11 June 2010 01:36, jakewc2 <jakewc2 at sky.com> wrote:
> Ok, I cant sleep, and have found that file you wanted,
>  http://pastebin.ubuntu-uk.org/66604
> Hope that helps.
> John

OK: Comparing the normal boot to the recovery it looks like they are
both the same.

I'm wondering if the issue could be the "vga=791" option? There might
be an issue with the kernel framebuffer; you might not notice this on
a normal boot up since an X-server starts anyway and takes over the
display (so the recovery kernel might have booted ok, other than the
fact it might not be able to display anything)

You can check this in a non-permanent way by selecting a recovery
kernel from the grub boot menu, hitting the 'e' key to temporarily
edit the boot options and deleting the "vga=791" option, and for good
measure add a "nofb" option. Press enter to commit those options, and
then 'b' to boot.

If the above works, you might want to try without adding the "nofb" option.

For reference: "vga=791" option selects a 16bit color, 1024x768 pixels
frame buffer; "nofb" option explicitly disables the frame buffer.

References:
https://wiki.ubuntu.com/FrameBuffer (but note that this deals with
using an older version of grub, so the directions for editting the
grub configuration are not correct for the version installed
currently)

Assuming this fixes your issue, then I _think_ the place to make these
changes permanent is the file /etc/default/grub; remove text of the
form "vga=791", and then run the command "sudo update-grub" to
regenerate the grub configuration (sorry, I am not so familiar with
the new version of grub so someone else might have to step in if I
have this bit wrong).

Let us know how you get on.