I used a WSL2 with Docker-desktop.
I type a command as follows:
$ docker build -t fromtest:0.0 .
The Dockerfile is simple
RUN chmod 644 /etc/hosts
Then, the error message is
chmod:changing permission of ‘/etc/hosts’ : Read-only file system.
In Virtual Box, however, the build oeration with same Dockerfile is successful.
So I think this problem only appears in WSL.
What should I do to succeed in build?