From 2e952e8ae40eaf147b6cba822411db93a8ee9190 Mon Sep 17 00:00:00 2001
From: Silvino Silva <silvino@bk.ru>
Date: Fri, 23 Sep 2016 05:38:00 +0100
Subject: Final revision 0.2.2

---
 tools/qemu.html | 83 +++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 54 insertions(+), 29 deletions(-)

(limited to 'tools/qemu.html')

diff --git a/tools/qemu.html b/tools/qemu.html
index 68850e7..ce1b66d 100644
--- a/tools/qemu.html
+++ b/tools/qemu.html
@@ -12,6 +12,14 @@
 
         <h2 id="kern">1. Host System</h2>
 
+        <p>Load modules, in this case kvm of intel cpu;</p>
+
+        <pre>
+        # modprobe -a kvm-intel tun virtio
+        </pre>
+
+        <p>Add users to kvm group;</p>
+
         <pre>
         # usermod -a -G kvm c9admin
         # usermod -a -G kvm username
@@ -42,40 +50,51 @@
         $ sudo qemu-nbd -c /dev/nbd0 /crux-img.qcow2
         </pre>
 
-        <p>To disconnect image disk (ndb);</a>
+        <p>To disconnect image disk (ndb);</p>
 
         <pre>
         $ sudo qemu-nbd -d /dev/nbd0
         </pre>
 
-        <p>You can use image as a normal disk, example how
+        <p>Information about preparing
+        <a href="../core/install.html#step2">partitions</a>
+        and <a href="storage.html">storage</a> administration.
+        You can use image as a normal disk, example how
         to use parted to create a gpt system table;</p>
 
         <pre>
         # parted /dev/nbd0
         (parted) mklabel gpt
+        (parted) mkpart ext4 0% 100%
+        (parted) set 1 boot on
         </pre>
 
-        <p>More information about
-        <a href="http://devil-detail.blogspot.pt/2013/07/install-grub2-on-gpt-disk-dedicated-partition.html">gpt partition table</a>.
-        </p>
+        <pre>
+        # kpartx -a -s -l -u /dev/nbd0
+        </pre>
 
-        <p>If partitions are on qcow2 image then setup partitions;</p>
+        <pre>
+        # mkfs.ext4 /dev/mapper/nbd0p1
+        </pre>
+
+        <p>Mount partition;</p>
 
         <pre>
-        # kpartx -a -s -l /dev/nbd0
+        # mount /dev/mapper/nbd0p1
         </pre>
 
         <h2 id="net">2. Network</h2>
 
         <p>Network configuration;</p>
+
         <dl>
             <dt>slirp</dt>
-            <dd>network slirp</dd>
+            <dd>Default virtual NAT'd network.</dd>
             <dt>tun/tap</dt>
-            <dd>network tap</dd>
-            <dt>...</dt>
-            <dd>... ...</dd>
+            <dd>Good performance to create virtually any type of network
+            topology.</dd>
+            <dt>vde</dt>
+            <dd>The VDE networking backend.</dd>
         </dl>
 
 
@@ -90,7 +109,7 @@
         you can set only user or group;</p>
 
         <pre>
-        # tunctl -u username -g kvm
+        # tunctl -u username -g kvm -t tap0
         </pre>
 
         <p>Set permissions to existing tap interface;</p>
@@ -102,12 +121,24 @@
 
         <p>Manual creation of tap interface;</p>
 
-	<pre>
-	# ip tuntap add name tap0 mode tap
+        <pre>
+        # ip tuntap add name tap0 mode tap
         # chmod 0666 /dev/tap0
         # chown root:username /dev/tap0
-	# ip link show
-	</pre>
+        </pre>
+
+        <pre>
+        # ip addr add 10.0.2.1/24 dev tap0
+        # ip link set dev tap0 up
+        # ip link show
+        </pre>
+
+        <pre>
+        # sysctl -w net.ipv4.ip_forward=1
+        # iptables -t nat -A POSTROUTING -s 10.0.2.0/24 -o eth0 -j MASQUERADE
+        </pre>
+
+        <h2 id="guest">Guest System</h2>
 
         <p>Start qemu with 512 of ram, mydisk.img as disk and boot from iso</p>
 
@@ -117,25 +148,19 @@
         -m 512 \
         -boot d -cdrom image.iso \
         -hda mydisk.img
-    	</pre>
+        </pre>
 
         <p>Start qemu with 1024 of ram, network configured using tap0
         interface device no host and boot from crux.qcow2;</p>
 
-	<pre>
-	$ qemu-system-x86_64 \
-	-enable-kvm \
-	-m 1024 \
-	-hda c9/local/crux.qcow2 \
-	-net nic,model=virtio -net tap,ifname=tap0,script=no,downscript=no
+        <pre>
+        $ qemu-system-x86_64 \
+        -enable-kvm \
+        -m 1024 \
+        -hda c9/local/crux.qcow2 \
+        -net nic,model=virtio -net tap,ifname=tap0,script=no,downscript=no
         </pre>
 
-	<p>On host machine test network;</p>
-
-	<pre>
-	# tcpdump tap0
-	</pre>
-
         <a href="index.html">Tools Index</a>
         <p>This is part of the c9 Manual.
         Copyright (C) 2016
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