README.dosfsck 2.3 KB

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