Beaver OS

It's an OS! The only official way to refer to this project is 'Beaver OS'.

Building

To build Beaver OS, you should install two cross-compilers: i686-elf and x86_64-elf.

Installing cross-compilers

If you are a Gentoo user, you can just install sys-devel/crossdev and it will do the work for you:

crossdev --stage1 -t i686-elf
crossdev --stage1 -t x86_64-elf

Otherwise, you should do it manually:

• Download [binutils] (ftp://ftp.gnu.org/gnu/binutils/) and [gcc] (ftp://ftp.gnu.org/gnu/gcc/)
• Build binutils for i686:

mkdir build-i686
cd build-i686
../confgure \
    --prefix=/opt/cross \
    --target=i686 \
    --disable-nls \
    --disable-werror \
make
make install

• Build binutils for x86_64:

mkdir build-x86_64
cd build-x86_64
../confgure \
    --prefix=/opt/cross \
    --target=x86_64
    --disable-nls \
    --disable-werror \
make
make install

• Download gcc's prerequesties:

./contrib/download_prerequisites

• Build gcc for i686:

mkdir build-i686
cd build-i686
../confgure \
    --prefix=/opt/cross \
    --target=i686 \
    --disable-nls \
    --enable-languages=c,c++ \
    --without-headers
make
make install

• Build gcc for x86_64:

mkdir build-x86_64
cd build-x86_64
../confgure \
    --prefix=/opt/cross \
    --target=i686 \
    --disable-nls \
    --enable-languages=c,c++ \
    --without-headers
make
make install

• Set PATH:

export PATH=/opt/cross/bin:$PATH

Building

Just run make. It will produce beaveros.iso.

Using

To use Beaver OS, boot beaveros.iso as a Live CD/USB image. If you have QEMU, you can just run make run.

Debugging

If you have QEMU, you can just run make run-debug.