All posts tagged Fedora Core

Linux Disk Recovery After Disk Structure Corruption

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Linux is an open-source operating system that has various distributions, which include Fedora Core. It is an OS, which enables you to access latest open source applications. The OS uses a disk structure similar to various other Linux distributions and may face the same problem of corruption as others do. Corruption makes it inaccessible and unbootable, causing severe data loss. In such critical situations, you are required to opt for Linux data recovery solutions to get your valuable data back.

In a practical instance of the disk structure corruption in Fedora Linux OS, you may encounter the below error message when you reboot the Fedora operating system-based computer after it freezes at startup-

“EXT-fs: dm-0: couldn’t mount because of unsupported optional features (2000200) mount error 22 – mounting ext 3”

Subsequent to the above error message, you might get further error message that says-

“kernel panic – not syncing: Attempting to kill init.”

After this error message, Fedora operating system cannot detect and access Linux hard drive partitions when you try to perform data recovery Linux using Linux Rescue CD. When you try mounting the disk manually, it says that the disk has invalid arguments and thus it cannot be mounted.

Grounds of the problem As stated above, this problem occurs due to corruption to the logical structure of the Linux hard drive. It may also occur if disk data structures, like Superblock and file system, are damaged. Corruption might be the outcome of virus infection, improper system shutdown, operating system malfunction, and other similar reasons.

Resolution Use any of the below Linux recovery solutions to sort out this problem- Boot your Linux computer using the Rescue CD and then run pvscan command for checking the logical volumes. Run fsck -C -y /dev/hdXX command.

If none of the above Linux File Recovery methods work, you are required to format the disk and reinstall operating system.Although, formatting can fix all disk related problems, but it also cause serious data loss. In such situations, Linux disk Recovery software are required to retrieve lost data after formatting.

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.