I decided that I want to learn more about Linux and try building LFS. I'm using Ubuntu 11.04 as host system and Ubuntu uses dash and mawk by default. I've changed mawk to gawk, but considering that mawk is much faster than gawk I'm thinking that I might want to use mawk anyway.
Since making bash the default shell will have a negative effect on the system's performance, especially boot times I'm hesitant to make the change.
In the LFS book you can read the following:
Symlinks that point to other software (such as dash, mawk, etc.) may work, but are not tested or supported by the LFS development team, and may require either deviation from the instructions or additional patches to some packages.
So I'm basically on my own if something fails, but it might work. So I was hoping that someone with more experience could tell me if it will work and if not what would be required to make it work?