The Book of Xen by Chris Takemura & Luke S. Crawford

Author:Chris Takemura & Luke S. Crawford [Chris Takemura]
Language: eng
Format: epub
Tags: COMPUTERS / Operating Systems / General
ISBN: 9781593272623
Publisher: No Starch Press
Published: 2009-10-30T16:00:00+00:00

Installing NetBSD as a DomU

Installing NetBSD as a domU is easy, even with a Linux dom0. In fact, because NetBSD's INSTALL kernels include a ramdisk with everything necessary to complete the installation, we can even do it without modifying the configuration from the dom0, given a sufficiently versatile PyGRUB or PV-GRUB setup.

For this discussion, we assume that you've got a domU of some sort already set up—perhaps one of the generic prgmr.com Linux domains. In this domU, you'll need to have a small boot partition that GRUB[50] can read. This is where we'll store the kernel and GRUB configuration.

First, from within your domain, download the NetBSD kernels:

# wget http://mirror.planetunix.net/pub/NetBSD/NetBSD-5.0/amd64/binary/kernel/ netbsd-INSTALL_XEN3_DOMU.gz # wget http://mirror.planetunix.net/pub/NetBSD/NetBSD-5.0/amd64/binary/kernel/ netbsd-XEN3_DOMU.gz

Then, edit the domain's GRUB menu (most likely at /boot/grub/menu.lst) to load the INSTALL kernel on next reboot. (On the reboot after that, when the installation's done, you'll select the NetBSD run option.)

title NetBSD install root (hd0,0) kernel /boot/netbsd-INSTALL_XEN3_DOMU title NetBSD run root (hd0,0) kernel /boot/netbsd-XEN3_DOMU root=xbd1a

Reboot, selecting the NetBSD install option.

As if by magic, your domain will begin running the NetBSD installer, until you end up in a totally ordinary NetBSD install session. Go through the steps of the NetBSD FTP install. There's some very nice documentation at http://netbsd.org/docs/guide/en/chap-exinst.html.

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