| A superblock in UFS (Unix File System) volume is the | | | | The root cause for the occurrence of the above error |
| most critical part that contains vital information about | | | | message is the corruption of superblock. |
| the file system's geometry and behavior tuning | | | | Resolution: |
| parameters. Corruption of superblock primarily occurs | | | | To resolve the above error message and access the |
| due to overlapping disk partitions, operating system | | | | data, you will need to follow these steps: |
| malfunctioning, unexpected system shutdown, virus | | | | Run the format command, select the disk involved, and |
| infections and more. Once the superblock gets | | | | print out the partition information.format : N > partition |
| corrupted, the file system can not be mounted. This | | | | > print |
| results in inaccessibility of data stored in the hard drive. | | | | Run newfs command with the -N option to print out |
| To overcome such data loss situations, you need to | | | | the file system parameters, including the location of |
| restore the data from an updated backup. However, if | | | | backup super-blocks.newfs -N /dev/dsk/device |
| no backup is available or backup fails to restore the | | | | Select a super-block from a non-overlapping area of |
| required information, Sun Solaris Intel Recovery | | | | the disk and runfsck command with the new master |
| Software comes to rescue. | | | | super-block number.fsck -o b=NNNN /dev/dsk/device |
| As a practical scenario, when you attempt to boot Sun | | | | However, if both the procedure falls short to resolve |
| Solaris Intel operating system, you encounter the below | | | | the issue and you still encounter the same error |
| error message: | | | | message, then you will need to use powerful Sun |
| "BAD SUPER BLOCK: variable" | | | | Solaris Intel Data Recovery Software to recover the |
| The above error message indicates that the system is | | | | lost data. Such Sun Solaris Intel Recovery tools use |
| unable to read the superblock. After the above error | | | | advanced scanning mechanisms to recover your lost |
| message appears, the data saved in the hard drive | | | | files and folders. With highly interactive user interface |
| becomes inaccessible. In addition, you encounter the | | | | and advanced features, these tools are easy to |
| same error message each time you attempt to start | | | | understand without any prior technical knowledge. |
| your system. | | | | Such recovery applications recover the lost data after |
| Cause: | | | | fsck is unable to repair the system data structures. |