Technology And Computer|

Linux is one of the most used open-sourced operating systems that has carved its own niche among its faithful users. It is fast, easy-to-use, and reliable. Also, it is part of the LAMP (Linux, Apache, MySQL, PHP) stack that provides a lot of advantages to the developers and users. However, it has one drawback that it does not have a Recycle Bin like Windows systems. So, if a file is deleted you need to perform few tasks to finally recover the deleted file. However, if you are unable to recover the deleted file then you should use a third-party Linux data recovery software to perform Linux recovery.

Consider a scenario wherein you have an ext2-based Linux system. In this, you have accidentally deleted some files. Now, you want to recover the deleted files.

Resolution:

To resolve this situation, you should perform data recovery of Linux system. To do this, you should perform the following steps:

·     First of all, you should determine the partition from the file was deleted. For this, you should use the pwd command in the shell console to know the working directory.

·     You should unmount the current directory using the unmount command. Because of this, the original file would not be overwritten while recovering it.

·     You should use the debugfs command. This command enables you to rectify the problems without causing a system crash or restart.

·     You should use the isdel command. This command would enlist all the files that were deleted on the file system. Please note that this process may take some time to get completed.

·     You should use the dump filename command. This command would write all the mentioned files to the current partition you are working in.

·     Now, restart the system. The recovered files will be at the specified location.

However, if you still are not able to recover the deleted files, then you should use a third-party Linux data recovery software to do the needful. Such ext2 recovery tools are read-only in nature and are able to perform data recovery of Linux systems using fast yet sophisticated scanning algorithms.

Stellar Phoenix Linux Data Recovery is a Linux recovery software that is able to recover lost, formatted, or deleted files from various file systems such as ext2, ext3, ext4, FAT32, FAT16, and FAT12. In addition, this ext3 recovery tool is supported by various Linux distributions such as Red Hat, SUSE, Debian, Caldera, Mandrake, Sorcerer, TurboLinux, Slackware, Gentoo, etc. Also, it recovers data from various types of hard drives such as  SCSI, SATA, EIDE, and IDE. This ext4 recovery tool is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

These days, you really have a lot of choices when it comes to linux web hosting. In fact, a lot of people actually prefer this type of web hosting because it creates a situation where there is compatibility with a wide variety of scripts and software tools that a lot of webmasters enjoy using. When you think about it, none of your customers or clients will ever really know what kind of web hosting solution you happen to be using. However, your customers and clients will really appreciate the fact that they can visit a website that is well-designed and that has a variety of very useful functions built into it. To have more understanding and clarity on web hosting providers, read HostGator review.

The overwhelming majority of major hosting companies offer linux web hosting to all of their customers. You should really think about taking advantage of this particular type of web hosting. In case you’re wondering, this actually refers to the type of operating system that is utilized on the server where your website will be located. If that sounds a little bit complicated, don’t worry. It’s a lot easier than it sounds. All you need to realize is the fact that I you will be giving yourself the ability to upgrade any scripts you might have installed on the website as well as to utilize a wider variety of tools and scripts that simply are not available to individuals who choose to use other forms of web hosting.

Given the fact that a large open source community actively develops and supports the software that powers linux web hosting, you can be assured that any website you choose to host on this particular operating system will be safe. Not to mention, your hosting costs will probably be a lot cheaper than you realize. The reason why is because of the fact that this happens to be an open source operating system. That reduces the cost to your web hosting provider, which is then in turn passed along to you.

When you start any application on your Linux system, you may come across with the following error message:

“Program name: error in loading shared libraries: lib xxx…so. X: cannot open shared object file: No such file or directory.”

After this error message, the application gets terminated unexpectedly and you can not use it any more.

Reason of this problem

This problem occurs with the applications which are using shared libraries. This problem occurs if your computer has incompatible libraries to the applications or the applications and system have mismatched file versions of libraries.

Another reason of this problem could be the corruption to system files. The corruption could be the result of virus attack. Due to corruption, the application could not access the required files and fails to start.

Regardless of the reason, this error message leads to the inaccessibility of your precious data stored on the hard drive and ultimately leads to data loss. For savin your business critical data, it is extremely important to solve this issue as soon as possible.

Resolution

To work around this issue, you can use the following two options:

? If the problem is due to incompatible application or system libraries, update them.

? If it does not work, the problem is due to system file corruption and it needs to reinstall the operating system.

Reinstallation of operating system is the ultimate solution of all the system related problems. But it also has a downside which can lead to data loss. Reinstallation requires hard drive formatting and formatting wipes all the data stored on the drive.

In these situations, you need for something which can perform data recovery Linux to recover your lost Linux data. The data recovery Linux is feasible with the application of Linux recovery software.

Linux data recovery software are the perfect solutios of Linux recovery. They can carry out data recovery Linux in all cases of data loss. These software are highly developed and do fast and effective Linux data recovery.

Stellar Phoenix Linux Data Recovery software is the best ever made and highly developed Linux recovery software. This software is applicable to each and every case of data loss and executes efficient data recovery Linux.

You can use this Linux data recovery software for all flavors of Linux to recover all sorts of lost files including documents, spreadsheets, library files, application data and many alike. User interface of this Linux recovery software is very cool looking and thus allows you to have trouble-free data recovery Linux.

Unix and Linux are both POSIX compliant operating systems. POSIX defined a standard interface to the low-level operating system which greatly reduces the amount of work required to produce UNIX and Linux software.

Unix and Linux software development

The standard user command line and scripting interface was based on the Korn shell. Other user-level programs, services and utilities include awk, echo, ed, and hundreds of others. Required program-level services include basic I/O (file, terminal, and network) services. POSIX also defines a standard threading library API which is supported by most modern operating systems.

Currently POSIX documentation is divided in three parts:

POSIX Kernel APIs

POSIX Commands and Utilities

POSIX Conformance Testing

Linux Development requires both POSIX and 3rd party/native GDI and GUI frameworks to create usable Linux and UNIX software. DOTNUTSHELL can create highly scalable and usable POSIX software which can be run on UNIX and Linux. The software can range from simple utilities to distributed software which has to be run on heterogenous platforms such as Linux, UNIX and Windows.

Linux and UNIX development is also the desired platform and framework for the creation of embedded software:

Embedded software and embedded systems, are those that require 100% of resources shared across a single platform often used to monitor, update and control hardware.

DOTNUTSHELL has experience in creating robust, efficient embedded software running as a monolithic Operating system, or a Kernel add-on in an Embedded Linux distribution.

It is the responsibility of the underlying embedded software system to maintain state information, persist changes to hardware configuration as well as gaurantee transaction and concurrency control at the hardware interface-level.

We have experience in creating:

MontaVista based embedded software

Embeddix based embedded software

Linux Driver creation

low-level hardware and bus interface strategies and mechanisms

I/O mapping and application/kernel space mixing

Real-time application development

Cross platform development

Assembler/C/C++ based embedded software development

POSIX development

RISC/PowerPC405 & 82xx, MIPS Development

Incoming search terms for the article:

• embedded system linux conformance test (1)

Sometimes when you try to install device drivers on your Linux system, you might fail to do it. It could be due to incompatibility of the operating system Kernel with your device driver or device.

To work around this issue, you need to install the latest version of Linux kernel. It may include ‘forcedeth’ patch, which is capable of resolving most of the incompatibility issues.

In some cases, after installing the latest version of Kernel, when you reboot the Linux system, you might face the following error message:

“fsck.ext2: No such file or directory while trying to open /dev/hda8. The super block could not be read or does not describe a correct ext2 file system. If the device is valid and it really contains an ext2 file system (and not swap or ufs or something else) then the super block is corrupt, and you might try running e2fsck with an alternate super block: e2fsck -b 8193 <device> fsck failed.”

After this error message, neither the system boots nor any file can be accessed.

Grounds of the issue

As stated in the error message, this problem generally occurs due to super block corruption or file system corruption.

è Super block and file system are two most important data structure of Linux system. Proper functioning of both these is required for ensuring effective working of the system.

After corruption, the operating system could not locate the file and thus can not retrieve it.

Resolution

To work around this problem, you need to install a fresh copy of super block and file system. It is possible through formatting of the hard drive and reinstallation of operating system.

Though, it will remove the errors but will also erase all the data stored on your hard drive. It is the worst scenario of data loss and needs Linux data recovery to get it fixed.

Linux data recovery is feasible with the application of third party Linux recovery software known as Linux data recovery software. Linux recovery software is easy to use and thus allow you to have simple and fast data recovery Linux.

Stellar Phoenix Linux Data Recovery is the most advanced Linux recovery software offered by the data recovery giant- Stellar. This data recovery Linux software works well in all data loss cases and allows Linux data recovery for all sorts of files.

Stellar Phoenix Linux Data Recovery software is powerful enough to carry out efficient scanning of entire hard drive and extract all lost data from it. The user interface of this software is very interactive and thus does not require any sound technical knowledge from users’ side.

Linux is a great operating system which is having various unique capacities that is not available in other operating system. It has capacities for high capacity data maintenance, multi user and multi tasking capacities which are very essential for today’s world where there is a huge amount of data as well as information which need to store in the computer. Linux is perfect suitable for these kind of thing and is used for a long time in the high capacities servers. Data loss is a very risky thing which occurs in all the operating system and unfortunately it happens in Linux operating systems too. We generally think that once the data lost can’t recover forever and it was true till there was not any solution for this kind of problem. As programmers and developers felt this problem, they made the software which can rescue all the lost data.

If you are using the Linux based computer systems then you might face the following problems:
• Lost or Corrupted MBR
• Lost or Corrupted Super Block
• Lost or Corrupted Inode Table
• Deletion of files or folders
• Root Directories corruption
• Corrupted BGD (Block Group Descriptor)

Finally they made software which has capacity to recover all the data and named it as Linux data recovery software. This software can recover the files after:
• Files get removed by virus attack
• Files get removed due to power failure
• Files get removed due to system failure
• Files get removed due to human error
• The volume is reformatted even with a different operating system
• Change or damage in volume structure
• Presence of bad sectors on the disk

The Linux data recovery Software has a very intuitive graphical interface which is an on-screen wizard that will guide you to perform all the necessary steps for data recovery. The Linux data recovery software has the TurboScan technology and some adjustable tweaks which can make the recovery process much faster than before. It needs windows 2000, XP or 2003 as a host operating system. The software supports Ext2FS and Ext3FS file system. It has disk imaging and cloning capacities. The Disk Imaging helps in create image files that can be used as a regular disk. The Disk Cloning option allow the cloning the faulty disk to a healthy disk.

You can have various file transfer options with the Linux data recovery software. You can save the recover files on the other system of network. Moreover you can save the files on the remote FTP location also. It also performs the logical volume management (LVM) support for Linux volumes. It is available as demo version and License version. Demo is available for free and you have to purchase the License version. Different Licenses are available for different kind of users and you can choose it from them.

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A dual boot or multi boot is a system in which two operating systems are installed on a single hard drive, letting you boot from either of the operating system. The boot loader is a program which allows you to have dual booting.

General combination of operating systems exercised in dual booting includes Linux and Windows. The dual booting allows you to use features and functions of both of the operating systems on a single computer. Dual boot systems are mostly useful for programmers and testers.

Although, dual boot systems are very useful but sometimes they can also cause several problems. A minor mistake made by the user while making a dual boot system can lead to the several catastrophic problems.

A common mistake made by the users, while making a dual boot system, is selecting “prepare hard drive” option. This option appears you when you install Windows operating system on a Linux system, in order to make it multi boot.

When you use this option, all of the hard drive partitions and stored data gets deleted. After that new partitions are created and the operating system is installed. When the installation will complete, you will have a blank hard drive without any operating system and data. Everything, which was previously stored on the hard drive, will be deleted.

Data loss and hard drive partition loss is the worst case scenario which a computer user, either general or professional, could face. It can cause several nightmares and can possibly put you out of the business.

In such circumstances, it becomes really important to recover your precious data from the formatted hard drive to save you and your business. The data recovery in these cases needs to be performed for the Linux data.

The data recovery Linux is possible through the use of Linux data recovery software. Linux recovery software is the applications, offered by the several data recovery companies, to handle all the data loss situations.

A powerful data recovery Linux software does a thorough scan of the hard drive and extracts data up to the maximum level of possibility. To ensure the absolute Linux data recovery, selecting powerful Linux recovery software of trusted brand is worth.

Stellar Phoenix Linux Data Recovery software is the most influential hard drive recovery software provided by the most trusted name of the data recovery industry- Stellar. This software is able to attend all the data loss scenarios and recover data in a quick and easy way.

This Linux Recovery software is extremely powerful and easy to use so that you can carry out Linux data recovery without having any sound technical knowledge. This software supports all the Linux file systems such as Ext2, Ext3 and ReiserFS.