A multi-tasking operating system for the x86 32-bit PC architecture

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Installing and Running XOS version 3.1.69

  • XOS is installed by copying the contents of the XOS directory tree to the root of a FAT formated disk. This can be done one of two ways:
  • Expand the XOS.ZIP Zip file.
  • Copy the XOS directory tree from the XOS CD.

If you have downloaded XOS.ZIP, it can be expanded to the root of the desired FAT formated disk (FAT-12, FAT-16 or FAT-32). The OS and the program used to expand the Zip file must support long file names.

If you have created a CD from the XOSCD.ISO CD image, you can copy the XOS directory from the CD. The OS and the program used to copy the files must support long file names.

If you have booted the XOSCD, you can use the XOS copy command to copy the files as follows: (X is the drive letter that XOS assigns to the CD drive it is booted from. C is the drive you are installing XOS to.)

mkdir C:\xos
copy X:\xos\...\*.* C:\xos\...\

Once XOS is installed, it can be booted using any removable disk (that can be booted from) which contains the XOS bootstrap. This is usually a CD or a floppy disk. The XOS CD is bootable and can be used if your computer supports booting from a CD. If you need to use a floppy disk, an XOS boot floppy can be created using the MKFLOPPY program which is contained in the BOOT.ZIP Zip file and is also in the root of the XOS CD. This is a DOS command line program which will copy a floppy image to a floppy disk. The image file to use (BOOTFLP.BIN) is also in the BOOT.ZIP Zip file and in the root of the XOS CD.

Once you have the XOS bootstrap running, simply type the drive letter of the disk where XOS is installed followed by a colon followed by <ENTER>. Note: If you have several partitions and multiple hard disks, the bootstrap may not assign drive letters in the same order as your other operating systems. If this happens, either install XOS on the C partition (which should usually be named correctly) or simply try each letter until you find the correct one. You can also use the XOS format partition names which have the format DnPm, where n is the drive number (starting with 0) and m is the partition number (starting with 1). On most systems the C: partition will be D0P1:.

You can continue booting XOS as described above using a removable disk containing the XOS bootstrap or you can install the XOS bootstrap on the partition where XOS is installed. The XOS bootstrap is a partition boot block bootstrap which can co-exist with all versions of DOS and with Windows3, Windows95, and Windows98. (It will probably co-exist with WindowsME as well, but this has not been tested.) XOS can also dual-boot with WindowsXP provided XOS is installed in a different partition from XP. Don't try this unless you are very familiar with setting up the XP boot manager. It is very easy to make XP unbootable if this is done wrong! Drive letter conflicts are much worse when dual booting with WindowsXP than with other versions of Windows. Dual booting with WindowsNT and Windows2000 is probably possible, but it has not been tested. The same warnings apply as for WindowsXP.

The XOS command for installing the bootstrap is: (braces indicate optional items - do not type them)

MKBOOT C: {options}

where C is the disk where the bootstrap will be installed.
Options are:
/timeout=n - Specifies the time (in seconds) before the default system is loaded. If not specified, there is no timeout.
/auto - Automatically loads the default system without displaying the boot screen.
/def=name - Specifies the default system to load.
/fn=name - Adds an entry to the boot menu for function key n (n may be between 1 and 9).

The XOS bootstrap can be removed from a disk at any time with the following XOS command:

RMBOOT C:

where C is the disk the bootstrap is being removed from.


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