Installing Fedora 10 on RHEL/CentOS 5.3 as a Xen DomU

Please be aware that I was not 100% successful using this method:
Note that you cannot install Fedora 10 on RHEL/CentOS 5.2 using virt-install since the image structure has changed. You will need to use the new virt-install in 5.3

• Prepare LVM with:
  lvcreate -L 5G -n vm_fred vg
  lvcreate -L 1G -n vm_fred_swp vg
  /sbin/mkswap /dev/vg/vm_fred_swp
• for installation under RHEL/CentOS (note that 32 bit domU's can only run under 32 bit dom0's)
• Set up the install location with:
  xloc=http://download.fedora.redhat.com/pub/fedora/linux/releases/10/Fedora/i3...
  or:
  ftp://less.cogeco.net/fedora/linux/releases/10/Fedora/i386/os/
  ftp://fedora.mirror.iweb.ca/releases/10/Fedora/i386/os/
• Create VM:
  virt-install \
--name fred \
--ram 512 \
--paravirt \
--vnc \
--file /dev/vg/vm_fred \
--location=$xloc
• for installation under Fedora 10
  -instead of --file use --disk path=/dev/vg/vm_fred
• running under gnome, virt-install seems to bring up a VNC session automatically. With KDE you have to launch it.
• Make sure you install a client that *does not* use LVM, or you will find it much more complicated to mount the client's partition from the host.
• Because of a bug in the Fedora 10 version of Anaconda, this may well fail because the wrong kernel is insalled (non PAE). see: https://bugzilla.redhat.com/show_bug.cgi?id=470905
• To fix this, use the workaround here: http://fedoraproject.org/wiki/Common_F10_bugs#Fedora_10_i686_Xen_guest_w...
  get the kickstart file from the root of the install: anaconda-ks.cfg
  Add the line kernel-PAE to the end of it and save it as fred-ks.cfg on a web server.
  Then add the line to virt-install: --extra-args "ks=http://me.com/fred-ks.cfg" /
• The instructions here are very simple: http://www.howtoforge.com/installing-xen-on-centos-5.2-i386-p2

  Another howto: http://www.techotopia.com/index.php/Installing_a_Xen_Guest_OS_from_the_C...(virt-install)

• Install NX (info from this page: http://www.nomachine.com/download-package.php?Prod_Id=355 )
  yum install wget #must be logged on as root
NXVER=3.3.0
CVER=6
NVER=17
SVER=22
NXURL=http://64.34.161.181/download
wget $NXURL/$NXVER/Linux/nxclient-$NXVER-$CVER.i386.rpm
wget $NXURL/$NXVER/Linux/nxnode-$NXVER-$NVER.i386.rpm
wget $NXURL/$NXVER/Linux/FE/nxserver-$NXVER-$SVER.i386.rpm
rpm -i nxclient-$NXVER-$CVER.i386.rpm
rpm -i nxnode-$NXVER-$NVER.i386.rpm
rpm -i nxserver-$NXVER-$SVER.i386.rpm
yum install xorg-x11-fonts-misc #it is probably necessary to install some fonts

  Errors in connecting to NX server can sometimes be a problem with the hostname resolving.
  If upgrading an existing installation, use -U rather than -i
  Update the port numbers if necessary:
  vi /usr/NX/etc/node.cfg & server.cfg
  change: #SSHD_Port=22 to SSHD_Port=xxxx # or whatever
  vi /etc/ssh/sshd_config
  and add Port xxxx under Port 22
  /etc/init.d/sshd restart
/etc/init.d/nxserver restart
• notes for kde:http://kde-redhat.sourceforge.net/
  blog (portugese?): http://psytux.wordpress.com/2008/12/09/kde-42-beta-1-en-fedora-10/

Mounting the client disks from the host

Assuming you haven't used LVM for the client, you can do the following:
kpartx -av /dev/vg/vm_fred #create mapping - will return all the mappings available
#ls -l /dev/mapper/ #will give you their names
mount /dev/mapper/nameofmappingp1 mountpoint #mount the one you want (e.g mount /dev/mapper/vm_fred2 vm_fred )
#do stuff
umount mountpoint #must do this before removing mapping
kpartx -dv /dev/vg/vm_fred #remove mapping when done


other stuff

yum install rss-glx-gnome-screensaver #skyrocket screensaver
yum install rss-glx-kde # or for kde