Re: Ubuntu 12.10 not booting
Hi, PraveenP. Did you use Startup Disk Creator to ensure making your CD/USB bootable? The image file alone can't boot your system. If you're already well aware of this, my apologies.
Re: Ubuntu 12.10 not booting
I have no experience with Secure Boot, but here's what I've gleaned from a little net searching:
Secure Boot is a feature Microsoft requires all manufactures shipping their products with Win8 to put on their machines. It's designed to prevent a modified OS from booting, but has the side effect (or intended effect?) of preventing an alternative OS from being enabled.
I believe there should be a way to disable this in your BIOS, but as I said, I'm not familiar with Secure Boot.
Unfortunately, community support for Secure Boot is still somewhat lacking, as machines shipping with Win8 are still a relatively new phenomenon.
You may want to have a gander at this thread
http://ubuntuforums.org/showthread.php?t=2081670
Re: Ubuntu 12.10 not booting
Quote:
Originally Posted by
alkh3myst
Hi, PraveenP. Did you use Startup Disk Creator to ensure making your CD/USB bootable? The image file alone can't boot your system. If you're already well aware of this, my apologies.
No, I am not. I remember old versions' images are bootable. I was able to directly reach live session from booting CD. I created my USB by UNetBootin. It is well capable of making bootable drives. I did create bootable drives for even Core plus and puppy using that software. More than that, if bios cannot find a bootable medium, it will display an error showing that. Here the error message is "Secure boot not enabled".
Quote:
Originally Posted by
newb85
I believe there should be a way to disable this in your BIOS, but as I said, I'm not familiar with Secure Boot.
Unfortunately, community support for Secure Boot is still somewhat lacking, as machines shipping with Win8 are still a relatively new phenomenon.
I think my BIOS is also not familiar with Secure Boot. And also it is not a windows 8 pc, I bought it in March, before this secure boot crap era. :(
Re: Ubuntu 12.10 not booting
Hi,
I would not be surprised if Secure Boot capable hardware was being sold before windows 8 was released.
Ubuntu 12.10 is the first Linux distribution that should install on a Secure Boot motherboard. This blog post might not make things any clearer. You should be able to install 12.10 without Secure Boot enabled.
http://web.dodds.net/~vorlon/wiki/bl..._Ubuntu_12.10/
Does the installer give you an option to use UEFI or BIOS?
Another thought has just entered my head. Perhaps this error message is nothing to do with the problem. 12.10 must check and report if Secure Boot is enabled or not. Perhaps the issue of the blank screen is to do with the video card.
You could try running the DVD with the nomodeset option selected.
Regards.
Re: Ubuntu 12.10 not booting
Quote:
Originally Posted by
grahammechanical
Another thought has just entered my head. Perhaps this error message is nothing to do with the problem. 12.10 must check and report if Secure Boot is enabled or not. Perhaps the issue of the blank screen is to do with the video card.
I think you're right. Having not yet installed 12.10, I didn't know it would report whether secure boot was enabled on the hardware.
Re: Ubuntu 12.10 not booting
Quote:
Originally Posted by
grahammechanical
Hi,
I would not be surprised if Secure Boot capable hardware was being sold before windows 8 was released.
Does the installer give you an option to use UEFI or BIOS?
It looks like my laptop machine is not Secure Boot capable. I cannot find an option to use UEFI or BIOS.
Quote:
Originally Posted by
grahammechanical
Another thought has just entered my head. Perhaps this error message is nothing to do with the problem. 12.10 must check and report if Secure Boot is enabled or not. Perhaps the issue of the blank screen is to do with the video card.
You could try running the DVD with the nomodeset option selected.
It has optimus. I tried both options "Optimus" and "UMA only". Failed.
Grub to is not loading (or not visible), so I am not able to add nomodeset there. :(
Re: Ubuntu 12.10 not booting
Press any key when you see the little man and keyboard, then press F6, and select nomodeset from the list, and continue booting.
Re: Ubuntu 12.10 not booting
It shows the earlier said message only.
Re: Ubuntu 12.10 not booting
Hey! I did boot from USB drive. Just opened the USB medium from existing installation. And edited
/boot/grub/grub.cfg
removed
Code:
if loadfont /boot/grub/font.pf2 ; then
set gfxmode=auto
insmod efi_gop
insmod efi_uga
insmod gfxterm
terminal_output gfxterm
fi
part.
From rebooting from USB medium, it simply loaded. :-) Thanks for the grub hints :guitar: