Difference between revisions of "CentOS"

Revision as of 09:29, 11 March 2015

The intent of this walk through is to install a very base/bare bones installation of CentOS that runs only ZoneMinder. This would be for a dedicated ZoneMinder server with no GUI or any unnecessary services running. The reason for the very light-weight installation is to make the majority of system resources available to ZoneMinder, not the OS. With this installation, memory is reduced to around 140-160MB, and CPU usage is practically nonexistent. The CentOS base installation is very easy to install and doesn’t take too much time as long as you have some type of broadband connection. There are many ways to install CentOS, but this article covers only two, because they are related.

All CLI operations/commands in this How-To are done as root, in the /root directory. The reasoning is that this system would be in a secure environment to begin with. However, if you need to add a user to run these services to better secure the system, then you can, but keep in mind that some items must run as root.

Zmrepo - A ZoneMinder repository for RPM based distros

The ZoneMinder development team would like to introduce you to a new, easier way to install ZoneMinder on CentOS. Zmrepo is meant to be a turn-key solution. There is no compiling, no installing modules from CPAN, and no more complicated repository instructions.

This repository brings together a ZoneMinder rpm built by the development team, with all features enabled. It also includes all dependencies that are not found in the default CentOS repositories. A few Perl modules are built by us, but all the rest of the dependencies are mirrored from popular sites such as EPEL and RPMFusion. There is no longer a need to add these additional repositories to your system. Zmrepo takes care of that for you.

Who Should Use

The development team strictly uses CentOS, but these packages should work on Red Hat Enterprise Linux and Scientific Linux. The rpms in zmrepo are intended to work with default installations of these Linux distributions. Modified versions are not guaranteed to work. Continue to the Disclaimer below for details.

Please report any issues with RHEL and SL, as we have no way of pro-actively discovering them.

Disclaimer

This could also be appropriately called Who should not Use zmrepo.

The goal behind CentOS is that of an enterprise operating system. Stability is prioritized over the latest and greatest version of a particular package. Fortunately, bug fixes are backported. Consequently, you should never replace the core packages in CentOS! If you truly think that you "have to have" some package that is newer than what is found in the default repository then you should consider using a different Linux distro.

The CentOS maintainers have a great write-up that describes this in much more detail here. Pay close attention to the all the do's, dont's, and "this will break" comments.

Zmrepo extends this same philosophy onto ZoneMinder. While ZoneMinder requires many dependencies to work, zmrepo will not overwrite any core packages. It only adds packages that, otherwise, would not be available.

One other case is worth mentioning. This repository is intended only for those who have installed RHEL/CentOS/SL using the official installation media for that distribution! This means that these rpms are not intended to work with third parties that release their own spin of CentOS, which contain their own third party application preinstalled. Third parties are allowed to modify the original distribution in any way, which means we can't guarantee the rpms in zmrepo will be compatible.

For example, if you installed "CentOS" using an installation disk from an Astericks vendor, then the rpms in zmrepo are known not to work.

Installation

Installation Instructions for i386 or x86_64 architectures on CentOS 6:

wget http://zmrepo.zoneminder.com/el/6/i386/zmrepo-6-4.el6.noarch.rpm
sudo yum install --nogpgcheck zmrepo-6-4.el6.noarch.rpm
sudo yum install zoneminder
less /usr/share/doc/zoneminder-*/README.CentOS

You must complete the steps documented in README.CentOS before ZoneMinder will function correctly.

NOTE: RHEL users must enable the "rhel-6-server-optional-rpms" repositoy on their system before attempting to install ZoneMinder.

A YouTube video that steps through the installation can be viewed here.

Installation Instructions for x86_64 architecture (only) on CentOS 7:

wget http://zmrepo.zoneminder.com/el/7/x86_64/zmrepo-7-3.el7.centos.noarch.rpm
sudo yum install --nogpgcheck zmrepo-7-3.el7.centos.noarch.rpm
sudo yum install zoneminder
less /usr/share/doc/zoneminder-*/README.Centos7

You must complete the steps documented in README.Centos7 before ZoneMinder will function correctly.

WARNING: CentOS 7 support is still being developed. This repo is currently not for production and might not yet be error free.

CentOS 5.6 & ZoneMinder 1.25.0

This guide is for CentOS v5.6 (Notes for using this guide with CentOS 6 are in chapter 2.) with ZoneMinder v1.25.0 which are the newest released versions as of this update (Summer 2011). If you are attempting to install newer versions of either using this guide, you will have to adjust file and directory names denoted below.

Step One - Get CentOS

You can download the “.iso” file(s) for CentOS from http://www.centos.org/
Alternatively download the net-install version of CentOS which is basically just the first CD. Here is one location to download the net-install version:
Download i386: http://mirror.symnds.com/distributions/CentOS-vault/5.6/isos/i386/CentOS-5.6-i386-netinstall.iso
Download 64 bit: http://mirror.symnds.com/distributions/CentOS-vault/5.6/isos/x86_64/CentOS-5.6-x86_64-netinstall.iso
Mirrors List: http://mirror.centos.org/centos/5/isos/

Step Two - Installation Source

Regardless of which method you use, the next few steps are the same.
Begin by booting your system up with either cd/dvd.
Choose the options that best fit your environment until you reach the “Installation Method”.

Choose HTTP ONLY if you are using the net-install method. Otherwise, you probably want to choose Local CDROM.

If you are using the net-install method then enter:
Website Name: mirror.centos.org
CentOS Directory: (for i386) /centos/5.6/os/i386
CentOS Directory: (for 64 bit) /centos/5.6/os/x86_64

Step Three - Installation Packages

On the first screen, un-check "Desktop - Gnome" then check "Server" (not Server-GUI)
Make sure that you have "Customize now" selected at the bottom. (do not check "Packages from CentOS Extras")

Click "Next" to continue

Once presented with the custom package selection, un-check/check the following:

Applications = Check only "Editors" and "Text Based Internet"
Development = Check only "Development Libraries" and "Development Tools"
Servers = Un-check everything
Base System = Check only "Base" (you can check Administration Tools and System Tools if you need them, but they are not necessary)

Now let the system finish the installation.

Step Four - Configuration

After the first reboot, the setup screen should appear. If not, log into the system and type "setup"

Select "Firewall Configuration" and set the "Security Level" and "SELinux" to "Disabled."

Next, we are going to disable a number of system services. Go back to the setup screen and select "System Services"
Un-Check:

apmd
bluetooth
cups
hidd
ip6tables
iptables
netfs
nfslock
pcscd
portmap

After disabling the services, select "Disable Now and On Boot", exit the setup tool, and log into the system if you haven't already.

Screen is a simple program that allows you to run commands from a "Hosted" command line interface. This helps if you loose your connection to the server for any reason in that it enables you to resume (screen -r) right where you left off. Often times, I will start a large update/upgrade, leave it for the day, then come back and see where it's at later. Screen allows you to do that without having to be connected.
Install Screen

yum install screen

To start a screen session just type

screen

If you get disconnected and need to resume your session of screen simply type

screen -r

Step Five - Installing ZoneMinder 1.25.0

First, we need to download files and prepare the system

Add the RPM Forge repository to CentOS. This will allow the installation of a number of services/applications later without having to manually install them.

# For i386 CentOS 5.x run:
rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm

# For 64 bit CentOS 5.x run:
rpm -Uhv http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm

Download the needed files, ZoneMinder 1.25.0 and the Cambozola addon

wget http://www2.zoneminder.com/downloads/ZoneMinder-1.25.0.tar.gz
wget http://www.zoneminder.com/sites/zoneminder.com/downloads/cambozola.jar

Now let's install all the services and programs that will be needed (If you encounter any dependency errors using yum, try running yum clean all then re-try the install command(s).)

tip: Copy/paste two lines at a time

yum -y install mysql mysql-server mysql-devel php php-gd php-mysql httpd gcc \
pcre-devel gd mod_ssl glib2-devel gcc-c++ ntp gnutls-devel ImageMagick

yum -y install libjpeg-devel perl-Archive-Tar perl-MIME-Lite perl-MIME-tools \
perl-Date-Manip perl-LWP-UserAgent-Determined

yum -y install perl-PHP-Serialization perl-Device-SerialPort perl-Archive-Zip perl-Sys-Mmap \
perl-Module-Load subversion git yasm bzip2 bzip2-devel bzip2-libs lbzip2

Now let's update everything within the new CentOS install

yum -y update

At this point, it might be useful to reboot your system. Oddly, sometimes things don't work right unless you reboot after all the updates

reboot   -or-   shutdown -r now

After rebooting, log into your system

Install ffmpeg

Now we need to make sure we use the latest "tested" version of "ffmpeg". This is the latest version of ffmpeg that the ZoneMinder developers have tested with. Download, compile and install ffmpeg:

git clone git://git.videolan.org/ffmpeg.git
cd ffmpeg
./configure --enable-gpl --enable-shared --enable-pthreads
make

The following commands must be done as root

make install 
make install-libs

edit /etc/ld.so.conf and add the line "/usr/local/lib"

ldconfig -v

Next, run 'ffmpeg' from the command line. Make sure you do not get any errors:

ffmpeg

If 'ffmpeg' runs correctly, you'll see something similar to this:

ffmpeg version N-32260-gaebb56e, Copyright (c) 2000-2011 the FFmpeg developers
  built on Aug 31 2011 21:41:49 with gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
  configuration: --enable-shared --enable-swscale --enable-gpl --enable-pthreads
  libavutil    51. 14. 0 / 51. 14. 0
  libavcodec   53. 12. 0 / 53. 12. 0
  libavformat  53. 10. 0 / 53. 10. 0
  libavdevice  53.  3. 0 / 53.  3. 0
  libavfilter   2. 37. 0 /  2. 37. 0
  libswscale    2.  0. 0 /  2.  0. 0
  libpostproc  51.  2. 0 / 51.  2. 0
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'

Enable services

Turn everything on. These commands must be run as root.

 chkconfig httpd on 
 chkconfig mysqld on 
 chkconfig ntpd on 
 service httpd start 
 service mysqld start 
 service ntpd start

Install Zoneminder

Next, we need to extract the contents of the ZoneMinder "tar" file, then jump into its directory.

 cd /root/  # Or your work directory for this installation
 tar -zxvf ZoneMinder-1.25.0.tar.gz
 cd ZoneMinder-1.25.0

Now we are going to configure ZoneMinder with some additional parameters. What is listed are the default CentOS directory locations.

./configure --with-webdir=/var/www/html/zm --with-cgidir=/var/www/cgi-bin

Note: It seems for Zoneminder to build with newer versions of ffmpeg, (certainly 0.6.3) you'll need to append CPPFLAGS="-D__STDC_CONSTANT_MACROS" to the end of the ./configure line thus:

./configure --with-webdir=/var/www/html/zm --with-cgidir=/var/www/cgi-bin --with-ffmpeg=/usr/local/share/ffmpeg CPPFLAGS="-D__STDC_CONSTANT_MACROS"

There is a section in the FAQ "When running configure, I get a lot of messages about not being able to compile the ffmpeg libraries" about this [[1]].

Worth mentioning here is the section in the FAQ under the heading "My load is too high, how can I reduce it?" [[2]]. This descibes how you can possibly reduce CPU load by half by changing the system's jpeg libraries and building Zoneminder with processor specific instructions. Since CentOS 6.4 CentOS now comes with libjpeg_turbo as the standard JPEG library leading to a more optimised Zoneminder.

By default ZM_DB_HOST=localhost, ZM_DB_NAME=zm, ZM_DB_USER=zmuser, and ZM_DB_PASS=zmpass.

Change "zmuser" (if you want) with the user that you will use within MySQL to access the ZoneMinder database
Change "zmpass" with the password you will be using with the "zmuser" account

So if you wish to change it, use a command like:

./configure --with-webdir=/var/www/html/zm --with-cgidir=/var/www/cgi-bin --with-webuser=apache --with-webgroup=apache ZM_DB_HOST=localhost ZM_DB_NAME=zm ZM_DB_USER=zmuser ZM_DB_PASS=zmpass

if you get the configure "error zm requires libmysqlclient.a" with 64 bit CentOS add the following to the end of your configure statement

 --with-extralibs="-L/usr/lib64 -L/usr/lib64/mysql"

e.g. For CentOS 5.6 64-bit with support for ffmpeg. The whole command must be executed on one line. Make sure to change the zmpass to a password that matches your installation.

./configure --with-webdir=/var/www/html/zm --with-cgidir=/var/www/cgi-bin --with-ffmpeg=/usr/local/share/ffmpeg --with-webuser=apache --with-webgroup=apache ZM_DB_HOST=localhost ZM_DB_NAME=zm ZM_DB_USER=zmuser ZM_DB_PASS=zmpass --with-extralibs="-L/usr/lib64 -L/usr/lib64/mysql" CXXFLAGS="-D__STDC_CONSTANT_MACROS"

Run make and make install after running the configuration steps above.

make
# Run the next command as root
make install

Configure MySQL

Need to add a password for the root user of MySQL
Create the zm database
Create the zm database user with permissions and password

mysql
mysql> SET PASSWORD FOR root@localhost=PASSWORD('new_root_password');

>Query OK, 0 rows affected (0.00 sec)

mysql> create database zm;

>Query OK, 1 row affected (0.01 sec)

mysql> CREATE USER 'your_zm_user'@'localhost' IDENTIFIED BY 'your_zm_password_from_above';

Query OK, 0 rows affected (0.01 sec)

mysql> grant CREATE, INSERT, SELECT, DELETE, UPDATE on zm.* to your_zm_user@localhost;

>Query OK, 0 rows affected (0.02 sec)

mysql> exit

>Bye

Import the tables into the zm database

cd /root/ZoneMinder-1.25.0 
mysql -u root -p zm < db/zm_create.sql

Finalize Installation of ZoneMinder

All remaining CLI commands need to be run as root.

Make ZoneMinder startup automatically after a reboot

# from the ZoneMinder-1.25 source directory
cp scripts/zm /etc/init.d/
chmod +x /etc/init.d/zm
chkconfig zm on

Add the Cambozola Java web interface

cp cambozola.jar /var/www/html/zm/

Make sure you have permission to view it from apache:

chown apache:apache /var/www/html/zm/cambozola.jar

Start ZoneMinder

service zm start

Note: You may get an error when you try to start Zoneminder using the 'zm' startup script as per this forum post: [[3]] . The reason for this was the default 'zm' startup script was formatted with DOS line endings. If you get the errors as detailed in the above post then the fix is to convert the 'zm' file to use UNIX style line endings. You can do this in the Vim text editor whilst editing the 'zm' file thus: ':set fileformat=unix' then save the file ':wq'. You can also use the utility dos2unix to convert the file.

tick the box for support for the Cambozola addon within your ZoneMinder installation: http://ip-address/zm (Options->Images tab->OPT_CAMBOZOLA)

Now have fun and add your cameras to ZoneMinder knowing you now have a very stable and streamlined OS to run it on.

CentOS 6 Notes

The installation for CentOS 6 is pretty much the same. Download CentOS 6 minimal installation ISO (CentOS-6.0-i386-minimal.iso – 257MB). Burn to CD and install. We only want to be running in console text mode not GUI graphics mode. During installation configure network and tick to enable network adapter.

Login as root and update the base install:

yum -y update

Install required packages, other useful packages, and their dependencies

yum groupinstall core
yum groupinstall base
yum install gcc gcc-c++ wget bison mysql-devel mysql-server php php-mysql php-pear php-pear-DB php-mbstring \
nano tftp-server httpd make ncurses-devel libtermcap-devel sendmail sendmail-cf caching-nameserver \
sox newt-devel libxml2-devel libtiff-devel php-gd audiofile-devel gtk2-devel subversion nano kernel-devel \
bison-devel ncurses zlib zlib-devel openssl openssl-devel gnutls-devel php-process perl-Time-HiRes

Suggestion:

To remove various configure/make errors in Centos 6.2, you may also want to install:

bzip2-libs ffmpeg-devel ffmpeg-php perl-Net-SFTP-Foreign perl-Expect perl-LWPx-ParanoidAgent.x86_64

Now we continue from step four (4).

Installation of ZoneMinder

In step five (5) the correct RPM Forge repository is:

# For i686 CentOS 6.x run:
rpm -Uhv http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.i686.rpm

# For 64 bit CentOS 6.x run:
rpm -Uhv http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

In step five (5) the command that seems to configure zoneminder correctly is:

CXXFLAGS=-D__STDC_CONSTANT_MACROS ./configure --with-webdir=/var/www/html/zm \
 --with-cgidir=/var/www/cgi-bin --with-webuser=apache --with-webgroup=apache \
ZM_DB_HOST=localhost ZM_DB_NAME=zm ZM_DB_USER=your_zm_user ZM_DB_PASS=your_zm_password ZM_SSL_LIB=openssl

Suggestion:

For Centos 6.2, I used the following configure string for success:

./configure --with-webdir=/var/www/html/zm --with-cgidir=/var/www/cgi-bin --with-webuser=apache --with-webgroup=apache ZM_DB_HOST=localhost ZM_DB_NAME=zm ZM_DB_USER=<zm user> ZM_DB_PASS=<zm user passwd> ZM_SSL_LIB=openssl  --with-extralibs="-L/usr/lib64 -L/usr/lib64/mysql" --with-ffmpeg=/usr/share/ffmpeg  CXXFLAGS="-D__STDC_CONSTANT_MACROS"

Troubleshooting FFmpeg Errors Building ZoneMinder

Using the git version of FFmpeg can cause the ZoneMinder make process to fail with unresolved symbols in ffmpeg. To remedy this, use version 0.6.5 of FFmpeg with the same configure instructions as the normal install above. FFmpeg 0.6.5: http://ffmpeg.org/releases/ffmpeg-0.6.5.tar.bz2

Troubleshooting Blank Page

If everything went ok but when accessing zoneminder's web page at http://localhost/zm, the page is blank this means that there is a problem with PHP short tags. Edit setting short_open_tag in php.ini (/etc/php.ini) and change it to On.

Restart apache server with:

service httpd restart

and you should be up and running.

Trouble shooting full drive with CentOS 6

The default drive structure has chaned from that of CentOS 5 having the full drive allocated to the /root partition. CentOS 6 by default makes a logical volume 'LVM' of 10% your drives space for the /root partition and the remaining drive as the /home partion with the exception of the swap and boot partitions.

The will cause Zoneminder to fill the /root partition as the /var/www/html/zm/events directory is by default located here, you can use the system-config-lvm utility to re-adjust this partition balance if your system has been installed with the default partition structure.

It is best to install CentOS 6 with a custom partition layout that is the same as CentOS 5 structure, you can also if using a single physical had drive do with out the LVM drives and create an EXT4 /root partion along with the standard /boot and /swap partitions.

== '''P.S.''' == aspcicc@jumpy.it (Update: This does not appear to be required any more.)

Hi! and thanks for your guide.. i want to add a little correction that have made me crazy to resolve, when I poweroff or reboot system i obtain an error related to mysql database and i have understood that the problem was because mysqld is stopped before zoneminder to be more specific there isn't a link under rc0.d (halt) and rc6.d (reboot) to zoneminder that for this lack is simply killed by killall. To resolve this problem you need to add at the start of zm (under /etc/init.d) the line

' # chkconfig: 345 99 01 '  (without ' of course)

and then run chkconfig --level 345 zm on chkconfig --level 06 zm off

So the link to shutdown zm is created under rc0.d and rc6.d and zoneminder is started at the end of poweron and stopped at the beginning of the poweroff

For information about priority starting and stopping processes see: http://www.netadmintools.com/art94.html

Added Dependency: ImageMagick

Removed Dependency: perl-Time-HiRes, which causes a conflict with the default perl package.

Also, mysql seems to install with no password for the root user, and the zm DB create script creates the database on the fly, which means that the database create command needs to have the "-p zm" removed from the command line.

Could someone verify that this is correct, to make sure it's not just something I missed?

Thanks! terry@cnysupport.com

Struggling to get x264 and ffmpeg working? I used the latest SVN versions not the Centos packages. But I was getting

ffmpeg: error while loading shared libraries: libavdevice.so.53: cannot open shared object file: No such file or directory

I followed these instructions:

cd /etc/ld.so.conf.d

add another file: custom-libs.conf
inside, put :

/usr/local/lib

save the file
run ldconfig

ldconfig

BeeryGaz

Failed monitors or ZM refusing to start

A problem that took me some time to figure out on two installations was SElinux. SElinux stops Zoneminder from accessing some system parts or doing some functions so will cause various errors or simply drive you nuts trying to figure out.

Look at the following page on how to disable SElinux or use permissive mode.

http://www.centos.org/docs/5/html/5.2/Deployment_Guide/sec-sel-enable-disable.html

Some of the errors that I was getting with a fresh install on CentOS 6 was

2013-02-16 16:13:10.828590	zmwatch	14898	ERR	Can't open memory map file '/dev/shm/zm.mmap.1': No such file or directory	zmwatch.pl	
2013-02-16 16:13:10.736988	zmfix	15317	ERR	Can't stat /dev/video0: Permission denied	zmfix.cpp

ZoneMinder 1.26.x

Zoneminder after a long period of none development is now being developed by the community, these notes are to try and help with the installation of the new release on CentOS 5 and CentOS 6. All testing has been done on a CentOS 6.4 fresh install server.

Cmake installation notes

Compiling of Zoneminder can now be done with the 'Cmake' command in replacement of the ./configure command this should automatically configure the build with the minimum of parameters. The 'Cmake' command at time of writing produced a partially working installation with the main files installed into /usr/local/bin/zoneminder and associated folders, different from the above guides.

The webfiles require to be linked via a zoneminder.conf file located with in the /disto/redhat directory inside the build directory that requires to be coped to the /etc/httpd/conf.d directory, this will need to be edited to the correct location of the webfiles and remove the local only command as indicated with in the file.

The Cmake install failed to use my BTTV capture card producing various errors with a potential solution given here

http://www.zoneminder.com/forums/viewtopic.php?f=30&t=21709

./configure compile

To install via the traditional ./configure method you first need to run the ./bootstrap.sh file to generate the required configure file, the install can then progress as the above installation guides.

This method has produced a fully working installation at time of writing.

pt_BR Instructions

Here is a good walkthrough install of zoneminder in CentOS using the rpm package method. It is intended to Portuguese (pt or pt_BR) audience.

http://dulimind.blogspot.com.br/2015/02/zoneminder-no-centos-6-metodo-facil-com.html

Categories: Linux distributions