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Install mono on centOS 6.x
$ yum install bison gettext glib2 freetype fontconfig libpng libpng-devel libX11 libX11-devel glib2-devel libgdi* libexif glibc-devel urw-fonts java unzip gcc gcc-c++ automake autoconf libtool make bzip2 wget
$ cd /usr/local/src
$ wget http://download.mono-project.com/sources/mono/mono-3.2.8.tar.bz2
$ tar jxf mono-3.2.8.tar.bz2
$ cd mono-3.2.8
$ ./configure --prefix=/opt/mono
$ make && make install
$ export PATH=$PATH:/opt/mono/bin
$ export PKG_CONFIG_PATH=/opt/mono/lib/pkgconfig
$ # make sure to add the previous two lines to your ~/.bash_profile
@MaLaCoiD

This worked with mono-3.12.0 on CentOS6. Thank you!

@gilaxone
gilaxone commented Apr 9, 2015

Same here, build complete with mono-3.12.1 on CentOS6, thank you very much

@sunil-linux

It worked with me too. But i dont understand why do we need to install the java,unzip package as you have mentioned as dependency.

@tomcatzh
tomcatzh commented Jun 5, 2015

It doesn't work on Centos 5.11, report a compile error with -fPIC

@Miirek
Miirek commented Sep 4, 2015

Worked for me with mono mono-4.0.3 @ CentOS release 6.7 (Final)

@mikecastrodemaria

ok for me on Centos 6.6 and mono : http://download.mono-project.com/sources/mono/

Just get error on yum lib install :
Erreur : Paquet : libgdiplus0-3.12-1.x86_64 (download.mono-project.com_repo_centos_)
Requiert : libpng15.so.15()(64bit)
Erreur : Paquet : libgdiplus0-3.12-1.x86_64 (download.mono-project.com_repo_centos_)
Requiert : libtiff.so.5()(64bit)
Erreur : Paquet : libgdiplus0-3.12-1.x86_64 (download.mono-project.com_repo_centos_)
Requiert : libtiff.so.5(LIBTIFF_4.0)(64bit)
Erreur : Paquet : libgdiplus0-3.12-1.x86_64 (download.mono-project.com_repo_centos_)
Requiert : libpng15.so.15(PNG15_0)(64bit)
Erreur : Paquet : libgdiplus0-3.12-1.x86_64 (download.mono-project.com_repo_centos_)
Requiert : libc.so.6(GLIBC_2.14)(64bit)

@Pegazux
Pegazux commented Sep 12, 2015

Worked for me with mono mono-4.0.4 @ CentOS release 6.7 (Final)

@firstygoldfish

Worked with 4.2.1.36 on Centos 6.6 Final (with the obvious script changes for version)

Also, to install XSP I had to:
cd /usr/local/src
wget http://origin-download.mono-project.com/sources/xsp/xsp-3.8.tar.gz
tar zxvf xsp-3.8.tar.gz
cd xsp-3.8

When I ran configure this failed so:
cd /opt/mono/bin
ln -s mcs ./gmcs

Back to the compile:
cd -
./configure --prefix=/opt/mono
make && make install

Then assuming /opt/mono is on you path
xsp4 --port 9000
will start the server.

When I tried to use a test calendar script:

<%@ Page Language="C#" %>
<html>
<head>
   <title>Sample Calendar</title>
</head>
<asp:calendar showtitle="true" runat="server">
</asp:calendar>

I got an error about LIBGDIPLUS not found. I installed this and tried again. Still the same error.
The libgdiplus.so library went into /usr/local/lib which isn't default for ldconfig.

vi /etc/ld.so.conf
add a new line for /usr/local/lib
run 'ldconfig' as root.
Run 'ldconfig -p | grep libgdiplus' to test it find it and stop and start the XSP server again.

All working so far .... Hope this helps someone.

@robozeri
robozeri commented Dec 3, 2015

thanks

@allisterb

Works for Mono 4.2.2 on CentOS 7. Thanks a lot.

@kimhs20
kimhs20 commented Feb 16, 2016

Works for Mono 3.12.1 on CentOS 6.3...

@kimhs20
kimhs20 commented Feb 16, 2016

Wow! works Mono 4.2.2.30 on CentOS 6.3.. Great

@avarabei
avarabei commented Apr 6, 2016

@kimhs20 which monolite version have you used? I get this error all the time:

*** The compiler 'mcs' doesn't appear to be usable.
*** Trying the 'monolite' directory.
Bootstrap compiler: Mono C# compiler version 4.3.2.0
./../jay/jay: 8 shift/reduce conflicts.
mkdir -p -- ../class/lib/basic/
MCS     [basic] basic.exe
warning CS8001: SDK path could not be resolved
warning CS1685: The predefined type 'System.Security.Permissions.HostProtectionAttribute' is defined multiple times. Using definition from 'mscorlib.dll'
/usr/local/src/mono-4.2.2/mcs/class/lib/monolite/mscorlib.dll (Location of the symbol related to previous warning)
/usr/local/src/mono-4.2.2/mcs/class/lib/monolite/System.dll (Location of the symbol related to previous warning)

Unhandled Exception:
System.InvalidCastException: Arg_InvalidCastException
  at System.Collections.Generic.EnumEqualityComparer'1[T].Equals (T x, T y) <0x41339f80 + 0x00046> in <filename unknown>:0
  at System.Collections.Generic.List'1[T].Contains (System.Collections.Generic.T item) <0x413393f0 + 0x0009f> in <filename unknown>:0
  at Mono.CSharp.TypeDefinition.CheckPairedOperators () <0x41338e40 + 0x0014b> in <filename unknown>:0
  at Mono.CSharp.TypeDefinition.DoDefineMembers () <0x4131cb70 + 0x00c67> in <filename unknown>:0
  at Mono.CSharp.ClassOrStruct.DoDefineMembers () <0x4131c6e0 + 0x0022f> in <filename unknown>:0
  at Mono.CSharp.Class.DoDefineMembers () <0x4131c000 + 0x0068f> in <filename unknown>:0
  at Mono.CSharp.TypeDefinition.Define () <0x4131bad0 + 0x0002c> in <filename unknown>:0
  at Mono.CSharp.TypeContainer.Define () <0x4131b9e0 + 0x0005a> in <filename unknown>:0
  at Mono.CSharp.TypeContainer.Define () <0x4131b9e0 + 0x0005a> in <filename unknown>:0
  at Mono.CSharp.TypeContainer.Define () <0x4131b9e0 + 0x0005a> in <filename unknown>:0
  at Mono.CSharp.ModuleContainer.Define () <0x41304c00 + 0x00027> in <filename unknown>:0
  at Mono.CSharp.Driver.Compile () <0x412496b0 + 0x00634> in <filename unknown>:0
  at Mono.CSharp.Driver.Main (System.String[] args) <0x4121ce00 + 0x00173> in <filename unknown>:0
@avarabei
avarabei commented Apr 7, 2016

just succeed to make mono-4.4.0.40 with monolite 140: http://download.mono-project.com/monolite/monolite-140-latest.tar.gz

it was required to install monolite right after configure ( "./autogen.sh --prefix=/opt/mono" ):

make get-monolite-latest monolite_url=http://download.mono-project.com/monolite/monolite-140-latest.tar.gz

P.S. CentOS 6.7

@lucieparietti

The installation worked with Mono 4.2.3.4 on RHEL 6. Thank you!
I am a newbie at Linux. I'd like to compile a C# code just to test my Mono installation. If I type, $ cms HelloWorld.cs from a terminal window, I am getting an error message "bash: cms: command not found". How can I start Mono? Please help.

@ektrontek

Dear all,
I can finish the install setup in Centos6.6, but I can not run aspx website in apache
https://drive.google.com/file/d/0BxriXuT0xeaFcl9KOGZ2YXROYUk/view?usp=sharing
Or how can we setup mono for aspx file normal running in Centos? Thanks a lot.

@schm3tterling
schm3tterling commented Feb 13, 2017 edited

I was able to to install mono 4.9 and xsp 4.2. on CentOS release 6.8 (Final) based on your instructions, thanks!

I also got the error I got an error about LIBGDIPLUS not found because for some reason this would not install. I installed it from

http://download.mono-project.com/sources/libgdiplus/

using the commands below and it ran successfully.

cd /usr/local/src
wget http://download.mono-project.com/sources/libgdiplus/libgdiplus-4.2.tar.gz
tar zxvf libgdiplus-4.2.tar.gz
cd libgdiplus-4.2
./configure --prefix=/opt/mono
make && make install

Hope this helps someone else and thanks again.

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