Ubuntu and most other Linux distributions now use the GRUB2 boot loader. You can change its settings to select a default operating system, set a background image, and choose how long GRUB counts ...

Jack Wallen shows you how easy it is to repair the GRUB2 boot loader in Linux.

'BootHole' attack impacts Windows and Linux systems using GRUB2 and Secure Boot Microsoft, Red Hat, Canonical, SuSE, Oracle, VMWare, Citrix, and many OEMs are expected to release BootHole patches.

Fortunately, Linux distro developers were warned of this problem, and most of them have already issued patches. Besides, to use BootHole, a hacker has to edit grub.cfg, the GRUB2 configuration file.

I've since re-run grub2-install and grub2-mkconfig (from a liveCD, but chrooted properly, I'm 99% sure), rebuilt the kernel, rebuilt the modules, and rebuilt the video drivers (since the Internet ...