Search this blog

Saturday, December 19, 2015

installation of linux goes smoothly on hp pavilion but boot manager won't start?

A funny little thing happened 
on my HP Pavilion TS 14 Notebook ...

I have windows 10 installed
(as an upgrade for the windows 8.1 the laptop came with)
and i am slowly, but steadily learning to really dislike windows 10.

It reached enough height today that i decided to install a dual-boot linux mint... for sanity's sake...

It has been a relatively long while since i installed dual-boot machines on a regular basis. 
the last time was when i installed ubuntu, as dual-boot to the windows 10 release candidate (when i realized the rtc was really far from being ready for work... )

Linux mint's installation worked as smoothly as one can ask for
but afterwards, the dual boot did not work .

It was maddenning because everything seemed to be ok, and yet, for some reason, all i could see was windows boot-manager, or the laptop's uefi os-selector. 

I took quite some time (and some rather unnecessary apt-get of the grub-efi-amd64  package and playing around with the efi boot manager) before i took a long hard look at the bios setup, and discovered/recalled that in the past, to install ubuntu as an alternative to the windows 8.1, I enabled the legacy support. 

So, a new lesson: if legacy support is on, both windows 10 and mint 17 will tell you everything is ok, but when time comes for boot time, your grub won't work. 

After - 

  1. disabling the legacy support on the efi-bios, 
  2. booting into linux mint and executing grub-install 
Everything was ok.

Now the computer starts-up into the grub boot menu, 
and all options from that menu - linux and windows,
work as they should. 

Further reading 
a good guide for efi/uefi which inspired me to take another look at that bios/efi configuration 

No comments:

Post a Comment