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