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