September 05 2010

Linux Data Loss Due to Inaccessible Home Directory

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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.

Simpson Raid is a freelancer for Stellar which offers file recovery software and file recovery programs for different OS and file system.

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July 29 2010

Bad Block At Beginning Of Inode Table May Cause Data Loss In Linux

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Are you unable to mount your Linux hard drive volume? Are you facing superblock, inode, or file system corruption like error messages while booting your Linux system? Such situations are caused by corruption of Linux hard drive metadata structures. This behavior of Linux operating system renders all your significant data inaccessible and leads to significant data loss. In order to get your mission-critical data recovered, you should opt for Linux Data Recovery solutions through reliable tools.

In a practical scenario, you may encounter the below error messages after copying your data through ddrescue command-line tool and running e2fsck utility:

“Superblock has a bad ext3 journal (inode 8).
Clear? Yes”

Or

“/dev/sdf was not cleanly unmounted, check forced.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Missing ‘..’ in directory inode 1785876.
Fix? Yes

Pass 3: Checking directory connectivity
Root inode is not a directory; aborting.
e2fsck: aborted
fsck.ext2 /dev/sdf failed (status 0×8). Run manually.”

After the above error message, you can not access your precious data from the hard drive. In order to get your lost data back, and to sort out these errors, you should perform Data Recovery Linux.

Resolution

The problem is caused by bad block at the starting of inode table. You can fix the problem by reconstructing root inode. It is quite easy to reconstruct the root inode, however the problem is that root inode needs to be placed at fixed location and currently a bad block is located there.

Forcing the hard drive to use spare block from its pool is possible, however a bad block is often an indicator of the beginning of hard drive crash. Thus, replacing the affected hard drive with new one is the safest way to recover from this situation. Use ‘dd’ command to copy data from old hard drive to new one. Then run e2fsck to create a new root directory on the new hard drive, and shift all the inodes, respectively.

If the above method does not solve your problem, Linux Recovery applications perform absolute recovery. They use high-end scanning techniques to methodically scan the entire hard drive and get all your precious data recovered. The Linux Data Recovery software come equipped with simple and rich graphical user interface to enable easy recovery.

Stellar Phoenix Linux Data Recovery is the most effective solution for all logical data loss scenarios. The software recovers Ext4, Ext3, Ext2, FAT12, FAT16, and FAT32 file system volumes. It is compatible with all major distributions of Linux operating system such as Red Hat, Debian, Fedora, SUSE, and Ubuntu.

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://ext3-file-recovery.data-recovery-linux.com/

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