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| | {{Languages|UbuntuHelp:XenOnUbuntuBinaryInstall}} | | {{Languages|UbuntuHelp:XenOnUbuntuBinaryInstall}} |
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| − | NOTE: This document appears to be newer, https://wiki.ubuntu.com/XenOnEdgy
| + | All of this info was merged into the XenVirtualMachine page. |
| − | | + | |
| − | == Overview ==
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| − | | + | |
| − | This How To describes the installation of Xen Prebuilt Binaries for Ubuntu (works with Breezy and Dapper). More How-To's listed at the bottom describe other ways, including the more complex building of the Xen kernel. This how-to presumes a second hard disk (hdb) where the lvm will reside. You may easily format and partition your single hard drive to use lvm, and modify the how-to accordingly.
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| − | This begins with a clean install, server configuration (no GUI), and installs the prebuilt kernel and other binaries required to run Xen 3.0.
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| − | | + | |
| − | == Installing Ubuntu ==
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| − | Boot to the Ubuntu install cd, and type/select <code><nowiki>server</nowiki></code> to install a minimal OS with no GUI. While Reiser FS is considered faster, some people have had problems running [http://lists.xensource.com/archives/html/xen-users/2006-02/msg00466.html Xen and Reiser], so ext3 (the default) or xfs may be a better choice.
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| − | Choose default options, leaving the second hard drive untouched, finish the installation, and login.
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| − | | + | |
| − | === Configuring the system ===
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| − | All commands here are sudo; you may type <code><nowiki>sudo -s</nowiki></code> to switch to sudo for this session. | + | |
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| − | <pre><nowiki>apt-get update
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| − | apt-get upgrade
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| − | apt-get install iproute python python-twisted bridge-utils</nowiki></pre>
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| − | If you have problems connecting, check NetworkNotEnabled to see if your ethernet card is activated.
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| − | Download the Tarballed Pre-built installations of Xen 3.0 (you'll probably choose 'for 32 bit') from [http://www.xensource.com/xen/downloads/ XenSource]. Untar it, changing the command so version numbers match, with
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| − | | + | |
| − | <code><nowiki>tar xvf xen-3.0.2-install-x86_32.tgz</nowiki></code>
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| − | In the untared xen directory, type <code><nowiki>sh install.sh</nowiki></code>
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| − | Check for error messages - it should say OK to all.
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| − | <code><nowiki>/sbin/depmod -a 2.6.16-xen</nowiki></code> (change this line if needed to match what is in your /lib/modules)
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| − | <code><nowiki>cd /boot/grub</nowiki></code>
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| − | Edit using your favorite text editor, edit menu.lst, placing the following lines BEFORE the Automagic section (check your /boot folder to see if the following lines point to the correct files):
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| − | <pre><nowiki>title Xen 3.0 / XenLinux 2.6
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| − | kernel /boot/xen-3.gz dom0_mem=128M
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| − | module /boot/vmlinuz-2.6-xen root=/dev/hda1 ro</nowiki></pre>
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| − | Reboot!
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| − | NOTE: If you are using SCSI drives, or any that need to load drivers before the file system is accessed, you will need a new initrd image.
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| − | | + | |
| − | <pre><nowiki>
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| − | cd /boot
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| − | mkinitramfs -o initrd.img-2.6.16-xen 2.6.16-xen
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| − | </nowiki></pre>
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| − | | + | |
| − | Then, in menu.lst under your already entered module line, place:
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| − | | + | |
| − | <pre><nowiki>
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| − | module /boot/initrd.img-2.6.16-xen
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| − | </nowiki></pre>
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| − | NOTE: if you get the message "Error 15: File not found" when you boot, then try changing menu.lst to the following:
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| − | | + | |
| − | <pre><nowiki>title Xen 3.0 / XenLinux 2.6
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| − | kernel /xen-3.gz dom0_mem=128M
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| − | module /vmlinuz-2.6-xen root=/dev/hda1 ro</nowiki></pre>
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| − | NOTE: if you are using SATA drives, you may have a kernel panic error message. This appears to be due to the limited set of drivers that come with the Xen pre-built kernel. This appears to affect Xen 3.0.2 but not 2.0.7
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| − | Check your kernel by typing <code><nowiki>uname -r</nowiki></code> and you should see <code><nowiki>2.6.16-xen</nowiki></code>.
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| − | | + | |
| − | === /lib/tls error ===
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| − | If you receive a large warning message during boot-up about /lib/tls, you may do one of the following:
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| − | * <code><nowiki>mv /lib/tls /lib/tls.disabled</nowiki></code> (easy, but the issue may crop up again after an upgrade)
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| − | * [http://wiki.xensource.com/xenwiki/DebianTlsLibcDiversion Divert Xen using a Script] (This makes sure upgrades don't put /lib/tls back again.
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| − | | + | |
| − | Note: Disabling /lib/tls gives significantly poor performance for glibc. Find a way to install a Xen-friendly glibc. Removing /lib/tls is disabling the thread-local storage (tls) handling features of glibc by hiding them.
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| − | | + | |
| − | === libcrypto error ===
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| − | If when starting xend, you get the error: blktapctrl: error while loading shared libraries: libcrypto.so.0.9.7: cannot open shared object file: No such file or directory
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| − | Figure out the version of libcrypto you have:
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| − | | + | |
| − | <code><nowiki>ls /usr/lib/libcrypto.so.*</nowiki></code>
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| − | for example :
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| − | /usr/lib/libcrypto.so.0.9.8
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| − | Make a symbolic link to it:
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| − | <code><nowiki>ln -s /usr/lib/libcrypto.so.0.9.8 /usr/lib/libcrypto.so.0.9.7</nowiki></code>
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| − | === Dom0 Xorg nvidia ===
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| − | If you are trying to install xen on a Ubuntu Desktop machine, Xorg with original nvidia drivers will fail. You can try to follow this tutorial: [[UbuntuHelp:XenVirtualMachine/NVidiaOnXenOnUbuntuEdgy]].
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| − | | + | |
| − | === Ubuntu Specific Configurations ===
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| − | If you want to have xend start automatically, update your init.d by entering the following commands:
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| − | <pre><nowiki>update-rc.d xend defaults 20 21
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| − | update-rc.d xendomains defaults 21 20</nowiki></pre>
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| − | [http://lists.xensource.com/archives/html/xen-users/2006-04/msg00574.html Peter Fokkinga] suggests modifying /etc/init.d/xend, adding these lines near the beginning of the file (after the "grep -q ..." block)
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| − | <pre><nowiki># on Ubuntu (Debian too?) /var/run/xenstored does not exist after reboot
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| − | if [ ! -d /var/run/xenstored ] ; then
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| − | mkdir /var/run/xenstored
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| − | fi</nowiki></pre>
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| − | and in /etc/init.d/xendomains, change
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| − | <code><nowiki>LOCKFILE=/var/lock/subsys/xendomains</nowiki></code>
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| − | to
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| − | <code><nowiki>LOCKFILE=/var/lock/xendomains</nowiki></code>
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| − | Is xen running properly? Type <code><nowiki>xm list</nowiki></code> and you should see <code><nowiki>Domain-0</nowiki></code>; if not, reboot and double check.
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| − | You may need to add an initrd line to your grub config. See [http://wiki.xensource.com/xenwiki/InstallationNotes?highlight=%28grub%29 here] and [http://wiki.xensource.com/xenwiki/GettingStarted?highlight=%28initrd%29 and here] for details. (Question - can someone tell me when I would need to do this? Does it depend on hardware?)
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| − | | + | |
| − | == Further Tasks ==
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| − | ==== Unneccesary packages ====
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| − | Some people suggest uninstalling unneccesary packages. You may choose to uninstall
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| − | <code><nowiki>apt-get remove ppp pppconfig pppoeconf</nowiki></code>
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| − | | + | |
| − | ==== LVM ====
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| − | You can [http://www.faqs.org/docs/Linux-mini/Partition.html partition and format] the remaining free space, and then use lvm to create logical volumes using [http://wiki.xensource.com/xenwiki/DebianDomU Xen-LVM How-To].
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| − | (partial, untested information)
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| − | Presuming your lvm partitions are <code><nowiki>/dev/xen_lvm/dom1</nowiki></code> and <code><nowiki>/dev/xen_lvm/dom1_swap</nowiki></code>
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| − | <pre><nowiki>mkfs.ext3 /dev/xen_lvm/dom1
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| − | mkswap -f /dev/xen_lvm/dom1_swap
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| − | mkdir /xen
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| − | mount -t ext3 /dev/xen_lvm/dom1 /xen</nowiki></pre>
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| − | You can now run debootstrap and install Ubuntu or Debian to /xen
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| − | | + | |
| − | == Installing DomU w/ debootstrap (Partially Tested: please add any additional steps you had to take here) ==
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| − | First, setup and configure lvm, create an ext3 and swap partition in lvm, and mount your lvm partition to /xen.
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| − | <code><nowiki>apt-get install debootstrap</nowiki></code>
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| − | I prefer to install from CD, as it's faster. Mount your CD-Rom to /media/cdrom, and mount your future domU root partition to /xen
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| − | <pre><nowiki>
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| − | debootstrap dapper /xen file:/media/cdrom</nowiki></pre>
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| − | You should see lots of I: messages, and finally the prompt. Change directories to the root directory of your new filesystem.
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| − | | + | |
| − | === Xen configuration options ===
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| − | Using your favorite editor (back in Dom0), create /etc/xen/dom1.cfg with the following text
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| − | <pre><nowiki>kernel = "/boot/vmlinuz-2.6-xen"
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| − | memory = 128
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| − | name = "dom1"
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| − | vif = [ '' ]
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| − | dhcp = "dhcp"
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| − | disk = ['phy:/dev/xen_lvm/dom1,hda1,w','phy:/dev/xen_lvm/dom1_swap,hdb1,w']
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| − | root = "/dev/hda1 ro"
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| − | extra = "4"
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| − | </nowiki></pre>
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| − | === Start the DomU machine ===
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| − | <code><nowiki>xm create dom1.cfg -c</nowiki></code>
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| − | Ignore any <code><nowiki>modprobe: FATAL: Could not load /lib/modules/2.6.16-xen/modules.dep</nowiki></code> errors, they are [http://www.quantact.com/forums/viewtopic.php?t=87&sid=bc7dddfadd3f403231ad4541037bcbbf harmless]
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| − | Login with root, no password (you want to change that!)
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| − | | + | |
| − | === Changes Necessary on the DomU's Filesystem ===
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| − | <code><nowiki>mv ./lib/tls ./lib/tls.disabled</nowiki></code>
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| − | in ./etc/network/interfaces (change the relevant numbers)
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| − | <pre><nowiki>auto lo
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| − | iface lo inet loopback
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| − | auto eth0
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| − | iface eth0 inet static
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| − | address 192.168.3.101
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| − | netmask 255.255.255.0
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| − | network 192.168.3.0
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| − | broadcast 192.168.3.255
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| − | gateway 192.168.3.1
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| − | # dns-* options are implemented by the resolvconf package, if installed
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| − | dns-nameservers 1.2.3.4 1.2.3.5</nowiki></pre>
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| − | Copy the Dom0's sources list: <code><nowiki>cp /etc/apt/sources.list ./etc/apt/sources.list</nowiki></code> and edit them if you wish.
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| − | In ./etc/fstab
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| − | <pre><nowiki># /fstab: static file system information.
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| − | #
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| − | # <file system> <mount point> <type> <options> <dump> <pass>
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| − | proc /proc proc defaults 0 0
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| − | /dev/hda1 / ext3 defaults,errors=remount-ro 0 1
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| − | /dev/hdb1 none swap sw 0 0</nowiki></pre>
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| − | <code><nowiki>umount /dev/xen_lvm/dom1</nowiki></code> (we don't want two operating systems writing to the same partition!)
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| − | Locale setup:
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| − | The locale isn't set up properly by default. Resolve this by:
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| − | <pre><nowiki>
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| − | Install base packages for your language:
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| − | apt-get install language-pack-en-base
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| − | Install/Reconfigure localeconf via either:
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| − | apt-get install localeconf
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| − | dpkg-reconfigure localeconf
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| − | *** Manage locale configuration files with debconf? -> yes
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| − | *** Please select the default system locale. -> Your locale. Mine is en_US ISO-8859-1 for example.
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| − | *** Select the environment settings that should override the default locale. -> Select All
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| − | *** In the following dialogs always select what you set for your locale above.
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| − | Install/reconfigure locales:
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| − | apt-get install locales
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| − | dpkg-reconfigure locales
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| − | *** Here, use the same locale you used in the localeconf setup.
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| − | </nowiki></pre>
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| − | Setting up your hostname:
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| − | <pre><nowiki>
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| − | Manually edit /etc/hostname with your domU hostname.
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| − | Manually edit /etc/hosts (If you used debootstrap, you need to set this file up from scratch.)
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| − | (set the 127.0.0.1 host in /etc/hosts to sync with the host in /etc/hostname)
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| − | </nowiki></pre>
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| − | At this point you want to set up sshd, so you can log into your new virtual machine remotely!
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| − | You are ready!
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| − | == Additional Information ==
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| − | Below are some links to other pages from which I derived this method.
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| − | ** [http://www.xensource.com/xen/documentation/ The Xensource Documentation]
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| − | ** The [http://www.xensource.com/files/xen_user_manual.pdf Xen User's Manual], from that page
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| − | ** XenVirtualMachine/XenOnUbuntuBreezy
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| − | ** XenVirtualMachine/XenOnUbuntuHoary, which explains how to do the same with Ubuntu 5.04.
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| − | ** [http://wiki.xensource.com/xenwiki/InstallationNotes Installation notes]
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| − | [[category:CategoryDocumentation]]
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| | [[category:UbuntuHelp]] | | [[category:UbuntuHelp]] |
