/bin/bash -> /bin/sh
Some times ago I had a bad experience with the libreadline package.
The installation failed because a required package wasn't installed. That's
ok, but the libreadline package had already replaced my bash with another
one which wasn't working anymore. The bash couldn't be executed because
the dynamically linked libreadline wasn't installed.
Since I wasn't able to login anymore, I booted the system with a boot disk
and replaced the symbolic link bash -> sh with tcsh -> sh. It was still not
possible to boot because at least one important startup script (rcS)
contained #!/bin/bash instead of #!/bin/sh (I realized this later after
installing a new base package and hours of work).
I reported the problem with libreadline to the package maintainer (and the bug
list) without getting a response.
I would really aprecciate if the debian base system uses in all important
system scripts /bin/sh. It would be also safer to use for sh not a symbolic
link to bash but instead to ash or another bourne compatible shell to avoid
problems if the bash is broken.
-Werner
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