Log for changing from  bash to dash.

In Dell Inpiron 4400 with Debian sid:

+ apt-get install dash (wasn't installed by default)
+ dpkg-divert --add /bin/sh (1)
+ mv /bin/sh /bin/sh_old (move /bin/sh pointing to bash to another name).
+ cd /bin; ln -s dash sh (create symbolic link /bin/sh pointing to dash).

RESTART
BOOTCHART OBTAINED

+ dpkg-divert --remove /bin/sh (to put the /bin/sh symlink back uder dpkg control)

1. /usr/share/doc/bash/README.Debian.gz