...
Designed to be command line compatible with xend. TODO: does it have an xm command?
On Debian 7 WhhezyWheezy:
root@SON-OF-blav.bluelightav:~# type xl xl is /usr/sbin/xl root@SON-OF-blav.bluelightav:~# ll /usr/sbin/xl lrwxrwxrwx 1 root root 43 May 5 2013 /usr/sbin/xl -> ../lib/xen-common/bin/xen-toolstack-wrapper
...
- The shell runs /usr/sbin/xl which is a symlink to /usr/lib/xen-common/bin/xen-toolstack-wrapper
- /usr/lib/xen-common/bin/xen-toolstack-wrapper:
- Sources /usr/lib/xen-common/bin/xen-toolstack to set TOOLSTACK to /usr/lib/xen-4.1/bin/xl
- Sources /usr/lib/xen-common/bin/xen-dir to set dir to /usr/lib/xen-4.1
- Sources /usr/lib/xen-common/bin/xen-version to set VERSION to 4.1
- /usr/lib/xen-common/bin/xen-version gets Xen version info from /sys/hypervisor/version/*
- Sets PATH to /usr/lib/xen-4.1/bin
- Sources /etc/default/xen to set TOOLSTACK to xl (would fall back to hardcoded default otherwise)
- Sets TOOLSTACK to /usr/lib/xen-4.1/bin/xl
execs /usr/lib/xen-4.1/bin/xl
When root runs command xm (does not work):
- The shell runs /usr/sbin/xm which is a symlink to /usr/lib/xen-common/bin/xen-toolstack-wrapper
- /usr/lib/xen-common/bin/xen-toolstack-wrapper:
- Sources /usr/lib/xen-common/bin/xen-toolstack to set TOOLSTACK to /usr/lib/xen-4.1/bin/xl
- Sources /usr/lib/xen-common/bin/xen-dir to set dir to /usr/lib/xen-4.1
- Sources /usr/lib/xen-common/bin/xen-version to set VERSION to 4.1
- /usr/lib/xen-common/bin/xen-version gets Xen version info from /sys/hypervisor/version/*
- Sets PATH to /usr/lib/xen-4.1/bin
- Sources /etc/default/xen to set TOOLSTACK to xl
...
- (would fall back to hardcoded default otherwise)
- Sets TOOLSTACK to /usr/lib/xen-4.1/bin/xl
- Generates message "ERROR: A different toolstack (xl) have been selected!"
Configuration
DomU*
Networking
...
Primary reference (no Xen 4.x equivalent found): http://wiki.xen.org/wiki/XenIntro
Debian packages
libxen-4.1
Includes /usr/lib/libxenctrl-4.1.so and /usr/lib/libxenguest-4.1.so
libxenstore3.0
Includes /usr/lib/libxenstore.so.3.0.0 and /usr/lib/libxenstore.so.3.0
xen-hypervisor-4.1-amd64
Includes /boot/xen-4.1-amd64.gz
xen-linux-system-3.2.0-4-amd64
Documentation only.
xen-linux-system-amd64
Documentation only.
xen-system-amd64
Documentation only.
xen-tools
Tools that work with the xm and xl toolstacks to administer Xen config files and images.
Provides (in /usr/bin):
- xt-customize-image
- xt-create-xen-config
- xen-list-images
- xen-delete-image
- xt-install-image
- xen-create-nfs
- xen-create-image
- xt-guess-suite-and-mirror
- xen-update-image
...
Logs in the /var/log/xen-tools/ directory.
References
- Xen-Tools.org documentation: http://xen-tools.org/software/xen-tools/
- Xen-Tools.org FAQ: http://xen-tools.org/software/xen-tools/faq.html
- Xen Project Community Blog: Xen-Tools page: http://blog.xen.org/index.php/2012/08/31/xen-tools-a-straightforward-vm-provisioninginstallation-tool/
xen-utils-4.1
Provides (in /usr/lib/xen-4.1/bin/):
...
- /usr/lib/xen-4.1/lib/
- /usr/lib/xen-4.1/boot/hvmloader
xen-utils-common
Provides:
- /etc/default/xend
- /etc/default/xendomains
- /etc/init.d/xen
- /etc/init.d/xendomains
- /etc/xen/scripts/*
- /etc/xen/xend-config.sxp
- /etc/xen/xend-pci-permissive.sxp
- /etc/xen/xend-pci-quirks.sxp
- /etc/xen/xl.conf
- /lib/udev/rules.d/xen-backend.rules
- /lib/udev/rules.d/xend.rules
- /usr/lib/xen-common/bin/*
- /usr/sbin/cpuperf-perfcntr
- /usr/sbin/cpuperf-xen
- /usr/sbin/xe
- /usr/sbin/xenperf
- /usr/sbin/xenpm
- /usr/sbin/xentop
- /usr/sbin/xentrace
- /usr/sbin/xentrace_format
- /usr/sbin/xentrace_setmask
- /usr/sbin/xentrace_setsize
- /usr/sbin/xl
- /usr/sbin/xm
- /usr/share/xen-utils-common/default.xen
xenstore-utils
Provides (all in /usr/sbin):
- xenstore-ls
- xenstore-write
- xenstore-exists
- xenstore-rm
- xenstore-chmod
- xenstore-watch
- xenstore-list
- xenstore-read
References
Documentation
- Wikipedia: http://en.wikipedia.org/wiki/Xen
- Debian Wiki Xen page (in draft): https://wiki.debian.org/Xen
- Xen Project Beginners Guide: http://wiki.xenproject.org/wiki/Xen_Beginners_Guide#Setup_Linux_Bridge_for_guest_networking
- Xen On Debian Wheezy With LVM (HowtoForge. Has bridge example with fixed IP): http://www.howtoforge.com/xen-on-debian-wheezy-with-lvm
- Using Xen With LVM-Based VMs Instead Of Image-Based VMs (HowtoForge. Etch): http://www.howtoforge.com/using-xen-with-lvm-based-vms-instead-of-image-based-vms-debian-etch
- Debian Wheezy -> Jessie and set up Xen (HowtoForge): http://www.howtoforge.com/how-to-set-up-xen-4.3-on-debian-wheezy-7.0.2-and-then-upgrade-to-jessie
- Setting up XEN on a Hetzner Dedicated Server: https://gist.github.com/meskyanichi/3354956
- Routed XEN VM based on LVM (step-by-step for Hetzner DS3000): http://wiki.summercode.com/routed_xen_vm_based_lvm_step_by_step_guide_for_hetzner_ds3000
- XPSU13 VIDEO: Xen for Beginners (49 min): http://www.xenproject.org/help/presentations-and-videos/video/latest/xpus13-beginners.html
- Xen on 4 app servers: http://wiki.xenproject.org/wiki/Xen_on_4_app_servers
- Debian Guest Installation Using Debian Installer: http://wiki.xen.org/wiki/Debian_Guest_Installation_Using_Debian_Installer
- The Debian Administrator's Handbook, Virtualisation chapter (covers domU* creation using xen-tools): http://debian-handbook.info/browse/stable/sect.virtualization.html
- How to install Xen in Debian (Armen's Wiki. Has scripts for both public and private IPs for virtual machines): http://vardump.org/wiki.php/HowToInstallXenInDebianGNULinux.
- Network Configuration Examples (Xen WIKI): http://wiki.xen.org/wiki/Host_Configuration/Networking
- Bridging Network Connections (Debian WIKI): https://wiki.debian.org/BridgeNetworkConnections