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Diffstat (limited to 'system/xen/domU/README.domU')
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diff --git a/system/xen/domU/README.domU b/system/xen/domU/README.domU new file mode 100644 index 0000000000..f060dceece --- /dev/null +++ b/system/xen/domU/README.domU @@ -0,0 +1,57 @@ + HOW TO INSTALL A SLACKWARE DOMU XEN GUEST + +After the ordeal of installing and configuring LILO/GRUB, Xen, kernel-xen +and possibly also a new initrd, editing /etc/rc.d/rc.local and +/etc/rc.d/rc.local_shutdown, and finally booting on your Slackware XenLinux, +you might be wondering how are you to load you guest OS. If you look around, +you might find Xen domU (unprivileged) guest that you can download from the +Internet, but some of us might want to roll their own. This MINI-HOWTO shows +how to install a Slackware domU guest. The fastest way is to mount your +Slackware DVD on /media/SlackDVD, normally this is the mount point chosen by +HAL. Then run the included domU.sh script. + +# ./domU.sh + +This will install Slackware onto an 8GB file called slackware.img and a 500MB +swap file called swap_file. By default, a typical server installation ensues. + +Have a good look at the mydom file as you need to fill in the full path to the +slackware.img and swap_file files. + +Then run the following command: + +# xm create -c mydom + +Your Slackware XenLinux domU should boot instantly. + +Since Xen domU support has been in mainline kernel for a while now, those that +wish to have the best performance can compile a seperate domU kernel based on a +stock Slackware kernel config. +This is what you have to select/unselect when building domU only kernel: + +--- +Processor type and features ---> + [*] Paravirtualized guest support ---> + [*] Xen guest support + +Bus options (PCI etc.) ---> + [ ] PCI support + +Device Drivers ---> + < > Serial ATA and Parallel ATA drivers ---> + SCSI device support ---> + < > SCSI device support +--- + +Disabling SCSI support frees up the /dev/sd* device names for use as Xen +virtual block devices. Basicly, this changes their names from /dev/sd* to a +Xen device name format /dev/xvd*. If this is left enabled, ocasionaly domU can +get stuck in a reboot-loop, with this error: +"XENBUS: Waiting for devices to initialise..." +Naturaly, to get the best performance you can disable everything that you +don't need in domU kernel. + +Note that these files are not intended for a production environment. Users who +have particular requirements will need to set up their own methods, but these +files might provide a good starting point. Refer to the Xen manual and +http://xen.org for more details and options. |