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For many years, it has been a dream to develop a Linux based on Ubuntu. Creating a Ubuntu distro is not difficult at all, if certain guidelines are followed. There are several tools that are required to create the Ubuntu-based distro. With the help of these tools, even the beginners can find it relatively easier to build their own Linux based on Ubuntu.
The installation can be somewhat problematic when it comes to authenticating of the repository key. Again, after passing through this issue, the user can face some more errors during the installation procedure as well. It is a conflicting issue between GUI and GTK of the Remastersys. The user needs to select Remastersys GTK. When it is run for the first time, there will appear a whole lot of warning messages on the screen. Most messages will ask to close any of the applications that are opened. Some messages will also ask for unmounting any of the network shares. If followed the warning instructions properly, then Remastersys can surely be one remarkable option to use for developing Ubuntu-based distro.
If the user wants to create a very specific distributable version of the installation, this is the option to choose.
This is very similar to Dist with a slight modification or higher facility. Here, the user can add some additional files to the Ubuntu-based distro. This is the place to carryout the file customization
After inclusion of additional files using the Distcdfs, the user can use the Distiso button to create an ISO for the distro CD.
This button can be used to take a total backup of the Ubuntu distro installation.
After using Distiso, the user can also use Boot Menu image for installed environment as well user settings. A whole set of different Plymouth themes are provided after Distiso. There are additional features available on the SETTINGS tab like CD naming/labeling scheme, Files to Skip, and Squashfs options. Those who are new to Linux, this is one of the best process to build a customized ISO. In fact, this is one simple procedure to create the Linux based Ubuntu distro.
There is a distro creator tool (web based) available only for $5. It is known as Reconstruct or. This tool also supports Ubuntu (ver: 11.10) OS templates. The most amazing feature of this software tool is that user has the option to select Debian releases instead of Ubuntu. The user can also select from different other desktop environments like XFCE and KDE. After all, it is quite a nice thing to not being limited to the Gnome only.
On the top left side of the screen appears the tag 'Project Name'. There are more options to look out for. Once the 'Project Name' is clicked, additional options gets visible: members, Tags, Modules, Files, and also an Advanced Section. But, the intermediates may not find this tool much comfortable to use without the slightest of guidance. Hence, before using this tool, some guidance is required to proceed in a smoother way.
For intermediates, this is the best tool to use for developing Linux based Ubuntu distro. It is simply and easy to use.
Beginners should tryout either Ubuntu Builder or Remastersys. These are easy to use and does not feature complicated work interface to deal with. As a result, building Linux based on Ubuntu becomes easier and simpler.
About the author: Kelly is a blogger by profession. She loves writing, reading and travelling. She contributes to Jasper Williams Sioux Falls SD
The Java SE 6 run-time that was tagged along with previous versions of OS X and is available on
demand for Lion users might be the last version that Apple will officially support in OS X. But this does
not herald the end of the road for OS X as Oracle; Java's parent company has taken up the reins for its
development and recently unveiled the first version of the upcoming Java SE 7 run-time for OS X.
In order to install the Java 7 development kit for OS X, the installer package must be downloaded
from the Oracle Web site and executed. The installer will verify whether the user’s system meets the
requirements i.e. whether it is running on the latest OS X 10.7 or previous versions. Thereafter the Java 7
development kit shall be put into the Java Virtual Machines directory along-side any versions of Java SE
6 that has been previously installed. The installing device before quitting makes sure that run times in the
directory are properly useable.
After the Java run-time has been installed, users must make sure that it is working properly on their
respective systems. To do this, users can click on the utilities or the applications section of the setup file
and click on the option for preferences utility. In the general section of this utility, users can check whether
the Java SE 7 run time has been enabled. Users can personally enable the run-time’s either by dragging
it to the top of the list and keeping all run times enabled, or by un-checking all the run times except the
Java SE 7 run-time. Reorganizing the list is the best option for users requiring the use of Web applets or
Web Start Applications since it allows the plug-in process to access compatible run times.
To determine whether the installed version is of the latest make, the Terminal application in the Utilities
folder must be made to run the following command: 'java –version’
When this command is run, users will able to see an output that states the installed version of the Java
run time is ‘22.214.171.124.4’ alongside some additional information. Users by following this can ensure that the
latest Java run time has been installed on their system and can use it further for running Java applications
or for developing any java related application. But one thing must be kept in mind that these settings
depends on individual usage so users must ensure that Java 7 is enabled to be the preferred run time for
each user on the system where it is installed.
If a user wishes to remove or uninstall the Java 7 run time installed on their system, they can temporarily
remove the application or permanently remove it from the system.
To deactivate the run time, users should open Preferences application of Java and uncheck the run time
in the General section, or reposition the list so that another run time is placed ahead of it. Additionally if
a user wishes to uninstall completely the Java 7 run time, then they must visit the HD Library hosted by
Macintosh or Java Virtual Machines directory and delete a file called ‘1.7.0.jdk.’
The updated version of OS X spells good news for Java developers and for those end-users who run
Java related codes on Macintosh systems. However, some other basic requirements do not make it a
very handy run-time to use since barring Lion only versions of OS X, it is incompatible with other versions.
The system requirements may alter in the future to enable versions like Snow Leopard to function, but as
of now tech-support for previous non-Lion versions of OS X are not available across stores.
Apart from being a Lion only run-time, it is meant only to be an interface for creating Java applications.
Therefore, even though users can use it to evaluate Java applications, the logistics including plug-ins
required to launch Java applets from Web browsers are also missing
About The Author: Kelly is a self-employed designer, illustrator & blogger. She loves writing, along with
travelling. Blogging is her passion. These days she is working on Local rank tracking. Recently she did an
article on Java applications.
10 reasons why PCs crash U must Know
Fatal error: the system has become unstable or is busy," it says. "Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications."
You have just been struck by the Blue Screen of Death. Anyone who uses Mcft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?
1 Hardware conflict
The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.
For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.
If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:
* Start-Settings-Control Panel-System-Device Manager.
Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.
Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.
Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).
When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.
To be fair to Mcft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.
2 Bad Ram
Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.
But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.
One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.
Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.
EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.