Comment 558 for bug 1734147

> #556
? Please explain how to fix it is i cant boot to ubuntu only access to live without previous OS

It sounds like you have the same issue as me (only boot from Live USB), but you don't have an (inaccessible) installation of Ubuntu on the laptop's HDD? Do you have access to another computer where you could do an installation to the laptop's HDD or another USB stick perhaps? It's pretty straight forward (though I always end up breaking the other computers grub, but you can fix that with 'update-grub'). Once you have the bootable Live USB and another device (HDD/USB) accessible from the laptop with the full installation, you should then be able to follow the instructions in my post, #554 (use the Live USB's grub terminal to select and boot from an installation drive and update the kernel there).