rosapps/sysutils/dosfsck/README

   1 dosfsck, version 1
   2 ==================
   3
   4 WARNING: This is ALPHA test software. Use at your own risk.
   5
   6 dosfsck is the Linux equivalent of PC/MS-DOS' CHKDSK. It checks the
   7 consistency of PC/MS-DOS file systems and optionally tries to repair
   8 them. The tests dosfsck performs are described in the man page.
   9
  10 dosfsck needs header files from dosfs.9 (or later) to compile.
  11
  12 Before using dosfsck to repair a file system that contains data of any
  13 value, you should verify that dosfsck is able to correct all reported
  14 errors. (Except fatal errors and those reported as unfixable, of
  15 course.) In order to do this, run it with the -V option, e.g.
  16
  17    dosfsck -V /dev/sda1         (automatic check)
  18 or dosfsck -V -r /dev/sda1      (interactive check and repair)
  19
  20 dosfsck will perform two passes: in the first pass, inconsistencies are
  21 detected and a list of changes to correct the problems is generated. In
  22 the second pass, those changes are applied whenever dosfsck reads data
  23 from disk. Hence no fixable errors should be reported in the second
  24 pass if the first pass was successful.
  25
  26 Please notify the author if fixable errors are reported in the second
  27 pass.
  28
  29 After verifying that dosfsck appears to be able to perform the desired
  30 operations, either confirm that you want the changes to be performed
  31 (if dosfsck was started with -r) or re-run dosfsck with the -a option
  32 (if it was started without -r).
  33
  34 Please send bug reports, comments, flames, etc. to
  35 almesber@nessie.cs.id.ethz.ch  or  almesber@bernina.ethz.ch
  36
  37 - Werner
  38
  39 FAT32 and LFN support
  40 =====================
  41
  42 I've finally implemented some of the new features of MS-DOS
  43 filesystems: FAT32 and long filenames.
  44
  45 FAT32 is automatically detected and of course the different FAT
  46 structure is handled. (Internally many changes were needed, so 32 bit
  47 variables for all cluster numbers and 64 bit vars for offsets inside
  48 the filesystem.) New checks for FAT32 are most notably on the backup
  49 boot sector and the new info sector. Also the possibility that the
  50 root directory resides in a cluster chain (instead of in a static
  51 area) on FAT32 is handled.
  52
  53 dosfscheck also knows about VFAT long filenames now. It parses those
  54 names and uses them in listings etc. when available. There are also
  55 some checks on the (cruel) structure of how LFNs are stored and some
  56 attempts to fix problems.
  57
  58 - Roman <roman@hodek.net>
  59
  60 BTW, version 2 isn't ALPHA anymore :-)