[Grml] grml-debootstrap: troubles with debian keyring

[Michael Gissing]

Hi list!

It happened that I had to install debian squeeze with an old (~1 year) 
version of grml. When running grml-debootstrap it exited with an error, 
saying something like
"E: Release signed by unknown key (key id AE...)"

The solution was to update Debian keyring.

apt-get update
apt-get install debian-archive-keyring

At the first moment I had no clue how to solve the issue. So it would be 
nice if grml-debootstrap recognizes this error and gives the user a hint 
on how to fix it.

Besides that everything ran fine ;-)

greetz, Michael