April 07 2011

?no Such File or Directory? Error in Linux

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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.

February 22 2011

Interrupted fsck Operation Causes Data Loss in Linux

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In Linux operating system, fsck is a useful utility that helps you to check file system integrity and fix the errors. It is helpful particularly in case of file system corruption, dirty system shutdown and operating system related issues. When improper system shutdown happens, fsck runs when you reboot the system and check file system integrity. But if fsck process gets terminated due to improper system shutdown or power failure, you might come across serious data loss issues. In such circumstances, you are required to opt for effective and powerful Linux Data Recovery solutions.

In a practical scenario where fsck process gets interrupted due to power outage, when you restart the system, all of your hard drive volumes are found to be inaccessible. It cause critical data loss situations. When you try to sort out the problem by using fdisk command on Linux hard drive, you see following message: “Warning: invalid flag 0×0000 of partition table 4 will be corrected by w(rite) Command (m for help): p Disk /dev/hdb: 203.9 GB, 203928109056 bytes 255 heads, 63 sectors/track, 24792 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System Command (m for help):”

Cause

As stated in the above error message, the problem is caused by corruption to partition table. It is an important data structure of Linux operating system that stores important information about hard drive partitions/volumes. It is a 64-byte table, which store four partition entries, 16 byte for each. Damage to the partition table means your operating system could not locate partitions on hard drive and thus can not access them. In other means, you need to carry out Data Recovery Linux for fixing this issue.

Resolution

In order to work around this issue, you need to format the hard drive and reinstall Linux operating system. It will replace the damaged partition table with new one, after that system will work perfectly. But formatting the drive would remove all the data from it and you face serious data loss situations. Linux Recovery in such situations is possible using commercial Linux Data Recovery software. The applications are completely safe and easy to use and perform absolute recovery in most of the data loss situations. Stellar Phoenix Linux Data Recovery is the most comprehensive solution for all types of data loss situations. It recovers lost data from Ext4, Ext3, Ext2 and ReiserFS file system volumes. The application is usable with all major distributions of Linux operating system.

February 10 2011

Any instance of data loss in your LINUX hard drive-Solution available

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Among the tech geeks, LINUX operating system based computers are considered more robust and safe in terms of data security, as the LINUX versions are more often updated with technology changes. Moreover, their frequent upgradation, keeps them comparatively free from virus/ malware intrusion. These are the few points backing the LINUX systems against some of the usual problems and thereby loosing valuable data. However, hard drive of a LINUX based computer, the major physical component that stores the data, can go wrong to take down significant amount of data with it. Such situation demands techniques, such as LINUX recovery or LINUX hard drive recovery to recover back your valuable data from the troubled drive.

Components inside a hard drive & why it fails:

A hard disk consists of several mechanical and electromechanical components, such as head, platter, motor, PCB etc. Be it a mechanical failure, electronic failure, firmware failure or any logical failure, if your hard drive fails due to any of the reasons, the data contained in it becomes inaccessible. In a number of occasions, the hard drive doesn’t have any physical problem and due to some logical problem, such as virus/malware infection, formatting, file system corruption or operating system malfunction, the data in the drive remains unavailable.

Do s & Don’t s regarding hard drive recovery:

Never try to open your damaged LINUX drive under any instance of data loss. Furthermore, never try coping new files, fragmenting etc, as the data inside the disk may get overwritten and hence, will go beyond the scope of recovery. Moreover, remember that, the data in the drive is never permanently lost and it can be safely recovered by the help of LINUX hard drive recovery technology.

Advanced operating systems like LINUX have inbuilt commands that can detect and repair errors to make your hard drive into working condition. ‘fsck’ is such a command, which helps to scan the LINUX drive for any possible corruption or damage and repair the same in order to recover the data. However, if the command fails, you have to restore your data from the updated backup, failing to which only one option is left to recover your invaluable data, that is to run a LINUX recovery software.

These LINUX recovery software are well advanced in their mechanism to dig into your troubled LINUX hard disk and recover your data irrespective of the hard disk type, make or model. Moreover, the operation is so simple that you needn’t have to worry a little.

January 27 2011

Partition Resizing in Dual-Boot System May Cause Data Loss in Linux

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Hard drive resizing a common practice for most of the computer users, who prioritize the effective management of data. Most of the computer operating systems, including Windows and Linux provide inbuilt utilize to manage hard drive partitions. But in some situations, generally in a dual-boot system with Windows and Linux, partition resizing in Windows may damage the Linux partitions and lead to critical data loss situations. In such critical situations, you are required to opt for Linux Data Recovery to retrieve data from damaged Linux hard drive volumes.

Consider the following scenario. You resize your Windows Vista partition using in-built Disk Manger tool to free up some hard drive space. Then you install Linux on the newly created Ext4 hard drive partitions. At last, you create another NTFS file system partition for storing data that you formatted in Windows Vista and end up with a partition scheme that is similar to the following one:

sda1 (primary) Hidden (Recovery)
sda2 (primary) Vista C:\ (NTFS)
sda3 (primary) Linux \ (Ext4)
sda5 (extended) Swap Swap (Swap)
sda6 (extended) Data D:\ (NTFS)

Your systems works properly until you download and install security updates in Windows Vista. After applying the updates, when you boot your Linux system next time, fsck gives you a number of error messages about the multiply-claimed blocks by the Inodes of udev rule files. Udev corruption creates a number of issues with your Linux computer and renders your valuable data inaccessible.

In Linux operating system, udev is a device manage for 2.6 series of kernel. It primarily manges the device nodes in /dev. This is successor of the hotplug and devfs that meas it handles /dev directory and all the user space actions.

In such critical situations, you need to replace the damaged kernel files or even the kernel. It is possible by formatting the hard drive and reinstalling operating system. Although, formatting removes all of the hard drive errors, but also delete all the files from hard drive. In Such scenarios, you require Data Recovery Linux to extract data from formatted hard drive.

The Linux Data Recovery is possible through third-party applications, known as Linux Recovery Software. The tools perform extensive scan of entire hard drive and extract all the data from it. With rich graphical user interface and read-only conduct, the applications are easy and safe to use.

Stellar Phoenix Linux Data Recovery is a comprehensive software to ensure absolute and quick recovery of all your lost data from Ext4, Ext3, Ext2, FAT12, FAT16 and FAT32 file system volumes. The application works will most of the major distributions of Linux operating system including SUSE, Ubuntu, Red Hat and Fedora.

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December 08 2010

Partition Resizing in Dual-Boot System May Cause Data Loss in Linux

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Hard drive resizing a common practice for most of the computer users, who prioritize the effective management of data. Most of the computer operating systems, including Windows and Linux provide inbuilt utilize to manage hard drive partitions. But in some situations, generally in a dual-boot system with Windows and Linux, partition resizing in Windows may damage the Linux partitions and lead to critical data loss situations. In such critical situations, you are required to opt for Linux Data Recovery to retrieve data from damaged Linux hard drive volumes.

Consider the following scenario. You resize your Windows Vista partition using in-built Disk Manger tool to free up some hard drive space. Then you install Linux on the newly created Ext4 hard drive partitions. At last, you create another NTFS file system partition for storing data that you formatted in Windows Vista and end up with a partition scheme that is similar to the following one:

sda1 (primary) Hidden (Recovery)
sda2 (primary) Vista C:\ (NTFS)
sda3 (primary) Linux \ (Ext4)
sda5 (extended) Swap Swap (Swap)
sda6 (extended) Data D:\ (NTFS)

Your systems works properly until you download and install security updates in Windows Vista. After applying the updates, when you boot your Linux system next time, fsck gives you a number of error messages about the multiply-claimed blocks by the Inodes of udev rule files. Udev corruption creates a number of issues with your Linux computer and renders your valuable data inaccessible.

In Linux operating system, udev is a device manage for 2.6 series of kernel. It primarily manges the device nodes in /dev. This is successor of the hotplug and devfs that meas it handles /dev directory and all the user space actions.

In such critical situations, you need to replace the damaged kernel files or even the kernel. It is possible by formatting the hard drive and reinstalling operating system. Although, formatting removes all of the hard drive errors, but also delete all the files from hard drive. In Such scenarios, you require Data Recovery Linux to extract data from formatted hard drive.

The Linux Data Recovery is possible through third-party applications, known as Linux Recovery Software. The tools perform extensive scan of entire hard drive and extract all the data from it. With rich graphical user interface and read-only conduct, the applications are easy and safe to use.

Stellar Phoenix Linux Data Recovery is a comprehensive software to ensure absolute and quick recovery of all your lost data from Ext4, Ext3, Ext2, FAT12, FAT16 and FAT32 file system volumes. The application works will most of the major distributions of Linux operating system including SUSE, Ubuntu, Red Hat and Fedora.

Manika Batta a student of Mass Communication doing research on Linux data recovery software. He is also a freelancer for http://www.data-recovery-linux.com/

November 20 2010

Interrupted fsck Operation Causes Data Loss in Linux

Tagged Under : , , , , , , , , , , , , , , , , , , , , , , , , , ,

In Linux operating system, fsck is a useful utility that helps you to check file system integrity and fix the errors. It is helpful particularly in case of file system corruption, dirty system shutdown and operating system related issues. When improper system shutdown happens, fsck runs when you reboot the system and check file system integrity. But if fsck process gets terminated due to improper system shutdown or power failure, you might come across serious data loss issues. In such circumstances, you are required to opt for effective and powerful Linux Data Recovery solutions.

In a practical scenario where fsck process gets interrupted due to power outage, when you restart the system, all of your hard drive volumes are found to be inaccessible. It cause critical data loss situations. When you try to sort out the problem by using fdisk command on Linux hard drive, you see following message: “Warning: invalid flag 0×0000 of partition table 4 will be corrected by w(rite) Command (m for help): p Disk /dev/hdb: 203.9 GB, 203928109056 bytes 255 heads, 63 sectors/track, 24792 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System Command (m for help):”

Cause

As stated in the above error message, the problem is caused by corruption to partition table. It is an important data structure of Linux operating system that stores important information about hard drive partitions/volumes. It is a 64-byte table, which store four partition entries, 16 byte for each. Damage to the partition table means your operating system could not locate partitions on hard drive and thus can not access them. In other means, you need to carry out Data Recovery Linux for fixing this issue.

Resolution

In order to work around this issue, you need to format the hard drive and reinstall Linux operating system. It will replace the damaged partition table with new one, after that system will work perfectly. But formatting the drive would remove all the data from it and you face serious data loss situations. Linux Recovery in such situations is possible using commercial Linux Data Recovery software. The applications are completely safe and easy to use and perform absolute recovery in most of the data loss situations. Stellar Phoenix Linux Data Recovery is the most comprehensive solution for all types of data loss situations. It recovers lost data from Ext4, Ext3, Ext2 and ReiserFS file system volumes. The application is usable with all major distributions of Linux operating system.

Author is researching on error of linux operating system that become the cause of data loss. For lost linux data recovery author suggested to use linux recovery software to recover lost linux data.

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August 28 2010

Recovering Linux System After Using Fsck on a Mounted System

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Are you finding difficulties in mounting your Linux system disk? The problem could be due to corruption in the file system. To address such issues, Linux OS provides fsck utility. It is a command-line utility, which checks integrity and consistency of the Linux file system. In addition, it finds errors and fixes them, if possible. However, if you run this utility on a mounted file system, then you may not be able to access the data at all. In such cases, you should use a third-party Linux data recovery software to perform data recovery Linux system.

Consider a scenario wherein you have accidentally run fsck on a mounted Linux OS. The inode root gets damaged and all inodes start calling similar blocks. When you try to mount the volume after fsck, the following error message is discovered:

“Mount: wrong fs type, bad option, bad superblock on /dev/hda1, missing codepage or helper program, or other error. In some cases useful info is found in syslog – try dmesg | tail or so”

When you run \dmesg\, as suggested in the error message, another error message may be displayed, that is:

“ext3-fs: corrupt root inode, run e2fsck”

And when you run e2fsck, yet another error message is displayed, that is:

“Root inode is not a directory. Clear?”

Once you press ‘Y’ and proceed with the process, the parent entry of each inode from the root directory will be deleted. The root inode will attempt to recover but if it fails, another error message will be displayed, that is:

“Cannot Allocate Root Inode”

After this error message, you will not be able to access your system.

Cause:

This behavior is caused due to corruption of the file system, superblock, root inode, or any other Linux data structure. Because of this, the OS cannot locate the hard disk volumes.

Resolution:

To sort out this problem and perform Linux data recovery, you should reformat the hard disk and reinstall the Linux operating system. However, that would invariably mean that your valuable data will be lost. In such cases, you should use a third-party Linux recovery to recover lost data. Such tools are able to recover lost data safely by using fast yet sophisticated scanning algorithms.

Maria Peter a student of Mass Communication doing research on Data recovery Linux, Linux Data Recovery software And Ext2 Recovery.she is also a freelancer for http://www.data-recovery-linux.com/

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