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Xen

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(SysOp user)
 
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Line 1: Line 1:
-
=== Installation ===
+
== Installation ==
-
==== Initialization ====
+
=== Initialization ===
Context:
Context:
# Create a SSD partition, number 3, formatted with a 6 GB Ext4 file system.
# Create a SSD partition, number 3, formatted with a 6 GB Ext4 file system.
# Attach an existing HDD partition named /vm to store the virtual machines.
# Attach an existing HDD partition named /vm to store the virtual machines.
-
===== Partitioning =====
+
==== Partitioning ====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
fdisk /dev/sda
fdisk /dev/sda
Line 12: Line 12:
</pre>
</pre>
-
===== Formatting =====
+
==== Formatting ====
<syntaxhighlight lang="bash" line start="2">
<syntaxhighlight lang="bash" line start="2">
mkfs.ext4 -E discard -L DEBIAN /dev/sda3
mkfs.ext4 -E discard -L DEBIAN /dev/sda3
Line 18: Line 18:
</syntaxhighlight>
</syntaxhighlight>
-
==== Requirements ====
+
=== ArchLinux as a source ===
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
pacman -S abs
pacman -S abs
Line 29: Line 29:
pacman -U debootstrap*
pacman -U debootstrap*
</syntaxhighlight>
</syntaxhighlight>
-
==== Debian ====
+
=== Debian as a host ===
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
debootstrap --arch=amd64 wheezy /mnt http://ftp.fr.debian.org/debian
debootstrap --arch=amd64 wheezy /mnt http://ftp.fr.debian.org/debian
Line 40: Line 40:
</syntaxhighlight>
</syntaxhighlight>
-
=== Configuration ===
+
== Configuration ==
-
==== Filesystems ====
+
=== Filesystems ===
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/fstab
nano /etc/fstab
Line 61: Line 61:
</pre>
</pre>
-
==== Network ====
+
=== Network ===
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/network/interfaces
nano /etc/network/interfaces
Line 95: Line 95:
</pre>
</pre>
-
==== Kernel ====
+
=== Kernel ===
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/modprobe.d/blacklist.conf
nano /etc/modprobe.d/blacklist.conf
Line 104: Line 104:
blacklist bluetooth
blacklist bluetooth
</pre>
</pre>
-
==== Packages ====
+
=== Packages ===
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/apt/sources.list
nano /etc/apt/sources.list
Line 114: Line 114:
aptitude update
aptitude update
</syntaxhighlight>
</syntaxhighlight>
-
==== Localization ====
+
=== Localization ===
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
aptitude install locales
aptitude install locales
Line 121: Line 121:
dpkg-reconfigure console-data
dpkg-reconfigure console-data
</syntaxhighlight>
</syntaxhighlight>
-
==== Defaults ====
+
=== Defaults ===
-
===== Locale =====
+
==== Locale ====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/default/locale
nano /etc/default/locale
Line 129: Line 129:
LANG=en_US.UTF-8
LANG=en_US.UTF-8
</pre>
</pre>
-
===== Keyboard =====
+
==== Keyboard ====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/default/keyboard
nano /etc/default/keyboard
Line 137: Line 137:
XKBLAYOUT="fr"
XKBLAYOUT="fr"
</pre>
</pre>
-
===== tmp filesystem =====
+
==== tmp filesystem ====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/default/tmpfs
nano /etc/default/tmpfs
Line 144: Line 144:
RAMTMP=yes
RAMTMP=yes
</pre>
</pre>
-
===== HDD temperature =====
+
==== HDD temperature ====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/default/tmpfs
nano /etc/default/tmpfs
Line 152: Line 152:
DISKS="/dev/sdb"
DISKS="/dev/sdb"
</pre>
</pre>
-
===== rcS =====
+
==== rcS ====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
nano /etc/default/rcS
nano /etc/default/rcS
Line 159: Line 159:
TMPTIME=-1
TMPTIME=-1
</pre>
</pre>
-
 
+
=== Boot Manager ===
-
=== XEN ===
+
==== SysLinux ====
-
==== Deployment ====
+
-
<syntaxhighlight lang="bash" line start="1">
+
-
aptitude install xen-linux-system-amd64
+
-
aptitude install xen-hypervisor-4.1-amd64
+
-
aptitude install xen-tools
+
-
</syntaxhighlight>
+
-
 
+
-
==== Boot Manager ====
+
-
===== Files =====
+
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
exit
exit
-
ln -s /usr/lib/syslinux/mboot.c32 /boot/syslinux/mboot.c32
 
mkdir /boot/Debian
mkdir /boot/Debian
-
cp /mnt/boot/xen-4.1-amd64.gz /boot/Debian/
 
cp /mnt/boot/vmlinuz-3.2.0-3-amd64 /boot/Debian/
cp /mnt/boot/vmlinuz-3.2.0-3-amd64 /boot/Debian/
cp /mnt/boot/initrd.img-3.2.0-3-amd64 /boot/Debian/
cp /mnt/boot/initrd.img-3.2.0-3-amd64 /boot/Debian/
-
ln -s /boot/Debian/xen-4.1-amd64.gz /boot/Debian/xen.gz
 
ln -s /boot/Debian/vmlinuz-3.2.0-3-amd64 /boot/Debian/vmlinuz
ln -s /boot/Debian/vmlinuz-3.2.0-3-amd64 /boot/Debian/vmlinuz
-
ln -s /boot/Debian/vmlinuz-3.2.0-3-amd64 /boot/Debian/initrd.img
+
ln -s /boot/Debian/initrd.img-3.2.0-3-amd64 /boot/Debian/initrd.img
-
</syntaxhighlight>
+
-
===== SysLinux =====
+
-
<syntaxhighlight lang="bash" line start="1">
+
nano /boot/syslinux/syslinux.cfg
nano /boot/syslinux/syslinux.cfg
</syntaxhighlight>
</syntaxhighlight>
-
<pre>
+
<small><pre>
LABEL debian
LABEL debian
MENU LABEL De^bian Linux
MENU LABEL De^bian Linux
Line 191: Line 176:
APPEND root=/dev/sda3 ro quiet elevator=noop nmi_watchdog=0 vga=0
APPEND root=/dev/sda3 ro quiet elevator=noop nmi_watchdog=0 vga=0
INITRD ../Debian/initrd.img
INITRD ../Debian/initrd.img
-
 
+
</pre></small>
-
LABEL xen
+
==== Reboot to Debian ====
-
MENU LABEL Debian ^Xen
+
<syntaxhighlight lang="bash" line start="1">
-
KERNEL mboot.c32
+
-
APPEND ../Debian/xen.gz --- ../Debian/vmlinuz root=/dev/sda3 ro quiet elevator=noop --- ../Debian/initrd.img
+
-
</pre>
+
-
<syntaxhighlight lang="bash" line start="2">
+
shutdown -r now
shutdown -r now
</syntaxhighlight>
</syntaxhighlight>
-
==== Testing ====
+
=== Xorg ===
-
<syntaxhighlight lang="bash" line start="1">
+
-
xentop
+
-
</syntaxhighlight>
+
-
<small><pre>
+
-
xentop - 14:55:16  Xen 4.1.3
+
-
1 domains: 1 running, 0 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
+
-
Mem: 6282360k total, 5093488k used, 1188872k free    CPUs: 8 @ 3210MHz
+
-
      NAME  STATE  CPU(sec) CPU(%)    MEM(k) MEM(%)  MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) VBDS  VBD_OO  VBD_RD  VBD_WR  VBD_RSECT  VBD_WSECT SSID
+
-
  Domain-0 -----r        491    1.7    5020324  79.9  no limit      n/a    8    0        0        0    0        0        0        0          0          0 0
+
-
 
+
-
 
+
-
 
+
-
  Delay  Networks  vBds  Tmem  VCPUs  Repeat header  Sort order  Quit 
+
-
</pre>
+
-
</small>
+
-
 
+
-
==== Virtual Machine Manager ====
+
-
===== X11 =====
+
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
 +
aptitude install xfce4
wget http://us.download.nvidia.com/XFree86/Linux-x86_64/304.60/NVIDIA-Linux-x86_64-304.60.run
wget http://us.download.nvidia.com/XFree86/Linux-x86_64/304.60/NVIDIA-Linux-x86_64-304.60.run
chmod +x NVIDIA-Linux-x86_64-304.60.run
chmod +x NVIDIA-Linux-x86_64-304.60.run
Line 239: Line 203:
EndSection
EndSection
</pre>
</pre>
-
<syntaxhighlight lang="bash" line start="5">
+
<syntaxhighlight lang="bash" line start="6">
-
aptitude install xfce4
+
aptitude install chromium
aptitude install lightdm lightdm-gtk-greeter
aptitude install lightdm lightdm-gtk-greeter
echo "/usr/sbin/lightdm" > /etc/X11/default-display-manager
echo "/usr/sbin/lightdm" > /etc/X11/default-display-manager
 +
</syntaxhighlight>
 +
=== SysOp user ===
 +
<syntaxhighlight lang="bash" line start="1">
 +
adduser --gid 100 sysop
 +
mkdir /home/sysop/tmp
 +
ln -fs /home/sysop/tmp /home/sysop/.cache
nano /etc/X11/Xsession
nano /etc/X11/Xsession
</syntaxhighlight>
</syntaxhighlight>
Line 248: Line 218:
ERRFILE=$HOME/tmp/.xsession-errors
ERRFILE=$HOME/tmp/.xsession-errors
</pre>
</pre>
-
===== First VM =====
+
<syntaxhighlight lang="bash" line start="5">
 +
nano /etc/fstab
 +
</syntaxhighlight>
 +
<pre>
 +
# /etc/fstab
 +
#
 +
# <file system>          <dir>          <type> <options>                    <dump> <pass>
 +
 
 +
tmpfs                    /home/sysop/tmp tmpfs  size=2048M                  0      0
 +
</pre>
 +
 
 +
== XEN ==
 +
=== Deployment ===
 +
<syntaxhighlight lang="bash" line start="1">
 +
aptitude install xen-linux-system-amd64
 +
aptitude install xen-hypervisor-4.1-amd64
 +
aptitude install xen-tools
 +
</syntaxhighlight>
 +
=== Append Boot Manager ===
 +
==== Copy fresh files ====
 +
<syntaxhighlight lang="bash" line start="1">
 +
ln -s /usr/lib/syslinux/mboot.c32 /boot/syslinux/mboot.c32
 +
cp /mnt/boot/xen-4.1-amd64.gz /boot/Debian/
 +
cp /mnt/boot/vmlinuz-3.2.0-3-amd64 /boot/Debian/
 +
cp /mnt/boot/initrd.img-3.2.0-3-amd64 /boot/Debian/
 +
ln -s /boot/Debian/xen-4.1-amd64.gz /boot/Debian/xen.gz
 +
ln -s /boot/Debian/vmlinuz-3.2.0-3-amd64 /boot/Debian/vmlinuz
 +
ln -s /boot/Debian/initrd.img-3.2.0-3-amd64 /boot/Debian/initrd.img
 +
</syntaxhighlight>
 +
==== SysLinux ====
 +
<syntaxhighlight lang="bash" line start="1">
 +
nano /boot/syslinux/syslinux.cfg
 +
</syntaxhighlight>
 +
<small><pre>
 +
LABEL xen
 +
MENU LABEL Debian ^Xen
 +
KERNEL mboot.c32
 +
APPEND ../Debian/xen.gz dom0_mem=512M,max:512M dom0_max_vcpus=1-2 dom0_vcpus_pin=1 --- ../Debian/vmlinuz root=/dev/sda3 ro quiet elevator=noop --- ../Debian/initrd.img
 +
</pre></small>
 +
=== Reboot to XEN ===
 +
<syntaxhighlight lang="bash" line start="1">
 +
shutdown -r now
 +
</syntaxhighlight>
 +
 
 +
=== Testing ===
 +
<syntaxhighlight lang="bash" line start="1">
 +
xentop
 +
</syntaxhighlight>
 +
<small><pre>
 +
xentop - 14:55:16  Xen 4.1.3
 +
1 domains: 1 running, 0 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
 +
Mem: 6282360k total, 5093488k used, 1188872k free    CPUs: 8 @ 3210MHz
 +
      NAME  STATE  CPU(sec) CPU(%)    MEM(k) MEM(%)  MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) VBDS  VBD_OO  VBD_RD  VBD_WR  VBD_RSECT  VBD_WSECT SSID
 +
  Domain-0 -----r        491    1.7    5020324  79.9  no limit      n/a    8    0        0        0    0        0        0        0          0          0 0
 +
 
 +
 
 +
 
 +
  Delay  Networks  vBds  Tmem  VCPUs  Repeat header  Sort order  Quit 
 +
</pre>
 +
</small>
 +
 
 +
=== Virtual Machine Manager ===
 +
==== First VM ====
* Prepare the VM directory
* Prepare the VM directory
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
Line 263: Line 295:
dir = /vm/XEN
dir = /vm/XEN
</pre>
</pre>
-
* Create a Debian VM
+
===== Create a Debian VM =====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
xen-create-image --hostname VPC1 --ip 192.168.1.201 --vcpus 2 --dist wheezy
xen-create-image --hostname VPC1 --ip 192.168.1.201 --vcpus 2 --dist wheezy
Line 292: Line 324:
Root Password  :  xXxXxXxX
Root Password  :  xXxXxXxX
</pre></small>
</pre></small>
-
* Start the new VM
+
* Define Video & Audio features
<syntaxhighlight lang="bash" line start="2">
<syntaxhighlight lang="bash" line start="2">
 +
nano /etc/xen/VPC1.cfg
 +
</syntaxhighlight>
 +
<pre>
 +
#
 +
#  Graphics and Audio
 +
#
 +
stdvga      = '1'
 +
videoram    = '16'
 +
</pre>
 +
 +
===== Start the new VM =====
 +
<syntaxhighlight lang="bash" line start="1">
xm create /etc/xen/VPC1.cfg
xm create /etc/xen/VPC1.cfg
</syntaxhighlight>
</syntaxhighlight>
Line 300: Line 344:
Started domain VPC1 (id=3)
Started domain VPC1 (id=3)
</pre></small>
</pre></small>
-
* List any running VM
+
 
-
<syntaxhighlight lang="bash" line start="3">
+
===== List any running VM =====
 +
<syntaxhighlight lang="bash" line start="1">
xm list
xm list
</syntaxhighlight>
</syntaxhighlight>
Line 309: Line 354:
VPC1                                        3  128    2    -b----      2.4
VPC1                                        3  128    2    -b----      2.4
</pre></small>
</pre></small>
-
* Take control of the VM
+
 
-
( press ''CTRL+]'' to exit )
+
===== Take control of the VM =====
-
<syntaxhighlight lang="bash" line start="4">
+
* Using the console (''press'' CTRL+] ''to exit'')
 +
<syntaxhighlight lang="bash" line start="1">
xm console 3
xm console 3
 +
</syntaxhighlight>
 +
* Using ssh to remotely connect
 +
<syntaxhighlight lang="bash" line start="2">
 +
ssh root@VPC1
 +
</syntaxhighlight>
 +
 +
===== Windowing =====
 +
* Inside the VM, configure an Internet box
 +
<syntaxhighlight lang="bash" line start="1">
 +
aptitude install xorg
 +
dpkg-reconfigure x11-common
 +
aptitude install dbus
 +
aptitude install twm
 +
echo RandomPlacement >>  /etc/X11/twm/system.twmrc
 +
echo 'NoTitle { chromium }' >>  /etc/X11/twm/system.twmrc
 +
aptitude install chromium
 +
adduser --gid 100 cyring
 +
exit
 +
</syntaxhighlight>
 +
* Reconnect as a regular user
 +
<syntaxhighlight lang="bash" line start="1">
 +
ssh cyring:VPC1
 +
echo "chromium &" > .xinitrc
 +
echo "exec twm" >> .xinitrc
 +
startx
 +
</syntaxhighlight>
 +
 +
===== Stop the VM =====
 +
* Nicely shut down the VM
 +
<syntaxhighlight lang="bash" line start="1">
xm shutdown 3
xm shutdown 3
</syntaxhighlight>
</syntaxhighlight>
-
'''Lost password !'''
+
* Remove the VM from the managed environment.
 +
<syntaxhighlight lang="bash" line start="2">
 +
xm delete VPC1
 +
</syntaxhighlight>
 +
 
 +
===== Lost password ! =====
* Mount the VM filesystem
* Mount the VM filesystem
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
Line 331: Line 412:
</syntaxhighlight>
</syntaxhighlight>
-
===== GUI =====
+
==== Virt-Manager GUI ====
<syntaxhighlight lang="bash" line start="1">
<syntaxhighlight lang="bash" line start="1">
aptitude install virt-manager
aptitude install virt-manager
-
usermod -a -G libvirt LOGIN
+
# usermod -a -G libvirt sysop
 +
mkdir -p /vm/XEN/libvirt/images
 +
virsh pool-edit default
 +
</syntaxhighlight>
 +
<pre>
 +
    <path>/vm/XEN/libvirt/images</path>
 +
</pre>
 +
:''Pool default XML configuration edited.''
 +
<syntaxhighlight lang="bash" line start="5">
 +
mkdir -p /vm/XEN/libvirt/qemu/dump
 +
nano /etc/libvirt/qemu.conf
 +
</syntaxhighlight>
 +
<pre>
 +
auto_dump_path = "/vm/XEN/libvirt/qemu/dump"
 +
</pre>
 +
<syntaxhighlight lang="bash" line start="7">
 +
nano /etc/xen/xend-config.sxp
 +
</syntaxhighlight>
 +
<pre>
 +
(xend-unix-server yes)
 +
</pre>
 +
* virt-manager & Debian Wheezy packages are broken : some paths to libraries are invalid
 +
<syntaxhighlight lang="bash" line start="8">
 +
# mkdir -p /usr/lib64/xen/bin
 +
# ln -s /usr/lib/xen-4.1/bin/qemu-dm /usr/lib64/xen/bin/qemu-dm
 +
# ln -s /usr/lib/xen-4.1 /usr/lib/xen-default
 +
service xen restart
 +
virt-manager
</syntaxhighlight>
</syntaxhighlight>

Latest revision as of 19:38, 23 October 2012

Contents

Installation

Initialization

Context:

  1. Create a SSD partition, number 3, formatted with a 6 GB Ext4 file system.
  2. Attach an existing HDD partition named /vm to store the virtual machines.

Partitioning

  1. fdisk /dev/sda
n 3 [enter] +6G

Formatting

  1. mkfs.ext4 -E discard -L DEBIAN /dev/sda3
  2. mount /dev/disk/by-label/DEBIAN /mnt

ArchLinux as a source

  1. pacman -S abs
  2. pacman -S base-devel
  3. abs
  4. mkdir /tmp/debootstrap
  5. cd /tmp/debootstrap
  6. wget https://aur.archlinux.org/packages/de/debootstrap/PKGBUILD
  7. makepkg -s
  8. pacman -U debootstrap*

Debian as a host

  1. debootstrap --arch=amd64 wheezy /mnt http://ftp.fr.debian.org/debian
  2. LANG=C chroot /mnt /bin/bash
  3. export TERM=xterm-color
  4. cd /dev
  5. MAKEDEV generic
  6. cd /
  7. mkdir /vm

Configuration

Filesystems

  1. nano /etc/fstab
# /etc/fstab
#
# <file system>           <dir>    <type> <options>                           <dump> <pass>

/dev/disk/by-label/DEBIAN /        ext4   discard,noatime,nodiratime,defaults 0      1

proc                      /proc    proc   defaults                            0      0
devpts                    /dev/pts devpts defaults                            0      0
shm                       /dev/shm tmpfs  nodev,nosuid                        0      0
tmpfs                     /tmp     tmpfs  size=2048M                          0      0
tmpfs                     /var/log tmpfs  size=64M                            0      0

/dev/disk/by-label/VM     /vm      ext4   defaults                            0      0

Network

  1. nano /etc/network/interfaces
auto lo eth0 xenbr0
iface lo inet loopback
iface eth0 inet static
    address 192.168.1.101
    network 192.168.1.0
    netmask 255.255.255.0
    gateway 192.168.1.1
iface xenbr0 inet static
    bridge_ports none
    address 192.168.1.199
    broadcast 192.168.1.255
    netmask 255.255.255.0
    gateway 192.168.1.1
  1. nano /etc/resolv.conf
nameserver 192.168.1.1
  1. echo XEN > /etc/hostname
  2. nano /etc/hosts
127.0.0.1	localhost
127.0.0.1	XEN

Kernel

  1. nano /etc/modprobe.d/blacklist.conf
blacklist pcspkr
blacklist acpi_cpufreq
blacklist bluetooth

Packages

  1. nano /etc/apt/sources.list
deb http://ftp.fr.debian.org/debian wheezy main non-free
  1. aptitude update

Localization

  1. aptitude install locales
  2. dpkg-reconfigure locales
  3. aptitude install console-data
  4. dpkg-reconfigure console-data

Defaults

Locale

  1. nano /etc/default/locale
LANG=en_US.UTF-8

Keyboard

  1. nano /etc/default/keyboard
XKBMODEL="pc105"
XKBLAYOUT="fr"

tmp filesystem

  1. nano /etc/default/tmpfs
RAMTMP=yes

HDD temperature

  1. nano /etc/default/tmpfs
RUN_DAEMON="true"
DISKS="/dev/sdb"

rcS

  1. nano /etc/default/rcS
TMPTIME=-1

Boot Manager

SysLinux

  1. exit
  2. mkdir /boot/Debian
  3. cp /mnt/boot/vmlinuz-3.2.0-3-amd64 /boot/Debian/
  4. cp /mnt/boot/initrd.img-3.2.0-3-amd64 /boot/Debian/
  5. ln -s /boot/Debian/vmlinuz-3.2.0-3-amd64 /boot/Debian/vmlinuz
  6. ln -s /boot/Debian/initrd.img-3.2.0-3-amd64 /boot/Debian/initrd.img
  7. nano /boot/syslinux/syslinux.cfg
LABEL debian
	MENU LABEL De^bian Linux
	LINUX ../Debian/vmlinuz
	APPEND root=/dev/sda3 ro quiet elevator=noop nmi_watchdog=0 vga=0
	INITRD ../Debian/initrd.img

Reboot to Debian

  1. shutdown -r now

Xorg

  1. aptitude install xfce4
  2. wget http://us.download.nvidia.com/XFree86/Linux-x86_64/304.60/NVIDIA-Linux-x86_64-304.60.run
  3. chmod +x NVIDIA-Linux-x86_64-304.60.run
  4. ./NVIDIA-Linux-x86_64-304.60.run
  5. nvidia-xconfig
Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Dell"
    ModelName      "U2711"
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection
  1. aptitude install chromium
  2. aptitude install lightdm lightdm-gtk-greeter
  3. echo "/usr/sbin/lightdm" > /etc/X11/default-display-manager

SysOp user

  1. adduser --gid 100 sysop
  2. mkdir /home/sysop/tmp
  3. ln -fs /home/sysop/tmp /home/sysop/.cache
  4. nano /etc/X11/Xsession
ERRFILE=$HOME/tmp/.xsession-errors
  1. nano /etc/fstab
# /etc/fstab
#
# <file system>           <dir>           <type> <options>                    <dump> <pass>

tmpfs                     /home/sysop/tmp tmpfs  size=2048M                   0      0

XEN

Deployment

  1. aptitude install xen-linux-system-amd64
  2. aptitude install xen-hypervisor-4.1-amd64
  3. aptitude install xen-tools

Append Boot Manager

Copy fresh files

  1. ln -s /usr/lib/syslinux/mboot.c32 /boot/syslinux/mboot.c32
  2. cp /mnt/boot/xen-4.1-amd64.gz /boot/Debian/
  3. cp /mnt/boot/vmlinuz-3.2.0-3-amd64 /boot/Debian/
  4. cp /mnt/boot/initrd.img-3.2.0-3-amd64 /boot/Debian/
  5. ln -s /boot/Debian/xen-4.1-amd64.gz /boot/Debian/xen.gz
  6. ln -s /boot/Debian/vmlinuz-3.2.0-3-amd64 /boot/Debian/vmlinuz
  7. ln -s /boot/Debian/initrd.img-3.2.0-3-amd64 /boot/Debian/initrd.img

SysLinux

  1. nano /boot/syslinux/syslinux.cfg
LABEL xen
	MENU LABEL Debian ^Xen
	KERNEL mboot.c32
	APPEND ../Debian/xen.gz dom0_mem=512M,max:512M dom0_max_vcpus=1-2 dom0_vcpus_pin=1 --- ../Debian/vmlinuz root=/dev/sda3 ro quiet elevator=noop --- ../Debian/initrd.img

Reboot to XEN

  1. shutdown -r now

Testing

  1. xentop
xentop - 14:55:16   Xen 4.1.3
1 domains: 1 running, 0 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
Mem: 6282360k total, 5093488k used, 1188872k free    CPUs: 8 @ 3210MHz
      NAME  STATE   CPU(sec) CPU(%)     MEM(k) MEM(%)  MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) VBDS   VBD_OO   VBD_RD   VBD_WR  VBD_RSECT  VBD_WSECT SSID
  Domain-0 -----r        491    1.7    5020324   79.9   no limit       n/a     8    0        0        0    0        0        0        0          0          0 0



  Delay  Networks  vBds  Tmem  VCPUs  Repeat header  Sort order  Quit  

Virtual Machine Manager

First VM

  • Prepare the VM directory
  1. ifup xenbr0
  2. brctl show
  3. cd /vm
  4. mkdir XEN
  5. chgrp users XEN
  6. chmod g+w XEN
  7. cd
  8. nano /etc/xen-tools/xen-tools.conf
dir = /vm/XEN
Create a Debian VM
  1. xen-create-image --hostname VPC1 --ip 192.168.1.201 --vcpus 2 --dist wheezy
...
General Information
--------------------
Hostname       :  VPC1
Distribution   :  wheezy
Mirror         :  http://ftp.fr.debian.org/debian
Partitions     :  swap            128Mb (swap)
                  /               4Gb   (ext3)
Image type     :  sparse
Memory size    :  128Mb
Kernel path    :  /boot/vmlinuz-3.2.0-3-amd64
Initrd path    :  /boot/initrd.img-3.2.0-3-amd64
...
Logfile produced at:
	 /var/log/xen-tools/VPC1.log

Installation Summary
---------------------
Hostname        :  VPC1
Distribution    :  wheezy
IP-Address(es)  :  192.168.1.201 
RSA Fingerprint :  07:04:0e:08:0c:01:08:0b:0c:03:09:07:00:08:01:02
Root Password   :  xXxXxXxX
  • Define Video & Audio features
  1. nano /etc/xen/VPC1.cfg
#
#  Graphics and Audio
#
stdvga      = '1'
videoram    = '16'
Start the new VM
  1. xm create /etc/xen/VPC1.cfg
Using config file "/etc/xen/VPC1.cfg".
Started domain VPC1 (id=3)
List any running VM
  1. xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  4902     8     r-----    101.5
VPC1                                         3   128     2     -b----      2.4
Take control of the VM
  • Using the console (press CTRL+] to exit)
  1. xm console 3
  • Using ssh to remotely connect
  1. ssh root@VPC1
Windowing
  • Inside the VM, configure an Internet box
  1. aptitude install xorg
  2. dpkg-reconfigure x11-common
  3. aptitude install dbus
  4. aptitude install twm
  5. echo RandomPlacement >>  /etc/X11/twm/system.twmrc
  6. echo 'NoTitle { chromium }' >>  /etc/X11/twm/system.twmrc
  7. aptitude install chromium
  8. adduser --gid 100 cyring
  9. exit
  • Reconnect as a regular user
  1. ssh cyring:VPC1
  2. echo "chromium &" > .xinitrc
  3. echo "exec twm" >> .xinitrc
  4. startx
Stop the VM
  • Nicely shut down the VM
  1. xm shutdown 3
  • Remove the VM from the managed environment.
  1. xm delete VPC1
Lost password !
  • Mount the VM filesystem
  1. mount /vm/XEN/domains/VPC1/disk.img /mnt
  2. chroot /mnt
  • Inside the VM
  1. passwd
  2. exit
  • Back to back
  1. umount /vm/XEN/domains/VPC1/disk.img

Virt-Manager GUI

  1. aptitude install virt-manager
  2. # usermod -a -G libvirt sysop
  3. mkdir -p /vm/XEN/libvirt/images
  4. virsh pool-edit default
    <path>/vm/XEN/libvirt/images</path>
Pool default XML configuration edited.
  1. mkdir -p /vm/XEN/libvirt/qemu/dump
  2. nano /etc/libvirt/qemu.conf
auto_dump_path = "/vm/XEN/libvirt/qemu/dump"
  1. nano /etc/xen/xend-config.sxp
(xend-unix-server yes)
  • virt-manager & Debian Wheezy packages are broken : some paths to libraries are invalid
  1. # mkdir -p /usr/lib64/xen/bin
  2. # ln -s /usr/lib/xen-4.1/bin/qemu-dm /usr/lib64/xen/bin/qemu-dm
  3. # ln -s /usr/lib/xen-4.1 /usr/lib/xen-default
  4. service xen restart
  5. virt-manager
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