[mdlug] Ubuntu 12.4 on Lenovo laptop would not boot up after software update

[R KANNAN]

I struck a mythbuntu 11.04 install CD and tried to boot from there but it
seems to have booted from 12.04 on hard disk.
 (I probably need to check the boot sequence on the bios)

The kernel seems to have been upgraded from 3.2.0-25 to 3.2.0-26 in this
software update. I also see that /boot/grub/grub.cfg has been modified by
my latest update as well.

For now the system seems to be up and running. Don't know what caused it to
choke after the update.

Thanks for your help.


On Sun, Jul 8, 2012 at 5:30 PM, Michael Mikowski <z_mikowski at yahoo.com>wrote:

> Hi:  This is probably remedial, but just in case, here is some thoughts...
>
> Have you played with boot options?  The most common one I've used over the
> years is acpi=off, IIRC.  See here:
>
> http://ubuntuforums.org/showthread.php?t=1323023
>
>
> You should be able to boot with your custom options to see if it works and
> adjust the defaults later.
>
> I had similar issues once, and after fixing the boot flag, I was still
> unable to get a GUI as the initrd.img for the new image hadn't been update.
>  The solution was to boot into text recovery and do a sudo dpkg --configure
> -a.
>
> I hope that helps!
>
>
> ________________________________
>  From: R KANNAN <rk111810 at gmail.com>
> To: MDLUG's Main discussion list <mdlug at mdlug.org>
> Sent: Sunday, July 8, 2012 1:18 PM
> Subject: [mdlug] Ubuntu 12.4 on Lenovo laptop would not boot up after
> software update
>
> Hello,
>
> I have Ubuntu 12.4 (originally Mythbuntu 11.4 upgraded to 11.11 and
> 12.4) on an old Lonovo R61 laptopwhich has been running fine (albeit a
> little slow) for some time.
>
> Today I did a suggested software upgrade and it does not boot since
> the upgrade. It goes through the grub  menu and after I hit <enter>
> the screen goes blank. I tried 'Previous Linux versions' to choose
> earlier kernels but they all seem to work. I also tried to get to
> consoles but <Ctrl-Alt><F1>... <F6> does not bring up any login
> prompt.
>
> I ran the memtest and it seems to run fine as well.
>
> Any ideas?
>
> Thanks
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