Tag: FSCK

Root Inode Corruption In Linux After Running Fsck On Mounted File System

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In Linux operating system, FSCK (File System Check) is a useful utility that allows you to examine the integrity and consistency of your Linux file system. The utility also offers you an alternative method to repair damaged file system and review the problems that have to be fixed on your file system. Though, this tool offers you with a number of advantages, running this command on the mounted Linux file system lead to file system corruption and data loss situations. In these cases, you need to go for Linux Data Recovery solutions to get your valuable data back.

In a practical situation, when you run FSCK command-line utility on an online Ext3 file system of Linux computer, you may come across the following error message:

EXT3-fs: corrupt root Inode, run e2fsck

After this error message, if you run e2fsck on same volume, you encounter below error message:

Root Inode is not a directory. Clear?

Above error message gives you two options to select from- Yes or No. If you select yes, it removes parent entry of each Inode in root directory and gives underwritten error message:

Missing ‘..’ in directory Inode

In these cases, you need to find out the cause root of the issue and then perform Data Recovery Linux by resolving it.

Cause

This issue occurs due to corruption to the file system, when you run FSCK tool on a mounted Linux file system. When above errors occur, you can not boot up your system and all of your precious data stored on Linux hard drive become inaccessible. If you need to run this file system consistency check utility, you should first unmount the file system.

Solution

In order to fix file system corruption issue, you need to replace damaged file system. It is possible through formatting the hard drive and reinstalling the operating system. Formatting resolves all of the disk related problems but also cause data loss and need Linux Recovery to be handled.

Recovery can easily be performed using third party Linux Data Recovery Software. The applications are able to handle most of the logical data loss situations. They thoroughly scan entire hard drive and extract all of the lost, missing and inaccessible data from it. Such recovery tools are easy and safe to use with simple user interface and non-destructive behavior.

Stellar Phoenix Linux Data Recovery is the most comprehensive tool to ensure absolute recovery in the majority of data loss situations. It recovers lost data from all major Linux distributions including Fedora Core, Red Hat, Ubuntu and SUSE. The software supports recovery from Ext4, Ext3, Ext2, FAT12, FAT16 and FAT32 file system volumes.

Group Descriptors Corrupted In Linux Operating System

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The EXT3 file system in Linux is divided into various block groups. Each block group further contains a data structure called group descriptors that contains critical information about the block. Corruption in group descriptors primarily occurs due to operating system malfunctioning, file system damage, malicious software like virus and more. Two major outcomes of corrupted group descriptors are unbootable system and inaccessible data. To successfully recover the lost data, restore it from the latest backup. In case, no recent backup is available or is invalid, you need to go for advanced Linux Recovery software.

Consider a practical scenario, where you encounter the below error message when you attempt to boot your system:

Uncompressing Linux:…Ok booting kernel

audit(xxx.x….x..:0) : initialized

EXT3-fs error (device hda3):ext3_check_descriptors:Block bitmap for grade 38 not int grade ( block 34799616)

EXt3-fs:group descriptors corrupted.

Mount: error 22 mounting ext3

pivot root ivot_root (/sysroot, /sysroot/initrd) failed: 2

unmount/initrd/proc_failed:2

kernel panic: No init found: Try passing init=0 to kernel

You encounter the same error message each time you attempt to boot your system. As a result of the above error, all your critical data becomes inaccessible.

Cause:

The above error message is encountered when group descriptors are corrupted.

Resolution:

To resolve the above issue and access the data, you need to use FSCK command. This command is mainly used to repair the EXT3 file system. But, if the file system has been badly corrupted, then this command fails to repair. In such circumstances, you need to recreate the file system again by formatting and reinstalling Linux. A clean reinstall of Linux will completely erase all data from the selected Linux volume. For complete and orderly recovery of data after reinstalling Linux, you will need to use powerful Linux Recovery software.

These Linux Data Recovery applications ensure comprehensive scanning of formatted Linux volumes by using powerful scanning algorithms. These recovery tools can recover and restore data after problems like group descriptors faults, Inode table damage and superblock corruption. They are built with highly graphical and interactive user interface that makes them easily understandable without prior technical skills.

Stellar Phoenix Linux Data Recovery is the most efficient and trust worthy Linux Recovery tool. It supports Ext2, Ext3 and ReiserFS file systems based Linux volumes. This read only Data Recovery Linux application gets installed on Windows (Vista, XP, 2003 and 2000) and the affected Linux drive should be connected as slave.