Sunday, November 2, 2014

Openbsd pxeboot script.


Openbsd is a nix cousin of Linux. Has the ability to run on lower end systems that are internet ready. (i.e. All CPUs compatible with the Intel 80486 or better, with Intel-compatible hardware floating point support should work). Here is a couple of pxeboot scripts where you can use the internet to install it even via a floppy.








Two examples: (systems supported at http://ftp3.usa.openbsd.org/pub/OpenBSD/5.6/)

version 5.4 - amd64
  dhcp net0
  kernel -n img http://static.netboot.me/memdisk-iso iso
  initrd -n img http://ftp3.usa.openbsd.org/pub/OpenBSD/5.4/amd64/cd54.iso
  boot img

Version 5.6 - i386
 dhcp net0
  kernel -n img http://static.netboot.me/memdisk-iso iso
  initrd -n img http://ftp3.usa.openbsd.org/pub/OpenBSD/5.6/i386/cd56.iso
  boot img

You will need to go to www.romomatic.org to create the boot media. Choose the most recent release.




Then you will get the configuration page. Choose which media you want to use.


Click on customize to enter the pxeboot script



Press get image. the image will be saved to your drive as a file. Then you will need to use the dd command to write the image to your boot media. The picture represents the boot in a virtual machine.



You can start up the machine to have openbsd installed to with the boot media. Notice the menu is frugal. Makes it easier to install on lower end machines. If you are not familiar with Openbsd, it is a bit different than linux, so you may want to check out some install docs first. (http://www.openbsd.org/faq/faq4.html)

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