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-rw-r--r--system/xen/domU/README.domU56
-rw-r--r--system/xen/domU/domU.sh76
-rw-r--r--system/xen/domU/mydom10
3 files changed, 142 insertions, 0 deletions
diff --git a/system/xen/domU/README.domU b/system/xen/domU/README.domU
new file mode 100644
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+++ b/system/xen/domU/README.domU
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+ HOW TO INSTALL A SLACKWARE domU XEN GUEST
+
+After the ordeal of installing and configuring LILO/GRUB, Xen, kernel-xen and
+initrd, editing rc.local and 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:
+
+# xl 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 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 a 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.
diff --git a/system/xen/domU/domU.sh b/system/xen/domU/domU.sh
new file mode 100644
index 0000000000..7628f0a7b7
--- /dev/null
+++ b/system/xen/domU/domU.sh
@@ -0,0 +1,76 @@
+#!/bin/sh
+# This Script builds a Slackware domU Xen Guest on a Slackware host,
+# Although it might work correctly, this script is intended as a template, so
+# simplicity is the priority here.
+# Written by Chris Abela <chris.abela@maltats.com>, 20100308
+# Updated by mario <mario@slackverse.org>, 2010-2012
+
+set -e
+
+KERNEL=${KERNEL:-3.2.29}
+
+# Build an image for the root file system and another for the swap
+# Default values : 8GB and 500MB resepectively.
+ROOT_MB=${ROOT_MB:-8000}
+SWAP_MB=${SWAP_MB:-500}
+dd if=/dev/zero of=slackware.img bs=1M count=0 seek=$ROOT_MB
+mkfs.ext4 -F slackware.img
+dd if=/dev/zero of=swap_file bs=1M count=0 seek=$SWAP_MB
+mkswap swap_file
+
+# Make a mountpoint for the root file system and mount it
+mkdir -p mnt
+mount -o loop slackware.img mnt
+
+# Make a mountpoint for proc and mount it
+mkdir -p mnt/proc
+mount --bind /proc mnt/proc
+
+##############################################################################
+# #
+# IMPORTANT : This assumes that you have mounted your Slackware DVD on #
+# /media/SlackDVD #
+# #
+##############################################################################
+
+# This will install a domU with the listed packages
+for i in a ap d e f k l n t tcl; do
+ installpkg --root mnt/ /media/SlackDVD/slackware*/$i/*.t?z
+done
+chroot mnt /sbin/ldconfig
+
+# create fstab
+cat >mnt/etc/fstab <<EOF
+/dev/xvda2 swap swap defaults 0 0
+/dev/xvda1 / ext4 defaults 1 1
+#/dev/cdrom /mnt/cdrom auto noauto,owner,ro 0 0
+/dev/fd0 /mnt/floppy auto noauto,owner 0 0
+devpts /dev/pts devpts gid=5,mode=620 0 0
+proc /proc proc defaults 0 0
+tmpfs /dev/shm tmpfs defaults 0 0
+EOF
+
+chroot mnt /usr/sbin/timeconfig # Set the time
+chroot mnt /sbin/netconfig # Set the network
+chroot mnt /usr/bin/passwd # Set root's password
+
+# Before we could use xencons=tty and leave inittab and securetty files intact,
+# but that stopped working as of Xen-4.x, so this has to be fixed by adding hvc0.
+sed 's/^\(c[1-6]:123\)/#\1/' /etc/inittab
+echo -e '\nc1:12345:respawn:/sbin/agetty 38400 hvc0 linux' >> /etc/inittab
+echo -e '\nhvc0' >> /etc/securetty
+
+# This will save us an alarming (yet harmless) warning
+(cd mnt/lib/modules
+ if [ -d $KERNEL-smp ]; then
+ # for Slack32
+ ln -s $KERNEL-smp $KERNEL-xen
+ else
+ # for Slack64
+ ln -s $KERNEL $KERNEL-xen
+ fi
+)
+
+# unmount proc and the filesystem
+umount mnt/proc
+umount mnt
diff --git a/system/xen/domU/mydom b/system/xen/domU/mydom
new file mode 100644
index 0000000000..72f7f511ef
--- /dev/null
+++ b/system/xen/domU/mydom
@@ -0,0 +1,10 @@
+kernel = "/boot/vmlinuz-xen"
+ramdisk = "/boot/initrd-xen.gz"
+memory = 128
+name = "Slackware"
+vif = [ 'mac=00:16:3e:00:00:01']
+disk = [ 'file:/full_path_to/slackware.img,xvda1,w',
+ 'file:/full_path_to/swap_file,xvda2,w' ]
+root = "/dev/xvda1 ro"
+extra = "3"
+extra = "console=hvc0 elevator=noop"