[mythtv-users] getting to the GRUB in time...

[Simon Hobson]

John Marshall <mythtv at marshallparty.org> wrote:

> It happens right after BIOS finishes initializing.  Yours may be
> configured to be hidden, so it would be hidden behind a black screen. If so, hold shift while booting to make it show.  You may also want to edit the grub config to increase the timeout or always show it (not hidden).  This page details some of the options.  Remember you have to run sudo update-grub to make the configuration changes take effect.

As a quick hack to get into it at boot time, you could boot from a live CD/USB stick, mount the boot partition (or root if there isn't a separate boot), and edit /boot/grub/grub.cfg directly. Once booted, edit /etc/default/grub and run update-grub to make it permanent.