The project is a simple operating system kernel implementation in the Rust programming language, focused on working with a VGA text interface.
- hello – prints HELLO!
- time – displays the system time.
- time_set – sets the system time (example: time_set 12:00:00).
- reboot – restarts the system.
- shutdown – turns off the system.
- clear – clears the terminal.
new:
- date - displays the system date.
- date_set - sets the system date (example: date_set 01.01.2000).
- Added heap support (alloc).
- Added GPIO support for RPI4.
- Added bar panel.
- Added syscall.
sudo apt update
sudo apt install -y qemu qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils virt-manager
install Rust
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
install bootimage
cargo install bootimage
build kernel
cd my_kernel
cargo bootimage
qemu-system-x86_64 -drive format=raw,file=target/x86_64-blog_os/debug/bootimage-my_kernel.bin
dd if=/dev/zero of=disk.img bs=1M count=5120
sudo parted disk.img mklabel msdos
sudo parted disk.img mkpart primary 1M 100%
sudo parted disk.img unit B print
LOOP_DEV=$(losetup --find --show --offset 1048576 disk.img)
sudo mkfs.vfat $LOOP_DEV
sudo losetup -d $LOOP_DEV
dd if=target/x86_64-blog_os/debug/bootimage-my_kernel.bin of=disk.img conv=notrunc
qemu-system-x86_64 -drive format=raw,file=disk.img
It is also possible to write it to a USB stick and boot it on a real machine, but be careful to choose the correct device name, because everything on that device is overwritten:
dd if=target/x86_64-blog_os/debug/bootimage-blog_os.bin of=/dev/sdX && sync
Where sdX is the device name of your USB stick.
After writing the image to the USB stick, you can run it on real hardware by booting from it. You probably need to use a special boot menu or change the boot order in your BIOS configuration to boot from the USB stick. Note that it currently doesn’t work for UEFI machines, since the bootloader crate has no UEFI support yet.
- The MBR sector of the disk is erased, which leads to the error "Invalid MBR signature" and does not allow working with the file system.