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15 lines
673 B
Markdown
15 lines
673 B
Markdown
# linux-486
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This repo provides the files necessary to build a Linux-based "operating system" for old i486 systems with at least 8MB of RAM.
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The generated single floppy disk image allows you to boot into a Busybox system that is kept entirely in memory, freeing up the floppy disk drive for other disks/data.
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The boot process goes:
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* GRUB 0.96 boots Linux.
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* Linux loads an embedded initramfs with a "preinit" init binary.
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* "preinit" mounts the floppy disk, decompresses busybox into the root ramdisk filesystem, then unmounts the floppy.
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* busybox runs its own init process, bringing you to a shell.
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To test the floppy image with QEMU, provide at least 8320K of RAM.
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