Difference between revisions of "Installation on other distributions"

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Should this all go well you should be left with the file '''looking-glass-client'''. Before you run the client you will first need to configure either Libvirt or Qemu (whichever you prefer) and then setup the Windows side service.
 
Should this all go well you should be left with the file '''looking-glass-client'''. Before you run the client you will first need to configure either Libvirt or Qemu (whichever you prefer) and then setup the Windows side service.
  
=== Configuring libvirt ===
 
----
 
 
This article assumes you already have a fully functional libvirt VM with PCI Passthrough working on a dedicated monitor. If you do not please ensure this is configured before you proceed.
 
This article assumes you already have a fully functional libvirt VM with PCI Passthrough working on a dedicated monitor. If you do not please ensure this is configured before you proceed.
  
 
'''If you are using QEMU directly, this does not apply to you.'''
 
'''If you are using QEMU directly, this does not apply to you.'''
  
==== Altering the libvirt Configuration ====
+
=== libvirt Configuration ===
 
+
----
 
Add the following to the libvirt machine configuration inside the 'devices' section by running "virsh edit VM" where VM is the name of your virtual machine.
 
Add the following to the libvirt machine configuration inside the 'devices' section by running "virsh edit VM" where VM is the name of your virtual machine.
 
 
<pre style="white-space: pre-wrap;  
 
<pre style="white-space: pre-wrap;  
 
white-space: -moz-pre-wrap;  
 
white-space: -moz-pre-wrap;  
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</pre>
 
</pre>
  
 +
The memory size (show as 32 in the example above may need to be adjusted as per [[Installation#Determining_Memory|Determining Memory]] section.
 +
 +
=== Qemu Commands ===
 +
----
 +
Add the following to the commands to your QEMU command line, adjusting the bus to suit your particular configuration:
 +
<pre style="white-space: pre-wrap;
 +
white-space: -moz-pre-wrap;
 +
white-space: -pre-wrap;
 +
white-space: -o-pre-wrap;
 +
word-wrap: break-word;">
 +
-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 \
 +
-object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M
 +
</pre>
 +
 +
 +
The memory size (show as 32 in the example above may need to be adjusted as per [[Installation#Determining_Memory|Determining Memory]] section.
 +
 +
=== Determining Memory ===
 +
----
 
You will need to adjust the memory size to a value that is suitable for your desired maximum resolution using the following formula:
 
You will need to adjust the memory size to a value that is suitable for your desired maximum resolution using the following formula:
  
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16,588,800 / 1024 / 1024 = 15.82 MB + 2 = 17.82
 
16,588,800 / 1024 / 1024 = 15.82 MB + 2 = 17.82
 
</pre>
 
</pre>
 +
  
 
You must round this value up to the nearest power of two, which with the above example would be 32MB
 
You must round this value up to the nearest power of two, which with the above example would be 32MB
  
It is suggested that you create the shared memory file before starting the VM with the appropriate permissions for your system, this only needs to be done once at boot time, for example (this is a sample script only, do not use this without altering it for your requirements): (Newer versions of LibVirt does this automatically)
+
 
 +
It is suggested that you create the shared memory file before starting the VM with the appropriate permissions for your system, this only needs to be done once at boot time, for example (this is a sample script only, do not use this without altering it for your requirements):
 +
 
 
<code>
 
<code>
 
touch /dev/shm/looking-glass && chown user:kvm /dev/shm/looking-glass && chmod 660 /dev/shm/looking-glass
 
touch /dev/shm/looking-glass && chown user:kvm /dev/shm/looking-glass && chmod 660 /dev/shm/looking-glass
 
</code>
 
</code>
 
=== Configuring QEMU ===
 
----
 
  
 
== Looking Glass Service (Windows) ==
 
== Looking Glass Service (Windows) ==
  
 
== Running the Client ==
 
== Running the Client ==

Revision as of 15:45, 9 October 2019

Looking Glass Client

This guide will step you through building the looking glass client on Debian based systems from source, before you attempt to do this you should have a basic understanding how to use the shell.

Building the Application


Build Dependancies

  • binutils-dev
  • cmake
  • fonts-freefont-ttf
  • libsdl2-dev
  • libsdl2-ttf-dev
  • libspice-protocol-dev
  • libfontconfig1-dev
  • libx11-dev
  • nettle-dev
Debian (and maybe Ubuntu)

apt-get install binutils-dev cmake fonts-freefont-ttf libsdl2-dev libsdl2-ttf-dev libspice-protocol-dev libfontconfig1-dev libx11-dev nettle-dev

Fedora 29+

yum install make cmake binutils-devel SDL2-devel SDL2_ttf-devel nettle-devel spice-protocol fontconfig-devel libX11-devel egl-wayland-devel wayland-devel mesa-libGLU-devel mesa-libGLES-devel mesa-libGL-devel mesa-libEGL-devel

OpenSuSE Leap 15.0+

zypper install make cmake binutils-devel libSDL2-devel libSDL2_ttf-devel libnettle-devel nettle spice-protocol-devel fontconfig-devel libX11-devel libconfig-devel libwayland-egl-devel

Downloading

Either visit the site at Looking Glass Download Page

Or pull the lastest using the git command. git clone https://github.com/gnif/LookingGlass.git

Building

If you downloaded the file via the web link then you should have a 'zip' file. Simply unzip and cd into the new directory. If you used 'git' then cd into the 'LookingGlass' directory.

mkdir build
cd build
cmake ../
make

Should this all go well you should be left with the file looking-glass-client. Before you run the client you will first need to configure either Libvirt or Qemu (whichever you prefer) and then setup the Windows side service.

This article assumes you already have a fully functional libvirt VM with PCI Passthrough working on a dedicated monitor. If you do not please ensure this is configured before you proceed.

If you are using QEMU directly, this does not apply to you.

libvirt Configuration


Add the following to the libvirt machine configuration inside the 'devices' section by running "virsh edit VM" where VM is the name of your virtual machine.

<shmem name='looking-glass'>
  <model type='ivshmem-plain'/>
  <size unit='M'>32</size>
</shmem>

The memory size (show as 32 in the example above may need to be adjusted as per Determining Memory section.

Qemu Commands


Add the following to the commands to your QEMU command line, adjusting the bus to suit your particular configuration:

-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 \
-object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M


The memory size (show as 32 in the example above may need to be adjusted as per Determining Memory section.

Determining Memory


You will need to adjust the memory size to a value that is suitable for your desired maximum resolution using the following formula:

width x height x 4 x 2 = total bytes
total bytes / 1024 / 1024 = total megabytes + 2

For example, for a resolution of 1920x1080 (1080p)

1920 x 1080 x 4 x 2 = 16,588,800 bytes
16,588,800 / 1024 / 1024 = 15.82 MB + 2 = 17.82


You must round this value up to the nearest power of two, which with the above example would be 32MB


It is suggested that you create the shared memory file before starting the VM with the appropriate permissions for your system, this only needs to be done once at boot time, for example (this is a sample script only, do not use this without altering it for your requirements):

touch /dev/shm/looking-glass && chown user:kvm /dev/shm/looking-glass && chmod 660 /dev/shm/looking-glass

Looking Glass Service (Windows)

Running the Client