Show OK / FAILED boot messages on Debian

During my boot on Debian Jessie, I have a message beginning with "[FAILED]" in red color, but it's going too fast and I don't have the time to read what's after...

How can I display those colored messages during boot?

  • journalctl -b won't show them,
  • Tried to install bootlogd as suggested but it doesn't seem to work on recent debian installs, replaced by journalctl.

Solution 1:

Adding as an answer just because it was simple & worked ;)

Quick & dirty method, film it with your phone.