On a LINUX system, any file system corruption or damage is dealt with by running the fsck utility. Although the utility repairs the corrupted file system, on some occasions, especially after a freak shutdown, running fsck leads to more disastrous scenarios like data loss or hard drive inaccessibility. Sometimes the situation is so worse that you have to recover the lost or inaccessible data from valid backup or using any LINUX data recovery software.
The problem:
While working on a LINUX operating system, if any file system damage or corruption occurs, the fsck utility is used to check for the error and correct it. However, sometimes fsck fails and displays error messages. The affected drive or volume remains inaccessible and the error messages, which keep flashing on the screen, may be the following:
“CANNOT READ: DISK BLOCK block number: I/O ERROR”
A summary about ‘fsck’:
fsck is a system utility that comes with the LINUX operating system and is designed to check whether the file system is consistent or not. The utility can even repair damaged or corrupted file system. In addition, it provides options to interactively repair the damaged file system in a specific way or automatically fix specific problems without user intervention. Usually, fsck is run by the system administrator, as the repair process by fsck can sometimes cause serious data loss and corruption.
Possible causes behind such problem:
The cause can be anything from a sudden power failure or electrical power surge causing an unsystematic shutdown of the system.
Resolution:
The most possible way to successfully resolve the error is to format the LINUX system and perform a fresh installation of the operating system. However, it is the data on the drive related to the problematic file system that is of more value than simply resolving the error. Therefore, to recover the inaccessible data from the drive or volume, you need the help of any Fsck error recovery software.
Linux data recovery software are advanced utilities, which are meant to recover the corrupted, damaged, deleted or inaccessible data from any LINUX based drive or volume. The software is developed with an interactive GUI and is compatible with most currently available versions of the LINUX operating system.
