UEFI - only boots into Windows

[zengeos]

Yes, this is a new Windows 8 Lenovo laptop. I installed Ubuntu 12.10 and decided to try out E17. Ubuntu got hosed, apparently, so I tried reinstalling it. That's where the boot problem started. I will try reading through the two links you provided above, to hopefully educate myself a bit more on things. Thanks for your help and advice once again.

[zengeos]

Is this the new secure boot that only lets you boot Windows?

You can either turn off secure boot, and maybe some other settings in UEFI. Or install the very new grub2 2.00that supposedly works with secure boot.

Secure Boot
http://web.dodds.net/~vorlon/wiki/bl..._Ubuntu_12.10/
http://www.linuxfoundation.org/publi...open-platforms

Thanks for the links, etc. Found step by step to access UEFI and BIOS and disabled Secure boot

Lots extraneous Grub entries, but I wil work on those eventually.

[oldfred]

If your chain load entries are in 40_custom or 25_custom, you can turn off os-prober. If you need it again you then can turn it back on with false or re-enable execution bit.

In /etc/default/grub I added this:
gksudo gedit /etc/default/grub
GRUB_DISABLE_OS_PROBER=true
or turn off executeable bit
sudo chmod a-x /etc/grub.d/30_os-prober

I always include a copy of my 40_custom in my backups. I just copy it into /home so when I backup /home it is included.