71 lines
1.6 KiB
Bash
Executable File
71 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# This script assembles the CrawOS bootloader, kernel and programs
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# with NASM, and then creates floppy and CD images (on Linux)
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# Only the root user can mount the floppy disk image as a virtual
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# drive (loopback mounting), in order to copy across the files
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# (If you need to blank the floppy image: 'mkdosfs disk_images/crawos.flp')
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if test "`whoami`" != "root" ; then
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echo "You must be logged in as root to build (for loopback mounting)"
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echo "Enter 'su' or 'sudo bash' to switch to root"
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exit
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fi
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if [ ! -e disk_images/crawos.flp ]
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then
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echo ">>> Creating new CrawOS floppy image..."
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mkdosfs -C disk_images/crawos.flp 1440 || exit
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fi
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echo ">>> Assembling bootloader..."
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nasm -O0 -w+orphan-labels -f bin -o source/bootload/bootload.bin source/bootload/bootload.asm || exit
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echo ">>> Assembling CrawOS kernel..."
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cd source
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nasm -O0 -w+orphan-labels -f bin -o kernel.bin kernel.asm || exit
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cd ..
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echo ">>> Assembling programs..."
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echo ">>> Adding bootloader to floppy image..."
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dd status=noxfer conv=notrunc if=source/bootload/bootload.bin of=disk_images/crawos.flp || exit
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echo ">>> Copying CrawOS kernel and programs..."
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rm -rf tmp-loop
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mkdir tmp-loop && mount -o loop -t vfat disk_images/crawos.flp tmp-loop && cp source/kernel.bin tmp-loop/
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sleep 0.2
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echo ">>> Unmounting loopback floppy..."
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umount tmp-loop || exit
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rm -rf tmp-loop
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echo ">>> Creating CD-ROM ISO image..."
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rm -f disk_images/crawos.iso
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mkisofs -quiet -V 'MIKEOS' -input-charset iso8859-1 -o disk_images/crawos.iso -b crawos.flp disk_images/ || exit
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echo '>>> Done!'
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qemu-system-i386 -drive file=disk_images/crawos.flp,index=0,if=floppy,format=raw
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