tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1This document describes one way to create the rcu-test-image file
2that contains the filesystem used by the guest-OS kernel. There are
3probably much better ways of doing this, and this filesystem could no
4doubt be smaller. It is probably also possible to simply download
5an appropriate image from any number of places.
6
7That said, here are the commands:
8
9------------------------------------------------------------------------
10dd if=/dev/zero of=rcu-test-image bs=400M count=1
11mkfs.ext3 ./rcu-test-image
12sudo mount -o loop ./rcu-test-image /mnt
13
14# Replace "precise" below with your favorite Ubuntu release.
15# Empirical evidence says this image will work for 64-bit, but...
16# Note that debootstrap does take a few minutes to run. Or longer.
17sudo debootstrap --verbose --arch i386 precise /mnt http://archive.ubuntu.com/ubuntu
18cat << '___EOF___' | sudo dd of=/mnt/etc/fstab
19# UNCONFIGURED FSTAB FOR BASE SYSTEM
20#
21/dev/vda / ext3 defaults 1 1
22dev /dev tmpfs rw 0 0
23tmpfs /dev/shm tmpfs defaults 0 0
24devpts /dev/pts devpts gid=5,mode=620 0 0
25sysfs /sys sysfs defaults 0 0
26proc /proc proc defaults 0 0
27___EOF___
28sudo umount /mnt
29------------------------------------------------------------------------
30
31
32References:
33
34 http://sripathikodi.blogspot.com/2010/02/creating-kvm-bootable-fedora-system.html
35 https://help.ubuntu.com/community/KVM/CreateGuests
36 https://help.ubuntu.com/community/JeOSVMBuilder
37 http://wiki.libvirt.org/page/UbuntuKVMWalkthrough
38 http://www.moe.co.uk/2011/01/07/pci_add_option_rom-failed-to-find-romfile-pxe-rtl8139-bin/ -- "apt-get install kvm-pxe"
39 http://www.landley.net/writing/rootfs-howto.html
40 http://en.wikipedia.org/wiki/Initrd
41 http://en.wikipedia.org/wiki/Cpio
42 http://wiki.libvirt.org/page/UbuntuKVMWalkthrough