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Overriding lost or damaged superblock
In case of physical storage damage or data damage, main file system descriptor (superblock) could be lost or corrupted. In this case file system could not be detected or file system 'geometry' could be lost. Some file systems assume storing one or more backup copies of superblock so in case of loosing main superblock, data could be recovered using parameters from backup superblock. UFS Explorer have special tool to find these backup superblocks and 'turn on' them to be used as replacement of main superblock for the file system. To run the tool, right-click partition and choose 'Other file systems on this partition'. You will see window, shown at Figure 1.  Figure 1. Choose file system to use on partition. Initially, file systems list is empty. Click 'Scan' to search for any backup superblocks. Window shows all detected or reconstructed superblocks of currently selected partition. Columns show: File system type, superblock actual offset (in sectors), suggested file system offset (in sectors, from start of partition) and detection method. Sector offsets might be useful in case you need to dump/backup superblock from disk. To choose file system to use, double-click record or select is with mouse and press 'OK'. After this, standard 'File system: fast detect' is called to let you switch to newly selected superblock. If you need to return back to original superblock, run tool again and click 'Original FS'. IMPORTANT: UFS Explorer does not verify superblock for correct backup superblock offset, thus in case you select superblock of any 'embedded' file system or any other file system, not actually located on the partition, UFS Explorer may not read it and may not pick-up valid file system geometry. Please do not use this tool to find lost partition tables: use 'Scan disk for lost partitions' instead. Requirements
See also: How to find lost partitions, Data Access, Help topics. |