1.8 KiB
How to build this project
To build and run in qemu:
simply run make That's it. It'll ask for your password to run sudo mount image.bin, to create a few directories (and eventually move in files that will be needed for installation/running). If you don't feel comfortable doing this through make, cause you don't trust the build script or something, you can run
make tools && make bootloader && make kernel
followed by cp bin/bootloader.bin image.bin, qemu-img resize -f raw image.bin 64M, and diskwrite idm.elf ifsm.elf kernel.elf -o image.bin, which will then allow you to mount image.bin. Then, run mk {mount}/mod {mount}/bin {mount}/sys and copy and files that need to be copied into their respective folders (currently there are none other than idm.elf, ifsm.elf, and kernel.elf)
You MUST run the diskwrite tool BEFORE mounting, as it sets up the filesystem for the bootloader, and copies idm.elf, ifsm.elf and kernel.elf in a way that can be read by the bootloader.
To run, just use the command qemu-system-i386 -hda image.bin {settings}, with whatever settings you choose. I recommend using at least 32 megabytes of memory, and if you would like to see the kernel logs as they are writen to serial, with the option -serial mon:stdio
To build, but NOT run in qemu
You could always just run make and close qemu immediately, or you could run make mount. It'll ask for your password again for the above reason, but you can just follow the above steps, minus running qemu if you don't feel comfortable letting the build script handle it. Again, it is imperitive that you run diskwrite as specified, or else the bootloader won't be able to find the files (as linux defaults to long file names, and my bootloader does not support them, and the short filenames are in a different style than expected (eg kernel.elf becomes KERNEL ELF))