| 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 |
