mbadblocks(1)               General Commands Manual              mbadblocks(1)

       mbadblocks - tests a floppy disk, and marks the bad blocks in the FAT

Note of warning
       This  manpage  has  been  automatically generated from mtools's texinfo
       documentation, and may not be entirely accurate or complete.   See  the
       end of this man page for details.

       The  mbadblocks  command  is  used  to  mark some clusters on an MS-DOS
       filesystem bad. It has the following syntax:

       mbadblocks [-s sectorlist|-c clusterlist|-w] drive:

       If no command line flags  are  supplied,  Mbadblocks  scans  an  MS-DOS
       filesystem  for  bad blocks by simply trying to read them and flag them
       if read fails. All blocks that are unused are scanned, and if  detected
       bad are marked as such in the FAT.

       This  command  is  intended  to be used right after mformat.  It is not
       intended to salvage data from bad disks.

Command line options
       c file
              Use a list of bad clusters, rather than scanning for  bad  clus-
              ters itself.

       s file
              Use  a  list  of bad sectors (counted from beginning of filesys-
              tem), rather than trying for bad clusters itself.

       w      Write a random pattern to each cluster, then read  it  back  and
              flag  cluster  as bad if mismatch. Only free clusters are tested
              in such a way, so any file data is preserved.

       Mbadblocks should (but doesn't yet :-( ) also try to salvage bad blocks
       which are in use by reading them repeatedly, and then mark them bad.

See Also
       Mtools' texinfo doc

Viewing the texi doc
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              lowing commands:

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       *      To generate a html copy,  run:

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       *      To generate an info copy (browsable  using  emacs'  info  mode),

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mtools-4.0.18                       09Jan13                      mbadblocks(1)
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