Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / testing / selftests / rcutorture / doc / rcu-test-image.txt

diff --git a/kernel/tools/testing/selftests/rcutorture/doc/rcu-test-image.txt b/kernel/tools/testing/selftests/rcutorture/doc/rcu-test-image.txt
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+This document describes one way to created the rcu-test-image file
+that contains the filesystem used by the guest-OS kernel.  There are
+probably much better ways of doing this, and this filesystem could no
+doubt be smaller.  It is probably also possible to simply download
+an appropriate image from any number of places.
+
+That said, here are the commands:
+
+------------------------------------------------------------------------
+dd if=/dev/zero of=rcu-test-image bs=400M count=1
+mkfs.ext3 ./rcu-test-image
+sudo mount -o loop ./rcu-test-image /mnt
+
+# Replace "precise" below with your favorite Ubuntu release.
+# Empirical evidence says this image will work for 64-bit, but...
+# Note that debootstrap does take a few minutes to run.  Or longer.
+sudo debootstrap --verbose --arch i386 precise /mnt http://archive.ubuntu.com/ubuntu
+cat << '___EOF___' | sudo dd of=/mnt/etc/fstab
+# UNCONFIGURED FSTAB FOR BASE SYSTEM
+#
+/dev/vda        /               ext3    defaults        1 1
+dev             /dev            tmpfs   rw              0 0
+tmpfs           /dev/shm        tmpfs   defaults        0 0
+devpts          /dev/pts        devpts  gid=5,mode=620  0 0
+sysfs           /sys            sysfs   defaults        0 0
+proc            /proc           proc    defaults        0 0
+___EOF___
+sudo umount /mnt
+------------------------------------------------------------------------
+
+
+References:
+
+       http://sripathikodi.blogspot.com/2010/02/creating-kvm-bootable-fedora-system.html
+       https://help.ubuntu.com/community/KVM/CreateGuests
+       https://help.ubuntu.com/community/JeOSVMBuilder
+       http://wiki.libvirt.org/page/UbuntuKVMWalkthrough
+       http://www.moe.co.uk/2011/01/07/pci_add_option_rom-failed-to-find-romfile-pxe-rtl8139-bin/ -- "apt-get install kvm-pxe"
+       http://www.landley.net/writing/rootfs-howto.html
+       http://en.wikipedia.org/wiki/Initrd
+       http://en.wikipedia.org/wiki/Cpio
+       http://wiki.libvirt.org/page/UbuntuKVMWalkthrough