Missing Precious Files in Linux

The forgetful nature of human can create several complications. Creation of the relevant files and forgetting them is the case that can happen to any of the Linux user. If you still remember the directory name, then by the hook or crook, you can find the specific file. But this creates delay a big problem if you can’t even remember the bit of information about the missing file.This can happen to anyone as none of us posses the pictorial memory.

So that’s for sure that one or the other time, you have undergone the experience of forgetting the path information of the precious file.For this purpose of finding the misplaced file, Windows offers you the find and search tool, where you can type the text or phrase of the filename and hence find all the files which contain this phrase as their filename part.

But the situation can be tricky if you don’t even remember the word or the phrase in the filename, then you need to go through the text of each file.Well in Linux, the whole scenario is somewhat different. Instead of the GUI support, in Linux the more emphasis is on executing the commands from the shell. Certain commands are there which can help you in finding those lost files whose information is slipping from your mind:

grep-lir :

This is the command to find the files whose related phrase is not been remembered apart from some text. The three switches: -1, -I and –r help you to output the name of the files containing the text, ignore the case while searching and to descend in the subdirectories respectively.

grep -i –n :

To find the files containing the keywords.

grep --with-filename --line-number `find -type f`’: This is the command to look the directory for the files containing the string

If your file is not found by either of the command, then the probable chances are there for the accidental deletion. Look in the ‘Trash Bin’ to locate the file, if you are unable to see the file text or phrase even after restoring all of them.
Then may be you have deleted it using the rm command or Shift+Delete key, inaccessible by Linux operating system.Now in this case the only cure to get the file back is to have the Linux recovery solution, practical through Linux recovery software.

File and data always reside on the hard disk regardless of the deletion method and can be recovered until overwritten. Linux data recovery software work on the same principle and deploy some specific algorithms to retrieve the lost information.

Data loss can be traumatic if the lost data is at the cost of your business. But the proper application of the data recovery Linux software would help you to come out of this ditch. The Linux data recovery is attempted by the software in an interactive manner and does a great job for recovering the data.

This Linux data recovery utility is made to be used for Ext2, Ext3 and Reiser FS file systems and for all the flavors of Linux operating system. Maintaining the integrity of the data, this data recovery Linux software offers you the intuitive user interface.

When System Detects an Error in Linux OS

When a system detects an error, out its scope the situation is called Kernel panic in Linux operating systems.When the unrecoverable state is detected by Linux, the kernel code can possibly call the panic function of sys/system.h and in turn may yield you error messages, similar to:

“Linux Kernel panic: VFS: Unable to mount root fs”

Kernel panic can result due to the bug in the call chain or may be due to the hardware faults or failure.

When the system gets processor expectations which can’t be handled with any means, kernel panic is an obvious symptom.Either the operating system or the hardware faults can become responsible for kernel panic to happen. However, attempting to read an invalid memory address can also create the problem which makes operating system inactive to do any operations.

This unstable state is targeted to prevent further damage to the data and the system.Hardware failure such as of RAM or the ALU malfunctions are still easy to handle. But those pointing to the hard drive failure and hence risking data at the end need a definitive cure of Linux recovery service.To cure these issues, replace the failed hardware, but the conditions when you need to replace the hard drive, needs Linux data recovery first.

However, in the other issues like operating system problems, you can use mkinitrd script which constructs a directory structure, acting as an initrd root file system. This will benefit you kernel module to load.At the worst case, the operating system reinstallation may be needed.

Surely, the cure is efficient but as the formatting result, this will delete all the data, placed in the primary volume of hard drive.Data recovery Linux in any of the case, either from the failed or the formatted hard drive requires a prominent way out. Data worth and any risk imply that you are playing with the business existence itself.

Linux Data Recovery software cures all the logical data loss problems with the superb scanning algorithms and eases the users with the interactive interface. This Linux recovery product is compatible with Ext2, Ext3 and Reiser FS file systems.

Data Loss while Fsck Check in Linux

In Linux OS the criterion of fsck is meant for preventing the data loss problems with Linux. Sometimes improper shutdowns, minor file system inconsistencies are the common problems with Linux operating system. But contrarily, serious data loss issues have been seen, when the user loses power when fsck is on its way of routine checkup.In some of the reports, when the user restarts the system, the partitions have been found to be inaccessible.

This is the critical situation of data loss as whole of the data appear to come to an end. For the further investigation of the problem, when the user runs fdisk on the partition, similar warning may be seen:

Warning: invalid flag 0x0000 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):

The message is meant to acknowledge you of the creepy act with the partition table of hard drive; as a result all the partitions have become inaccessible. Partition table is the 16-byte information, describing all the information about the hard disk partitions. Its loss or damage means that the operating system can’t locate and hence can’t access those partitions

The inaccessibility issues due to which the partitions are unable to yield data can be resolved using Linux recovery software. These utilities make scan of the hard drive to make the partitions and hence data accessible. Data recovery Linux is made possible in a non-destructive way without altering the contents.

The interactive interface adds to its qualities, making the process easier. Linux Data Recovery is the splendid product, designed to recover lost information from Linux. This Linux data recovery product is found to be compatible with Ext2, Ext3 and Reiser FS file systems. Having read-only nature and hence safe to the data, the application is known for its good quality Linux recovery results.

Data Loss In Linux Due to Damaged /etc/mtab and /etc/fstab

Linux file system is build up of various components and /etc/mtab and /etc/fstab are most important among them. For actual working of your file system and computer system, these data structures must be kept and in working state. Any damage to file system components may make it unusable and results into critical data loss condition. In order to recover your lost data in such conditions, you require to opt for Linux Data Recovery using appropriate solutions.

The /etc/fstab (short form of file system table) is a important directory of Linux operating system. This is a part of system configuration and it gives all of the available system hard disk, disk volumes and displays how they require to be integrate or initialized in Linux file system. It consists of detailed description of various file systems and is generally read by the 'fsck' and 'mount' commands. Mount command find the alternatives, which should be used when you mount any drive.

The /etc/mtab (contraction of mounted file systems table) is a Linux directory that contains all the mounted file systems on Linux OS. Usually, this is in a predefined format and automatically modified when the mount command is executed to identify the current file system and how it is mounted (whether automatically or manually).

In situation when these directories gets corrupted, you might not access your data and require data recovery Linux to get your lost data back. At the time of corruption, you might encounter the below error message:

“Cannot read table of mounted file systems”

This error message cause critical situations of file and directory inaccessibility in Linux system.

Root Cause

You might come across this behavior of Linux because of corruption to /etc/mtab or /etc/fstab directories. Due to corruption to these data structures, Linux file system can not be mounted and thus the hard drive volumes become inaccessible.

In all such cases,Linux data recovery come for your help. Recovery is best possible using powerful and advanced third-party Linux recovery software. They employ advanced and effective scanning mechanisms to thoroughly scan the damaged hard drive and extract all of the lost data from it.

The tools have interactive and simple graphical user interface. Thus they do not require sound and prior technical skills to perform recovery. With read-only and non-destructive behavior, the applications are safe to use and do not change original data.

Geom Error in Linux

When you boot your Linux system, GRUB (GRand Unified Bootloader) moves in few stages. Your system boots successfully if all these phases complete without any errors. But sometimes, you see that Linux system halts and an error message is printed at stage 1. In such conditions, you fail to access stored data and need to restore lost information from backup. However, if data backup is damaged, incomplete, or is not available, Linux recovery applications can be used as recovery solutions.

As a practical conditions, when you boot your Linux-based system, it gives the below error message at stage 1:

“Geom error”

Boot process stops and you can’t access the data.

Geom is the modular storage frame work that gives a standardized way in order to access storage layers. Its name represents impact on disk geometry.

Cause

Geom error occurs if the location of further stages is not present in the area that is expected by reading the disk with BIOS directly. Possible causes of this behavior are:

• LBA (Logical Block Addressing) is not activated or BIOS doesn’t have correct hard disk values

• The hard disk is not registered in BIOS

• You have changed hard disk geometry in BIOS

• You have moved hard disk or controller to another machine after installation

• BIOS is unable to detect complete hard disk capacity or can’t address cylinder of Linux boot partition

Resolution

You need to follow these methods to resolve the issue:

• Make sure that LBA is active in BIOS and all hard disk values are correct (these should match with that have been provided by manufacturer

• Check if hard disk is properly registered in BIOS

• Correct hard disk geometry configuration in BIOS

• You need to ensure that correct hard disk and controller are active

• If problem persists, reparation your hard disk and reinstall. This deletes all the data, so restore from backup.

If you find any problem with your data bakup, or if no backup is available, use Linux recovery tools. Such software provide complete Linux data recovery using safe, powerful and advanced scanning algorithms.

Mistaken Formatting in a Dual Boot System and Linux Recovery

A dual boot or multi-boot is a system in which two OS are installed on a single hard drive, knowing you boot from either of the OS. The boot loader is a program which allows you to have dual booting.

General combination of OS includes exercises in dual booting Linux and Windows. The dual booting gives you to use features and functions of both of the operating systems on a single computer. Dual boot systems are mostly useful for programmers and testers.

Although, dual boot systems are helpful but sometimes they can also cause many problems. A minor mistake made by the user while making a dual boot system can lead to the several critical problems.

A general mistake made by the users, while making a dual boot system, is selecting "prepare hard drive" option. This option gives you when you install Windows OS on a Linux system, in order to make it multi-boot.

When you use this option, all of the hard drive partitions and stored data gets deleted. After that new partitions are created and the OS is installed. When the installation will complete, you will have a blank hard drive without any operating system and data. Everything, which was previously stored on the hard drive, will be deleted.

Data loss and hard drive partition loss is the bad case scenario which a computer user, either general or professional, could face. It can result into several nightmares and can possibly put you out of the business.

In such situation, it becomes really important to recover your important data from the formatted hard drive to save you and your business. The data recovery in these situation require to be performed for the Linux data.

The data recovery Linux is possible through the use of Linux data recovery software. Linux recovery software is the applications, offered by the several data recovery companies, to handle all the data loss situations.

A powerful data recovery Linux software does a thorough scan of the hard drive and extracts data up to the maximum level of possibility. To ensure the absolute Linux data recovery, selecting powerful Linux recovery software of trusted brand is worth.

Recover Linux data When Partition Table Gets Damaged

Latest computers permits you to install two or more OS on single hardware. This configuration is known as Multi-boot (generally called dual-boot). You can use features of different OS and can work alone on them. In some conditions, where you use dual-boot configuration with Linux operating system, you may face serious issues of system metdata structure corruption that leads to serious data loss. At this situation, it become essential to go for Linux data recovery to get your mission-critical data back.

In a practical situation, you might come across following error message when you try to install Fedora Core to make your system dual-boot with any other Linux distribution:

The partition table on device is corrupted. To make new partitions it must be initialized, causing the loss of all data on this drive.

In such conditions, the partitions still boot properly. But under the System Tools-> Hardware browser, you just see a large green bar for hard drive. It does not show the hard drive volumes. When you run fdisk to perform data recovery Linux, you get following result:

Disk /dev/hdc: 100.0 GB, 100030242816 bytes
16 heads, 63 sectors/track, 193821 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
Partition 1 does not end on cylinder boundary.
Partition 2 does not end on cylinder boundary.
Partition table entries are not in disk order

Root cause

As sated in the first error message, this problem generally occurs due to corruption to the partition table. Partition table is the most important data structure of Linux OS that stores critical information about hard drive partitions. This information is required by the OS to access hard drive partitions.

In case of damage to the partition table, all of your critical data gets deleted and you require Linux recovery to get your data back. This is possible through Linux data recovery software.

These applications use advanced scanning algorithms to systematically scan the damaged hard drive and recover lost data from it. They have simple and interactive GUI to allow.