COMP 3000 2011 Report: Dream Studio - Revision history

Smaqsood at 23:19, 22 December 2011

2011-12-22T23:19:00Z

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	<li><strong>timidity:</strong> Software synthesizer that can play MIDI (Musical Instrument Digital Interface) files without a hardware synthesizer.</li>		<li><strong>timidity:</strong> Software synthesizer that can play MIDI (Musical Instrument Digital Interface) files without a hardware synthesizer.</li>
	</ul>		</ul>
	<p>Next, the system starts the processes getty and gdm-binary. The process getty opens and initializes a tty line, reads a log-in name and invokes the login process to log a user into the computer. The process gdm-binary starts the GNOME Display Manager (GDM) which is a graphical log-in program. Once the user is logged into the computer, GDM starts a user session. This will start processes such as metacity, nautilus, gvfs ~~and~~ load desktop and application settings for the user from “/usr/lib/d-conf/dconf-service” and “/usr/lib/libgconf2-4/gconfd-2” respectively. Once the desktop is loaded, the system starts the process update-notifier, which scans the system for installed software and displays a list of updates.</p>		<p>Next, the system starts the processes getty and gdm-binary. The process getty opens and initializes a tty line, reads a log-in name and invokes the login process to log a user into the computer. The process gdm-binary starts the GNOME Display Manager (GDM) which is a graphical log-in program. Once the user is logged into the computer, GDM starts a user session. This will start processes such as metacity, nautilus and gvfs. It will also load desktop and application settings for the user from “/usr/lib/d-conf/dconf-service” and “/usr/lib/libgconf2-4/gconfd-2” respectively. Once the desktop is loaded, the system starts the process update-notifier, which scans the system for installed software and displays a list of updates.</p>
	<p>The information in this section was found by reading how upstart initializes Ubuntu, in the [http://upstart.ubuntu.com/cookbook/#system-phases Upstart Intro, Cookbook and Best Practises]. Next, I looked through the upstart jobs (.conf files) located in the directory “/etc/init.d” to find out how certain processes were started by the system. I also looked through the “/etc/rcS.d” and “/etc/rc2.d” directories to see how the old System V init scripts started some processes on the system. The description of all ~~the~~ running processes was taken from the [http://linux.die.net/man/ Linux man pages].</p>		<p>The information in this section was found by reading how upstart initializes Ubuntu, in the [http://upstart.ubuntu.com/cookbook/#system-phases Upstart Intro, Cookbook and Best Practises]. Next, I looked through the upstart jobs (.conf files) located in the directory “/etc/init.d” to find out how certain processes were started by the system. I also looked through the “/etc/rcS.d” and “/etc/rc2.d” directories to see how the old System V init scripts started some processes on the system. The description of all running processes was taken from the [http://linux.die.net/man/ Linux man pages].</p>

Smaqsood at 23:13, 22 December 2011

2011-12-22T23:13:09Z

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	<p>LMMS is a program that allows users to produce music with their computer. This includes the creation of melodies and beats, the synthesis and mixing of sounds, and arranging of samples. Users can have fun with their MIDI-keyboard and much more; all in a user-friendly and modern interface. The latest stable release of LMMS is 0.4.12 and it was released on July 2 2011. Dream Studio is using the latest version of this package and it has not been modified by Dream Studio. LMMS is included in Dream Studio to allow users to produce music using their computer.</p>		<p>LMMS is a program that allows users to produce music with their computer. This includes the creation of melodies and beats, the synthesis and mixing of sounds, and arranging of samples. Users can have fun with their MIDI-keyboard and much more; all in a user-friendly and modern interface. The latest stable release of LMMS is 0.4.12 and it was released on July 2 2011. Dream Studio is using the latest version of this package and it has not been modified by Dream Studio. LMMS is included in Dream Studio to allow users to produce music using their computer.</p>
	<h1>Initialization </h1>		<h1>Initialization </h1>
	<p>Dream Studio uses the same processes as Ubuntu to initialize the system. Specifically it uses a combination of System V init scripts and Upstart jobs to fully initialize the system. Attached is a [[List of Processes Running in Dream Studio\|ps listing]] of all the processes that are running ~~when~~ Dream Studio boots up.</p>		<p>Dream Studio uses the same processes as Ubuntu to initialize the system. Specifically it uses a combination of System V init scripts and Upstart jobs to fully initialize the system. Attached is a [[List of Processes Running in Dream Studio\|ps listing]] of all the processes that are running in Dream Studio when it boots up.</p>
	<p>The boot process starts by loading the kernel and its associated modules. After the kernel is finished loading, it runs the init process located in “/sbin/init”. Init is the parent process of all other processes running on the system.</p>		<p>The boot process starts by loading the kernel and its associated modules. After the kernel is finished loading, it runs the init process located in “/sbin/init”. Init is the parent process of all other processes running on the system.</p>
	<p>Next, Upstart emits a “start-up” event and init runs the jobs located in “/etc/init” that specify the “start-up” event in their “start on” condition. This includes the mountall job which mounts the disks and file systems.</p>		<p>Next, Upstart emits a “start-up” event and init runs the jobs located in “/etc/init” that specify the “start-up” event in their “start on” condition. This includes the mountall job which mounts the disks and file systems.</p>

Smaqsood at 23:11, 22 December 2011

2011-12-22T23:11:53Z

← Older revision		Revision as of 23:11, 22 December 2011
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	<li><strong>timidity:</strong> Software synthesizer that can play MIDI (Musical Instrument Digital Interface) files without a hardware synthesizer.</li>		<li><strong>timidity:</strong> Software synthesizer that can play MIDI (Musical Instrument Digital Interface) files without a hardware synthesizer.</li>
	</ul>		</ul>
	<p>Next, the system starts getty and gdm-binary ~~processes~~. The process getty opens and initializes a tty line, reads a log-in name and invokes the login process to log a user into the computer. The process gdm-binary starts the GNOME Display Manager (GDM) which is a graphical log-in program. Once the user is logged into the computer, GDM starts a user session. This will start processes such as metacity, nautilus, gvfs and load desktop and application settings for the user from “/usr/lib/d-conf/dconf-service” and “/usr/lib/libgconf2-4/gconfd-2” respectively. Once the desktop is loaded, the system starts the process update-notifier, which scans the system for installed software and displays a list of updates.</p>		<p>Next, the system starts the processes getty and gdm-binary. The process getty opens and initializes a tty line, reads a log-in name and invokes the login process to log a user into the computer. The process gdm-binary starts the GNOME Display Manager (GDM) which is a graphical log-in program. Once the user is logged into the computer, GDM starts a user session. This will start processes such as metacity, nautilus, gvfs and load desktop and application settings for the user from “/usr/lib/d-conf/dconf-service” and “/usr/lib/libgconf2-4/gconfd-2” respectively. Once the desktop is loaded, the system starts the process update-notifier, which scans the system for installed software and displays a list of updates.</p>
	<p>The information in this section was found by reading how upstart initializes Ubuntu, in the [http://upstart.ubuntu.com/cookbook/#system-phases Upstart Intro, Cookbook and Best Practises]. Next, I looked through the upstart jobs (.conf files) located in the directory “/etc/init.d” to find out how certain processes were started by the system. I also looked through the “/etc/rcS.d” and “/etc/rc2.d” directories to see how the old System V init scripts started some processes on the system. The description of all the running processes was taken from the [http://linux.die.net/man/ Linux man pages].</p>		<p>The information in this section was found by reading how upstart initializes Ubuntu, in the [http://upstart.ubuntu.com/cookbook/#system-phases Upstart Intro, Cookbook and Best Practises]. Next, I looked through the upstart jobs (.conf files) located in the directory “/etc/init.d” to find out how certain processes were started by the system. I also looked through the “/etc/rcS.d” and “/etc/rc2.d” directories to see how the old System V init scripts started some processes on the system. The description of all the running processes was taken from the [http://linux.die.net/man/ Linux man pages].</p>

Smaqsood at 23:05, 22 December 2011

2011-12-22T23:05:55Z

Smaqsood at 23:01, 22 December 2011

2011-12-22T23:01:21Z

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	<p>Packages can be installed or removed in Dream Studio by using any of the package management utilities listed below: (note: dpkg is excluded from this list because it is not recommended to directly install/remove packages using this utility)</p>		<p>Packages can be installed or removed in Dream Studio by using any of the package management utilities listed below: (note: dpkg is excluded from this list because it is not recommended to directly install/remove packages using this utility)</p>
	<h4>APT</h4>		<h4>APT</h4>
	<p>Search for a package by typing the following command in the terminal:		<p>Search for a package by typing the following command in the terminal:</p>
	<pre>$ apt-cache search <search term></pre>		<pre>$ apt-cache search <search term></pre>
	Example: To search for a graphics program/package type the following command in the terminal:		<p>Example: To search for a graphics program/package type the following command in the terminal:</p>
	<pre>$ apt-cache search <graphics program></pre>		<pre>$ apt-cache search <graphics program></pre>
	Select the package name from the search results and then use the commands below to install or remove the package if is already installed:		<p>Select the package name from the search results and then use the commands below to install or remove the package if is already installed.</p>
	</p>
	<p><strong>Installing a package:</strong> Type the following command in the terminal to install a given package: </p>		<p><strong>Installing a package:</strong> Type the following command in the terminal to install a given package: </p>
	<pre>$ apt-get install <package_name></pre>		<pre>$ apt-get install <package_name></pre>

Smaqsood at 22:56, 22 December 2011

2011-12-22T22:56:22Z

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	<li><p><strong>Aptitude: </strong>Aptitude is a command line text-based menu front-end for APT. It can be used to install, update and remove packages on the system. Aptitude can be accessed in Dream Studio by using the command line utility aptitude.</p></li>		<li><p><strong>Aptitude: </strong>Aptitude is a command line text-based menu front-end for APT. It can be used to install, update and remove packages on the system. Aptitude can be accessed in Dream Studio by using the command line utility aptitude.</p></li>
	<li><p><strong>Ubuntu Software Center: </strong>Ubuntu Software Center is the graphical (GUI) front-end for APT and can be used to browse, install, update and remove packages. It is the most simple application in Dream Studio to install packages but it can ignore certain packages (i.e. packages that don’t contain programs), and therefore the Synaptic Package Manager should be used to install complex packages or packages that cannot be installed using the Ubuntu Software Center.</p></li>		<li><p><strong>Ubuntu Software Center: </strong>Ubuntu Software Center is the graphical (GUI) front-end for APT and can be used to browse, install, update and remove packages. It is the most simple application in Dream Studio to install packages but it can ignore certain packages (i.e. packages that don’t contain programs), and therefore the Synaptic Package Manager should be used to install complex packages or packages that cannot be installed using the Ubuntu Software Center.</p></li>
	<li><p><strong>Synaptic Package Manager: </strong>The Synaptic Package Manager provides an advanced GUI front-end for APT. It can be used to browse, install, update and remove any package on the system. It is similar to the Ubuntu Software Center, but provides more information and complete control over the packages installed on the system.<p></li>		<li><p><strong>Synaptic Package Manager: </strong>The Synaptic Package Manager provides an advanced GUI front-end for APT. It can be used to browse, install, update and remove any package on the system. It is similar to the Ubuntu Software Center, but provides more information and complete control over the packages installed on the system.</p></li>
	</ul>		</ul>
	<h2>Listing Installed Software</h2>		<h2>Listing Installed Software</h2>

Smaqsood at 22:54, 22 December 2011

2011-12-22T22:54:34Z

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	<p>Dream Studio uses Ubuntu’s package management utilities to package and distribute software. Software is distributed in package files with a .deb extension to software repositories, and Dream Studio can download and install the software from these software repositories using a package management utility. Since Ubuntu uses Dobbin’s package management utilities, the base package management utility of Dream Studio is dpkg. Dream Studio has the following package management utilities:</p>		<p>Dream Studio uses Ubuntu’s package management utilities to package and distribute software. Software is distributed in package files with a .deb extension to software repositories, and Dream Studio can download and install the software from these software repositories using a package management utility. Since Ubuntu uses Dobbin’s package management utilities, the base package management utility of Dream Studio is dpkg. Dream Studio has the following package management utilities:</p>
	<ul>		<ul>
	<li><strong>dpkg: </strong>dpkg is the base software of Dream Studio’s package management system. It is a low-level package management utility that can be used to create, install and remove packages. dpkg cannot get packages from remote repositories or manage complex package dependencies, therefore it is recommended that a higher level utility such as APT be used to install, update and remove packages in Dream Studio.<br />		<li><p><strong>dpkg: </strong>dpkg is the base software of Dream Studio’s package management system. It is a low-level package management utility that can be used to create, install and remove packages. dpkg cannot get packages from remote repositories or manage complex package dependencies, therefore it is recommended that a higher level utility such as APT be used to install, update and remove packages in Dream Studio.</p></li>
	</li>		<li><p><strong>APT (Advanced Packaging Tool): </strong>APT is a command line based front-end for dpkg. It allows users to install, update and remove packages on the system and, unlike dkpg it can download packages from remote repositories and manage package dependencies. APT can be accessed in Dream Studio by using the command line utility apt-get.</p></li>
	<li><strong>APT (Advanced Packaging Tool): </strong>APT is a command line based front-end for dpkg. It allows users to install, update and remove packages on the system and, unlike dkpg it can download packages from remote repositories and manage package dependencies. APT can be accessed in Dream Studio by using the command line utility apt-get.</li>		<li><p><strong>Aptitude: </strong>Aptitude is a command line text-based menu front-end for APT. It can be used to install, update and remove packages on the system. Aptitude can be accessed in Dream Studio by using the command line utility aptitude.</p></li>
	<li><strong>Aptitude: </strong>Aptitude is a command line text-based menu front-end for APT. It can be used to install, update and remove packages on the system. Aptitude can be accessed in Dream Studio by using the command line utility aptitude.<br />		<li><p><strong>Ubuntu Software Center: </strong>Ubuntu Software Center is the graphical (GUI) front-end for APT and can be used to browse, install, update and remove packages. It is the most simple application in Dream Studio to install packages but it can ignore certain packages (i.e. packages that don’t contain programs), and therefore the Synaptic Package Manager should be used to install complex packages or packages that cannot be installed using the Ubuntu Software Center.</p></li>
	</li>		<li><p><strong>Synaptic Package Manager: </strong>The Synaptic Package Manager provides an advanced GUI front-end for APT. It can be used to browse, install, update and remove any package on the system. It is similar to the Ubuntu Software Center, but provides more information and complete control over the packages installed on the system.<p></li>
	<li><strong>Ubuntu Software Center: </strong>Ubuntu Software Center is the graphical (GUI) front-end for APT and can be used to browse, install, update and remove packages. It is the most simple application in Dream Studio to install packages but it can ignore certain packages (i.e. packages that don’t contain programs), and therefore the Synaptic Package Manager should be used to install complex packages or packages that cannot be installed using the Ubuntu Software Center.<br />
	</li>
	<li><strong>Synaptic Package Manager: </strong>The Synaptic Package Manager provides an advanced GUI front-end for APT. It can be used to browse, install, update and remove any package on the system. It is similar to the Ubuntu Software Center, but provides more information and complete control over the packages installed on the system.</li>
	</ul>		</ul>
	<h2>Listing Installed Software</h2>		<h2>Listing Installed Software</h2>

Smaqsood at 22:53, 22 December 2011

2011-12-22T22:53:03Z

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	<li><strong>Synaptic Package Manager: </strong>The Synaptic Package Manager provides an advanced GUI front-end for APT. It can be used to browse, install, update and remove any package on the system. It is similar to the Ubuntu Software Center, but provides more information and complete control over the packages installed on the system.</li>		<li><strong>Synaptic Package Manager: </strong>The Synaptic Package Manager provides an advanced GUI front-end for APT. It can be used to browse, install, update and remove any package on the system. It is similar to the Ubuntu Software Center, but provides more information and complete control over the packages installed on the system.</li>
	</ul>		</ul>
	<h2> Listing Installed Software</h2>		<h2>Listing Installed Software</h2>
	<p>A listing of all the software installed in Dream Studio can be obtained by using the package management utilities below:</p>		<p>A listing of all the software installed in Dream Studio can be obtained by using the package management utilities below:</p>
	<ul>		<ul>
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	<li><strong>Synaptic Package Manager: </strong>The following steps describe how to obtain a list of installed software using the Synaptic Package Manager:		<li><strong>Synaptic Package Manager: </strong>The following steps describe how to obtain a list of installed software using the Synaptic Package Manager:
	<ol>		<ol>
	<li>Open the Synaptic Package Manager by selecting it from the ~~menu~~ System > Administration in the top menu bar.</li>		<li>Open the Synaptic Package Manager by selecting it from the menu System > Administration in the top menu bar.</li>
	<li>Select the “Status” button from the Synaptic Packager Manager.</li>		<li>Select the “Status” button from the Synaptic Packager Manager.</li>
	<li>Select “Installed” from the menu located at the top of the buttons.</li>		<li>Select “Installed” from the menu located at the top of the buttons.</li>

Smaqsood at 22:38, 22 December 2011

2011-12-22T22:38:51Z

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	[[File:pic.png\|200px\|thumb\|right\|Dream Studio Desktop.]]		[[File:pic.png\|200px\|thumb\|right\|Dream Studio Desktop.]]

	<p>[http://www.dream.dickmacinnis.com/forum/ Dream Studio] is an Ubuntu based distribution that provides users tools to create stunning graphics, music, videos and websites. It is developed and maintained by Dick MacInnis, who originally designed the distribution for his work. ~~The distribution~~ can be installed to the hard drive, run from a DVD or a USB flash drive. ~~It takes advantage~~ of ~~the Ubuntu base~~ and does not modify the default packages provided by Ubuntu ~~for ease of system updates and maintenance~~. The primary target audience for this distribution are designers, musicians or anyone developing multimedia (video, audio etc.) or design products. <br /></p>		<p>[http://www.dream.dickmacinnis.com/forum/ Dream Studio] is an Ubuntu based distribution that provides users tools to create stunning graphics, music, videos and websites. It is developed and maintained by Dick MacInnis, who originally designed the distribution for his work. Dream Studio can be installed to the hard drive, run from a DVD or USB flash drive. For ease of system updates and maintenance, Dream Studio does not modify the default packages provided by Ubuntu. The primary target audience for this distribution are designers, musicians or anyone developing multimedia (video, audio etc.) or design products. <br /></p>

	<h1>Software Packaging </h1>		<h1>Software Packaging </h1>

Smaqsood at 22:23, 22 December 2011

2011-12-22T22:23:20Z

Show changes

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	<li><strong>Aptitude: </strong>The following steps describe how to obtain a list of installed software using Aptitude:		<li><strong>Aptitude: </strong>The following steps describe how to obtain a list of installed software using Aptitude:
	<ol>		<ol>
	<li>Type the command "aptitude" in the terminal: </li>		<li>Type the command "aptitude" in the terminal:</li>
	<li>Select the option “Installed Packages” from the menu.		<li>Select the option “Installed Packages” from the menu.
	<br />		<br />
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	<pre>$ apt-get purge <package_name></pre>		<pre>$ apt-get purge <package_name></pre>
	<h4>Aptitude</h4>		<h4>Aptitude</h4>
	<p>Open ~~aptitude~~ by typing "aptitude" in the terminal:</p>		<p>Open Aptitude by typing "aptitude" in the terminal:</p>

	<p><strong>Installing a package:</strong> The steps below describe how to select and install a package using ~~aptitude~~: </p>		<p><strong>Installing a package:</strong> The steps below describe how to select and install a package using Aptitude: </p>
	<ol>		<ol>
	<li>Select the “Not Installed Packages” from the menu at the top.</li>		<li>Select the “Not Installed Packages” from the menu at the top.</li>
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	<li>Select a package repository from the displayed list.</li>		<li>Select a package repository from the displayed list.</li>
	<li>Browse the displayed list of available packages and mark a package to be installed by pressing the “+” key.</li>		<li>Browse the displayed list of available packages and mark a package to be installed by pressing the “+” key.</li>
	<li>Press the “g” key twice to install the selected package.		<li>Press the “g” key twice to install the selected package.</li>
	~~<br />~~
	</li>
	</ol>		</ol>
	<p><strong>Removing a package: </strong>The steps below describe how to select and remove a package using ~~aptitude~~:		<p><strong>Removing a package: </strong>The steps below describe how to select and remove a package using Aptitude:</p>
	</p>
	<ol>		<ol>
	<li>Select the “Installed Packages” from the menu at the top.</li>		<li>Select the “Installed Packages” from the menu at the top.</li>
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	<h3>Ubuntu Software Center</h3>		<h3>Ubuntu Software Center</h3>
	<p>Open Ubuntu Software Center by selecting it from the menu at the top: Applications > Ubuntu Software Center</p>		<p>Open Ubuntu Software Center by selecting it from the menu at the top: Applications > Ubuntu Software Center</p>
	<p><strong>Installing a package: </strong>The steps below describe how to install a package using the Ubuntu Software Center:		<p><strong>Installing a package: </strong>The steps below describe how to install a package using the Ubuntu Software Center:</p>
	</p>
	<ol>		<ol>
	<li>Find the package to be installed by selecting it from the categories listed under the ‘Get Software” menu in the left-pane or searching for it using the “Search” box in the top right corner.</li>		<li>Find the package to be installed by selecting it from the categories listed under the ‘Get Software” menu in the left-pane or searching for it using the “Search” box in the top right corner.</li>
	<li>Select the package to be installed from the results displayed in the right-pane.</li>		<li>Select the package to be installed from the results displayed in the right-pane.</li>
	<li>Select the “Install” option to install the selected package.		<li>Select the “Install” option to install the selected package.</li>
	~~<br />~~
	</li>
	</ol>		</ol>
	<p><strong>Removing a package: </strong>The steps below describe how to remove a package using the Ubuntu Software Center:		<p><strong>Removing a package: </strong>The steps below describe how to remove a package using the Ubuntu Software Center:</p>
	</p>
	<ol>		<ol>
	<li>Select the “Installed Software” option from the left-pane.</li>		<li>Select the “Installed Software” option from the left-pane.</li>
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	<h3>Synaptic Package Manager</h3>		<h3>Synaptic Package Manager</h3>
	<p>Open Synaptic Package Manager by selecting it from the menu at the top: System > Administration > Ubuntu Software Center</p>		<p>Open Synaptic Package Manager by selecting it from the menu at the top: System > Administration > Ubuntu Software Center</p>
	<p><strong>Installing a package:</strong> The steps below describe how to install a package using the Synaptic Package Manager:		<p><strong>Installing a package:</strong> The steps below describe how to install a package using the Synaptic Package Manager:</p>
	</p>
	<ol>		<ol>
	<li>Select the “Status” button from the Synaptic Packager Manager.</li>		<li>Select the “Status” button from the Synaptic Packager Manager.</li>
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	<li>Select the package to be installed from the list displayed in the right-pane.</li>		<li>Select the package to be installed from the list displayed in the right-pane.</li>
	<li>Right-click on the package and select the “Mark for Installation” option from the pop-up menu.</li>		<li>Right-click on the package and select the “Mark for Installation” option from the pop-up menu.</li>
	<li>Select the “Apply” option from the toolbar at the top.		<li>Select the “Apply” option from the toolbar at the top.</li>
	~~<br />~~
	</li>
	</ol>		</ol>
	<p><strong>Removing a package:</strong> The steps below describe how to remove a package using the Synaptic Package Manager:		<p><strong>Removing a package:</strong> The steps below describe how to remove a package using the Synaptic Package Manager:</p>
	</p>
	<ol>		<ol>
	<li>Select the “Status” button from the Synaptic Packager Manager.</li>		<li>Select the “Status” button from the Synaptic Packager Manager.</li>