In a Linux computer, partition table and superblock are two most important data structures. The superblock keeps record of the file system characteristics including its size, empty and filled block, location and size of Inode tables, block size and status. The partition tables stores all required information about hard drive primary partitions. When any of these data structure gets damaged, hard drive become inaccessible and all of the stored data can not be accessed. This behavior of Linux operating system results into critical data loss situations. At this point, to retrieve data your data from affected drive, you are required to carry out Linux Data Recovery using appropriate solutions.
In a practical scenario, when you run fsck on Linux hard drive to detect and fix file system errors, you might come across below given error message:
â€œThe file system size (according to the superblock) is xxx
The physical size of the device is xxx
Ext3 is a journaled file system and maintains a journal file to prevent instances of metadata corruption due to unexpected power outage. Due to its wide testing base and relative simplicity, the file system is considered to be safer than its counterparts. But it is not completely immune to crashes. At times, when using a Ext3 formatted drive, you might receive errors suggesting that system doesn't find any journal on the file system. As a solution, you might be compelled to reinstall the system. In such situations, you need to check the status of your backup that should be valid and completely updated to restore information from. But if you observe any backup related issues, Linux Recovery utilities should be used.
For an instance, while attempting to mount your Linux based hard drive, you might come across the similar error message:
â€œext3: no journal on filesystemâ€