Xen

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Revision as of 18:08, 22 October 2012

Installation

Initialization

Context:

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.

Partitioning

```
fdisk /dev/sda
```

n 3 [enter] +6G

Formatting

mkfs.ext4 -E discard -L DEBIAN /dev/sda3

```
mount /dev/disk/by-label/DEBIAN /mnt
```

Requirements

```
pacman -S abs
```
```
pacman -S base-devel
```
```
abs
```
```
mkdir /tmp/debootstrap
```
```
cd /tmp/debootstrap
```

wget https://aur.archlinux.org/packages/de/debootstrap/PKGBUILD

```
makepkg -s
```
```
pacman -U debootstrap*
```

Debian

debootstrap --arch=amd64 wheezy /mnt http://ftp.fr.debian.org/debian

```
LANG=C chroot /mnt /bin/bash
```
```
export TERM=xterm-color
```
```
cd /dev
```
```
MAKEDEV generic
```
```
cd /
```
```
mkdir /vm
```

Configuration

Filesystems

```
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

```
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

```
nano /etc/resolv.conf
```

nameserver 192.168.1.1

```
echo XEN > /etc/hostname
```
```
nano /etc/hosts
```

127.0.0.1	localhost
127.0.0.1	XEN

Kernel

```
nano /etc/modprobe.d/blacklist.conf
```

blacklist pcspkr
blacklist acpi_cpufreq
blacklist bluetooth

Packages

```
nano /etc/apt/sources.list
```

deb http://ftp.fr.debian.org/debian wheezy main non-free

```
aptitude update
```

Localization

```
aptitude install locales
```
```
dpkg-reconfigure locales
```
```
aptitude install console-data
```
```
dpkg-reconfigure console-data
```

Defaults

Locale

```
nano /etc/default/locale
```

LANG=en_US.UTF-8

Keyboard

```
nano /etc/default/keyboard
```

XKBMODEL="pc105"
XKBLAYOUT="fr"

tmp filesystem

```
nano /etc/default/tmpfs
```

RAMTMP=yes

HDD temperature

```
nano /etc/default/tmpfs
```

RUN_DAEMON="true"
DISKS="/dev/sdb"

rcS

```
nano /etc/default/rcS
```

TMPTIME=-1

XEN

Deployment

```
aptitude install xen-linux-system-amd64
```

aptitude install xen-hypervisor-4.1-amd64

```
aptitude install xen-tools
```

Boot Manager

Files

```
exit
```

ln -s /usr/lib/syslinux/mboot.c32 /boot/syslinux/mboot.c32

```
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/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/initrd.img

SysLinux

```
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

LABEL xen
	MENU LABEL Debian ^Xen
	KERNEL mboot.c32
	APPEND ../Debian/xen.gz --- ../Debian/vmlinuz root=/dev/sda3 ro quiet elevator=noop --- ../Debian/initrd.img

```
shutdown -r now
```

Testing

```
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

X11

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
```
```
./NVIDIA-Linux-x86_64-304.60.run
```
```
nvidia-xconfig
```

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Dell"
    ModelName      "U2711"
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

```
aptitude install xfce4
```

aptitude install lightdm lightdm-gtk-greeter

echo "/usr/sbin/lightdm" > /etc/X11/default-display-manager

```
nano /etc/X11/Xsession
```

ERRFILE=$HOME/tmp/.xsession-errors

First VM

```
ifup xenbr0
```
```
brctl show
```
```
cd /vm
```
```
mkdir XEN
```
```
chgrp users XEN
```
```
chmod g+w XEN
```
```
nano /etc/xen-tools/xen-tools.conf
```

dir = /vm/XEN

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

```
cd
```
```
xm create /etc/xen/VPC1.cfg
```
```
xm list
```

Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  4902     8     r-----    101.5
VPC1                                         3   128     2     -b----      2.4

```
xm console 3
```
```
xm shutdown 3
```

Reset the VM root password

mount /vm/XEN/domains/VPC1/disk.img /mnt

```
chroot /mnt
```

Inside the VM

```
passwd
```
```
exit
```

Back to back

```
umount /vm/XEN/domains/VPC1/disk.img
```

GUI

```
aptitude install virt-manager
```
```
usermod -a -G libvirt LOGIN
```

@@ Line 277: / Line 277: @@
 Kernel path    :  /boot/vmlinuz-3.2.0-3-amd64
 Initrd path    :  /boot/initrd.img-3.2.0-3-amd64
-Networking Information
-----------------------
-IP Address 1   : 192.168.1.201 [MAC: 00:06:0E:05:0B:09]
 ...
-Creating partition image: /vm/XEN/domains/VPC1/swap.img
-Done
-Creating swap on /vm/XEN/domains/VPC1/swap.img
-Done
-Creating partition image: /vm/XEN/domains/VPC1/disk.img
-Done
-Creating ext3 filesystem on /vm/XEN/domains/VPC1/disk.img
-Done
-Installation method: debootstrap
-Done
-Running hooks
-Done
-No role scripts were specified.  Skipping
-Creating Xen configuration file
-Done
-No role scripts were specified.  Skipping
-Setting up root password
-Generating a password for the new guest.
-All done
 Logfile produced at:
 	 /var/log/xen-tools/VPC1.log
@@ Line 324: / Line 292: @@
 cd
 xm create /etc/xen/VPC1.cfg
-xentop
+xm list
 </syntaxhighlight>
 <small><pre>
-xentop - 20:37:29   Xen 4.1.3
+Name                                        ID   Mem VCPUs      State   Time(s)
-domains: 1 running, 1 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
+Domain-0                                     0  4902     8     r-----    101.5
-Mem: 6282360k total, 5224728k used, 1057632k free    CPUs: 8 @ 3210MHz
+VPC1                                         3   128     2     -b----      2.4
-      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        330    1.8    5020324   79.9   no limit       n/a     8    0        0        0    0        0        0        0          0          0    0
-      VPC1 --b---          3    0.3     131072    2.1     131072       2.1     2    1        9        0    2        0     1317       40      33524        784    0
-  Delay  Networks  vBds  Tmem  VCPUs  Repeat header  Sort order  Quit
 </pre></small>
+<syntaxhighlight lang="bash" line start="12">
+xm console 3
+xm shutdown 3
+</syntaxhighlight>
 * Reset the VM root password
 <syntaxhighlight lang="bash" line start="1">
@@ Line 352: / Line 317: @@
 umount /vm/XEN/domains/VPC1/disk.img
 </syntaxhighlight>
 ===== GUI =====
 <syntaxhighlight lang="bash" line start="1">

Xen

From Wiki.cyring.fr

Revision as of 18:08, 22 October 2012

Contents

Installation

Initialization

Partitioning

Formatting

Requirements

Debian

Configuration

Filesystems

Network

Kernel

Packages

Localization

Defaults

Locale

Keyboard

tmp filesystem

HDD temperature

rcS

XEN

Deployment

Boot Manager

Files

SysLinux

Testing

Virtual Machine Manager

X11

First VM

GUI

Views

Personal tools

Navigation

Search

Toolbox