XENUS Unix-like OS

The XENUS OS is a multiuser, Unix-like operating system for the i386 (PC) platform.

Requirements

40MiB or larger IDE hard disk
1.44 3.5" floppy drive
80386 CPU (387 not required)
2 MiB or more RAM
CGA, EGA, VGA, or compatible
optionally 8250, 16550, or 16550A-compatible serial ports (only needed for serial terminals)

Distribution floppy image: download (gzipped)

The system should be built on an OpenBSD 6.4/amd64 host. While other hosts may work, the system uses and is sensitive to the host compiler.

Additionally the qemu package must be installed on the host.

To build the system type "make" in the source code top directory.

Warning: installing XENUS on a hard disk will wipe the partition table and overwrite existing data on the hard disk.

To install XENUS on a hard disk:

Multiboot installation allows XENUS to coexist with other operating systems on the same disk.

To install XENUS in a multiboot configuration:

Boot from the distribution floppy
Login as root. There is no password by default
Type pcdisk -ac. This command will create the XENUS partition and make it active.
If you want to install XENUS IPL in the MBR, type pcdisk -b.
Type hdsetup. This will overwrite the existing XENUS installation, if any.
Type halt
Boot XENUS from the hard disk

The system should be built on an OpenBSD 6.4/amd64 host. While other hosts may work, the system uses and is sensitive to the host compiler.

Additionally the qemu package must be installed on the host.

To build the system type "make" in the source code top directory.

Use the cc-xenus wrapper in the hostcmd directory if you want to compile programs for XENUS.

The system exposes an limited UNIX-like API.

The system now includes Minix binary compatibility.

There are two floppy disk images with software repackaged from Minix:

To install MNX or SDK: