How can I customize bashrc, bash_profile or profile on a CoreOS installation?

Question

I fully realize that CoreOS is meant to be mostly immutable so that nothing is installed in the userspace. And for 99% of the use-cases I agree. I'm using CoreOS/toolbox when I need to get some actual work done but I also need to slightly update the user environment so that I can properly Docker-ify my development environment.

Answer 1

The .bashrc is a symlink to a read-only file. All you need to do is:

cd $HOME
rm .bashrc
cp /usr/share/skel/.bashrc .

Hope that helps.