Windows 8 / Kubuntu Dual-Boot problem

[Bing_Wang]

I am trying to install Kubuntu 14.04 on a Windows 8.1 machine (HP Pavilion 500-314). The installation was fine. After that, I rebooted the computer, then I got error message "Boot device not found" error. I tried to use boot-repair to fix it. No success. Here is URL

http://paste.ubuntu.com/8807959/

Thanks in advance!

Bing

[yancek]

Your boot repair output shows an EFI partition with the expected efi files for Kubuntu but nothing for windows. Other than the efi partition, you have a swap partition and two Linux filesystems on two partitions and it looks like you installed Kubuntu on sda2 as well as sda4 as you can see from the content of the grub.cfg files for each partition. Hope you have a windows 8 installation medium. Which installation type option did you use?

[Bing_Wang]

I did install Kubuntu twice. The first one wasn't successful, I tried again. That's why I have two partitions for Linux. If I restart from windows 8, it will help?

[oldfred]

You do not have Windows. I hope that was your intent or that you made full backups before installing.

Reinstall says overwrite Ubuntu but it also erases existing Windows or any other partitions.
Sept 2014 Fix being released for one drive installs, but mulitiple drive installs must use Something Else. And fix is not in current versions.
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1265192

HP has modified UEFI to only boot Windows. So it will not boot the ubuntu entry in UEFI.

Several work arounds:

http://ubuntuforums.org/showthread.php?t=2234019

(http://ubuntuforums.org/showthread.php?t=2234019)
It seems hp firmware do not allow you to boot anything other than windows. Hence no ubuntu option in the UEFI. To work around it
http://ubuntuforums.org/showthread.php?t=2227889
1) press esc key while booting to access start up menu 2) press F9 for boot devices menu.
[SOLVED] Trying to install Ubuntu as dual boot on Windows 8.1 desktop HP500
http://ubuntuforums.org/showthread.php?t=2218154


(http://ubuntuforums.org/showthread.php?t=2234019)
HP 4545s Secure boot off, manually copy files.
http://ubuntuforums.org/showthread.php?t=2133796
HP Manually renamed files to make it work.
http://ubuntuforums.org/showthread.php?t=2131886


(http://ubuntuforums.org/showthread.php?t=2234019)