'Multiply claimed block' Linux Error and Recovery

Linux supports file systems like Ext2, Ext3, ReiserFS etc. They follow hierarchical directory structure, where everything starts from a root directory that is represented by ´/´. The root directory then expands into sub-directories. As compared to Ext2 file system, Ext3 and ReiserFS are less prone to corruption. It is because they both support file system journaling and can replay journal to recover from unexpected crashes. But in cases of severe corruption, you need to use tools like fsck to repair the file system or ultimately format the partition or volume. To restore the lost data, you need to use an updated and valid data backup. But, if data backup itself gives errors or proves incomplete to deliver the required information, Linux Data Recovery tools can come to the rescue to recover your lost data.

Consider a scenario, you try to start a Linux system and receive a set of error messages as:

"Multiply claimed block"

The boot process fails with this error message and you can´t access the data.

Cause

When your system starts and it doesn´t find the file system in good state, it runs fsck check. This error message is returned by fsck check, when it finds the file system inconsistencies. File system can get corrupt because of unexpected shutdown, virus infection, network errors, hardware issues and other similar reasons.

Solution

To solve the ´Multiply claimed block´ error, you need to follow these steps:

You need to manually run the fsck command. It can repair file system consistencies like the ones that occur when file system is unmounted or mounted as read-only.

If running fsck doesn´t resolve the issue, you need to reformat the hard disk and reinstall the operating system. This process recreates complete file system structure and also deletes all the data. In such cases, you need to use the recent data backup in order to restore the lost data. But in some cases, data backup can be corrupt or incomplete. To recover data during such circumstances, you can use commercial Data Recovery Linux applications.

Linux Recovery software are advanced applications that use advanced scanning procedures to safely recover your lost or inaccessible data. Such software are available with interactive interface together with developed features to assist you.

Stellar Phoenix Linux Data Recovery offers powerful Data Recovery Linux solutions. It supports Ext2, Ext3 and ReiserFS file systems based Linux partitions and volumes. The software can be used with almost all Linux distributions as SlackWare, TurboLinux, SUSE, Mandrake etc. It gets installed on Windows (Windows Vista, XP, 2003 and 2000) and the affected Linux hard drive should be connected as slave.