Perhaps, many of the Linux users have faced a condition when the particular mounted partition may refuse to unmount, when they try to do so. The error messages which state that the device is busy may pop up, perhaps this is being accessed by other users at that time.

But with Linux, you can make use of certain commands to forcedly unmount the partition. Actually, so that you may not need Linux recovery, these restrictions are necessary when any other user is accessing it. However, the critical conditions may arise when this is not accepted, so you can make use of these commands. On the other hand, the incorrect use or the mere mistake can again make you feel need of Linux data recovery.

• At first, find out which processes are moving with the device/partition, through the command like:

# lsof | grep ‘/dev/sda1′

Where /dev/sdb1 is the device name.

• You will get an output of the command which will show the process using the device. Just stop the process and then try to unmount using # unmount /dev/sda1 command. –l option can also be used with for lazy unmount. This will cleanup all refrences to the file system

• Now suppose that it is mounted on /mnt directory, then you can forcefully have the desired process through the following command:

# fuser -km /mnt

Here –k kills the file accessing process and –m is the file on a mounted file system or a block device.

As has been stated earlier too, these can affect your data, so better be prepared for any such mishappening. Be sure to run the commands if you are sure of, else to fall for data recovery Linux. The open files may get lost and the programs, which access the files after all has been done, can get error.

If you are an unfortunate user to lose data as such, make use of Linux data recovery software as no other option will do. Linux recovery software scan the drive and recover each bit of the information.

Stellar Phoenix Linux Data Recovery software is the most trustworthy product for getting data recovery Linux. The software is the product of great intellectual effort and can scan the drive by using most powerful scanning algorithms.

You can get Linux recovery for all the files, even system files. The supported file systems include Ext2, Ext3 and ReiserFS file systems.

By: shally spears

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In Linux the Ext2 and ext3 file systems space is categorized into blocks, which are further organized block groups. There is particular data structure for each group which defines it and contains valuable information, called group block descriptor. The data structure is assigned to each block groups so as to access it and it also includes inode bitmap, inode table and blocks bitmap location information. The task of Group descriptors is to take consecutive places and collectively form group descriptor table.

If there is a corruption in group descriptors, the whole file system is taken as damaged. Corruption usually results as a result of unexpected system shutdown or virus attack. In case they are corrupt, system may not boot at all or show errors like:

“EXT3-fs error: ext3_check_descriptors / group descriptors corrupted”

To each block group, table of group descriptors is placed just after the copy of superblock. To avoid Linux Data Recovery needs while file system corruption, group descriptors for each block group are duplicated. While normal run, system uses only first copy of group descriptors.

The user can use fsck and go for a repair of file system corruption in such cases. But this command cannot remove errors in case of extensive damage. Then, the last solution remaining with the user is to recreate whole file system by formatting the drive. But prior doing this, the user needs to backup all the required data.

The backup must be complete and in a proper manner. After the completion of backup, the user should check for its status. Also, it is recommended to check if backup contains all required files. However if backup is found to be incomplete or unproductive, we can use Linux Recovery applications to extract lost data.

Linux Data Recovery software scans and recovers lost data from the affected media. These applications carry out Data Recovery using powerful scanning algorithms.

Although are so many applications are available for Linux data recovery but the software provided by the Stellar i.e.; Stellar Phoenix Linux Data Recovery is one of the most powerful and easy to use Linux Recovery software. It can be used for ext2, ext3 and ReiserFS file system based disks. This Data Recovery Linux software has graphically rich interface. It offers efficient scanning and safe data restoration options. The application can be used for most of Linux distributions for Linux Data Recovery.

By: Garry Thomson

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ReiserFS is the Journaled file system used for the Linux operating system. For the various features of this file system like metadata- only journaling, tail packing and online resizing, it is well adopted by the users who rely on it as the repository of data references.

So the reliance indicates that how critical it is that the integrity of the file system may remain maintained and depart from any corruption issues. But on the contrary of the ideal scenario, the corruption in this file system may occur, which can force you to think about Linux data recovery solution, as all the references of the stored data get wiped out with the corruption of the file system.

The unexpected system shutdown, virus attack like problems may craft this scenario of data loss. At the time of corruption, the popped up screen may suggest you to use ‘reiserfsck-rebuild-tree’, but one should be aware of the fact that at the point of file system corruption, attempting to rebuild the tree may corrupt the existing file more harshly and thus creating the critical obstacles for Linux recovery. New entries may be introduced with the gibberish contents.

Some of the other error messages may indicate that something is going fishy with the file system and thus the proper fix is needed to be deployed. After this, the data remains inaccessible as all the entries of the data gets removed, giving you a hard drive which appears particularly empty, which in reality is not.

For data recovery Linux, only the proper mechanism is required. The data is still there on the hard drive and can be fetched out with the suitable algorithms. The Linux data recovery software can well perform this from their targeted scanning algorithms.

In case of file system corruption, the Linux recovery must not reference the file system, as this has been refreshed and thus the feature like RAW File Recovery must be there in the software to cope the particular situation.

Data recovery Linux software avail the interactive user interface to the users and are available for different file systems. With the varying set of features, these Linux recovery products maintain the integrity of the data.

Stellar Phoenix Linux Data Recovery software is the most developed and advanced data recovery utility which follows the superb mechanism to scan the affected hard drive with the well-built algorithms. The software supports Ext2, Ext3 and ReiserFS file system and offers you complete and valuable Linux data recovery options.

The RAW File Recovery option of the software is valuable for the file system corruption like issues. This data recovery Linux software can recognize each file type.

By: Dereck J

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The amount of information that becomes available each year is incredible, growing in leaps as technology evolves. Hosting all that information isn’t an easy task, as there are a lot of things that can happen, including being deleted, lost, corrupted, inaccessible or formatted.

If that data is important to you, then you can have a big problem. The next step would probably be to look for a software that you can use to recover your lost data. You can use the data recovery process for that purpose. There are data recovery options both for Linux and Windows.

You can use Linux data recover software to get your information back, in a number of different cases:

- You lost folders or files on Linux

- Your hard drive was formatted

- Your operating system was corrupted or it crashed

- A lost or deleted volume

You might be wondering by now what the Linux data recovery software can do.

It’s capable of doing a number of types of recovery process.

- Ex3 and Ex2 Data Recovery

- Recovery of a Linux Partition

- Recovery of a Linux Formatted Disk

- ReiserFS File System Recovery

- Recovery of Linux Deleted Files

The Linux data recovery software can do all the things I mentioned above. The strong algorithm behind this software will find all the corrupted, formatted, lost, deleted or inaccessible folders and files.

After it finds those files, the software repairs them and you can use them again. In the end, the files that were recovered will be put in the same place where they were before, so you can use them again.

If you keep getting error messages, you might have some problems with corrupted files on your Linux based computer. Some of the possible error messages are:

1. Unknown terminal type Linux and similar

2. Cannot read the table of mounted file systems

3. Cannot initialize drive X and many more.

4. Maximum count Reached

5. Internal Compiler Error

If you get one of the messages mentioned here, start the Linux data recovery software and try getting your files back. Download or buy the program, install it and start it.

By: Ricky Lim

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In Linux or any other UNIX-based operating system, the home directory is special file system directory that stores personal data of a particular user. Only the given user has authorization to access home directory.

Using home directory, you can separate the user data from system data. It avoids the redundancy of data and makes the backup process relatively simple. It also makes your data secure from the viruses and other malicious programs in other directories.

In Linux computer, user’s home directory holds all the documents, files, graphics and personal data. The user could also keep added software that might not have installed on system as a whole.

The home directory can be organized with the help of sub-folders, at user’s preference. The data stored in home directory is confidential and if user wants, it could be shared with other users.

In this way, you can see the importance of home directory. But sometimes when you log into your home directory, you may encounter the error messages like:

“Shell-Init: Permission Denied”

Or

“end_request: I/O error”

After these error messages, you can not enter into the home directory and could not access data from it. This behavior might occur due to missing or corrupted system files, directory structure, metadata structure and similar reasons.

No matter what the cause of this problem is, the ultimate result would be the inaccessibility and loss of your valuable data. To get your data back in such cases, you need to perform Linux Data Recovery.

You can have easy and automated Linux Data Recovery using  data recovery Linux software. These software works by thorough scanning of hard drive, locating your data and finally recovering it.

Stellar Phoenix  Linux Data Recovery software is the most excellent solution for all your Linux Recovery needs. This robust Linux Data Recovery software uses influential scanning mechanisms to retrieve your lost data from Ext2, Ext3 and ReiserFS file system based Linux drives. It supports Linux Data Recovery from most of the Linux flavors.

By: Simpson Raid

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When you try to shut down your Kubuntu Linux system, using KDE (K Desktop Environment), KDE seems to shut down your computer without any issue, but then your screen becomes black and your system freezes without showing any error messages and getting towards shut down. In this case, you have to press reset button and do hard reboot.

KDE is a free desktop environment for Linux computers. The objective of this software is to give basic desktop features for daily needs of users as well as documentation and tools for developers to design stand alone applications for their systems.

After this behavior, when you restart your computer, you have to use fsck command for checking hard drive. It can recognize various errors related to file system and other disk data structures.

After this problem, you might experience two types of behavior, depending upon the effects of a hard reboot and severity of damage:

All the system settings may get lost with basic ones like desktop wallpaper, styles and taskbar layout. You may also lose other things like Kmail accounts, Kaddress book, Kopete settings, Amarok settings and sometimes your KDE Wallet (tool to store passwords on KDE system) gets corrupted.

fsck can’t fix the errors and your system does not boot up. You can not access data from your hard drive and thus encounter the daunting situations of data loss.

In case of data loss, you need to opt for linux data recovery to save your critical data. In such scenarios, Linux Data Recovery is possible through Linux Recovery software.

Linux Recovery software are specifically designed to scan your hard drive, locate the lost, missing or inaccessible data and recover it. You can easily use these software without any prior sound technical knowledge.

Stellar Phoenix Linux Data Recovery is the most comprehensive and commanding  linux recovery tool that ensures efficient Data Recovery Linux in all cases of data loss. It supports recovery from Ext2, Ext3 and ReiserFS file system based Linux volumes. It is compatible with most of the Linux distributions including Kubuntu.

By: shally spears

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When you run fsck on your Linux file system’s physical volume, sometimes you may encounter certain error messages. These error messages prevent you from accessing data from a particular volume.

In such situations, technical experts recommend to use ‘pacman’ tool to upgrade the kernel and reboot your system to complete the operation.

Pacman is a Linux tool that is used to manage the applications. It uses simple files in package format and organizes text-based package database. It is useful in adding, removing and upgrading packages in Linux system.

After updating the kernel, when you attempt to reboot the system, sometimes your system may get stuck during the boot process. In place of loading GRUB (Grand Unified Boot loader) and booting, your system just tries to process the required information, showing “loading GRUB” message.

In such situations, when you try to boot your system using floppy disk, you may encounter the following error message:

“ERROR: (device hda1): XT_GETPAGE: xtree page corrupt

ERROR: (device hda1): XT_GETPAGE: xtree page corrupt”

After this behavior, when you again run fsck, you encounter the following error message:

“Errors detected in Primary File/Directory Allocation Table.

File system object FF65726 linked as: /var/run/random-seed

File claims cross linked block(s).

Cannot repair FF65726.”

Subsequent execution of fsck also detects several errors but fails to fix them.

Cause

This problem generally occurs due to corrupted GRUB or file system of your Linux system. In both of these situations, to carry out Linux Recovery, you need to format your hard drive and install fresh copy of both these data structures.

Formatting may delete all of your stored data from hard drive and you need to go for third party Linux Recovery tools to get Linux Recovery done. These tools are very powerful and are able to perform  Data Recovery Linux in all situations of data loss.

Stellar Information Systems Limited, the leading data recovery company globally, provides Stellar Phoenix Linux Data Recovery. It is the finest and most promising Linux Recovery software. It supports  Linux Data Recovery from Ext2, Ext3 and ReiserFS file system based volumes. Phoenix Linux Recovery is compatible with most of Linux distributions.

By: shally spears

About the Author:

When you run fsck on your Linux file system’s physical volume, sometimes you may encounter certain error messages. These error messages prevent you from accessing data from a particular volume.

In such situations, technical experts recommend to use ‘pacman’ tool to upgrade the kernel and reboot your system to complete the operation.

Pacman is a Linux tool that is used to manage the applications. It uses simple files in package format and organizes text-based package database. It is useful in adding, removing and upgrading packages in Linux system.

After updating the kernel, when you attempt to reboot the system, sometimes your system may get stuck during the boot process. In place of loading GRUB (Grand Unified Boot loader) and booting, your system just tries to process the required information, showing “loading GRUB” message.

In such situations, when you try to boot your system using floppy disk, you may encounter the following error message:

“ERROR: (device hda1): XT_GETPAGE: xtree page corrupt

ERROR: (device hda1): XT_GETPAGE: xtree page corrupt”

After this behavior, when you again run fsck, you encounter the following error message:

“Errors detected in Primary File/Directory Allocation Table.

File system object FF65726 linked as: /var/run/random-seed

File claims cross linked block(s).

Cannot repair FF65726.”

Subsequent execution of fsck also detects several errors but fails to fix them.

Cause

This problem generally occurs due to corrupted GRUB or file system of your Linux system. In both of these situations, to carry out Linux Recovery, you need to format your hard drive and install fresh copy of both these data structures.

Formatting may delete all of your stored data from hard drive and you need to go for third party Linux Recovery tools to get Linux Recovery done. These tools are very powerful and are able to perform  Data Recovery Linux in all situations of data loss.

Stellar Information Systems Limited, the leading data recovery company globally, provides Stellar Phoenix Linux Data Recovery. It is the finest and most promising Linux Recovery software. It supports  Linux Data Recovery from Ext2, Ext3 and ReiserFS file system based volumes. Phoenix Linux Recovery is compatible with most of Linux distributions.

By: shally spears

About the Author:

In a Linux computer, the file system is metadata that is used for organizing and managing data that is stored on the hard drive. The file system ensures integrity of data. Along with storing data files, the file system also holds and manages important information about files, directories and file system itself (such as date and time stamp, access permission, ownership, file size, storage location and so forth).

Since the file system attempts to work as asynchronous as possible, for avoiding the hard drive bottleneck, any interruption of this process may result into severe data loss. For example, consider this case:

What happens when your Linux computer crashes while working on a large file that is stored on a Linux file system based hard drive? There may be various options:

If the machine crashes after saving the file, you do not lose anything. Just restart your computer and you should be able to access it normally.

If the machine crashes before you save the file, you lose all your changes to the file but the data that was already in it remains intact.

If the computer crashes while writing data to the hard drive, the file becomes totally unusable. Your application can not open this file and thus you can not access the data.

If the machine crashes while your drive is writing to the metadata areas like the directory itself, your file system gets corrupted and you lose all your data on that particular drive volume.

To fix such scenarios Linux provides an inbuilt utility, known as fsck. It checks the file system integrity and can fix it in several cases. But this tool is not helpful in case of large file systems. It requires considerable time to perform the check on larger Linux volumes.

In such situations, it becomes extremely significant to perform Linux Data Recovery to get your data back. It is the process of retrieving lost data and can easily be performed using powerful linux recovery softwae such as Stellar Phoenix Linux Data Recovery.

Phoenix Data Recovery Linux is a commanding tool that ensures efficient Linux Data Recovery in the majority of data loss situations. It supports Linux Recovery from Ext2, Ext3 and ReiserFS file system volumes. This linux data recovery tool is compatible with SUSE, Red Hat, Kubuntu and several other Linux distributions.

By: Simpson Raid

About the Author:

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Linux is the most popular operating system so far as security and performance is concerned .It is a Unix-like operating system and is the best example of open source development and free software; generally all underlying Linux source code can be modified, redistributed and used freely by anyone. Red Hat Enterprise Linux 5.2 is the latest version of Linux operating system.

As we all know every operating system has its demerits or failures and can give errors at any time with out any prior information. There are some common error messages faced by Linux users while using this operating system. Some of the most common ones are the following:

• Unknown terminal type Linux.

• Unrecognized option ‘-m486′.

• bdflush not running

• cannot read table of mounted file systems

• Unknown terminal type Linux.

• Cannot initialize drive XYZ?

• EPERM Operation not permitted.

• Unrecognized option ‘-m486′.

• Modprobe can’t locate module, “XXX,” and similar messages.

• Mounting unchecked file system.

• EINTR Interrupted system call.

In most the situations given above a user faces any of the mentioned problems, it becomes difficult for him/her to access or manage his data. He/she won’t be able to do normal tasks which can otherwise be performed effortlessly. If the data which has been rendered inaccessible is important then it becomes essential to recover that data as soon as possible. In this case, he/she would need the help of Linux data recovery software.

Linux Data Recovery Software is an ultimate way out for all Linux related data recovery problems. It also recovers data from formatted hard drives also where file systems have been changed. It recovers lost logical drives and data from physical disk or any removable media.

Stellar Phoenix Linux Recovery software provides data recovery from Ext2, Ext2 and Reiser FS file systems of Linux operating system.

By: allen

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