Can fdutils be used to make some sectors ( but not all ) on a floppydisk unreadable ( i.e. give an I/O error when read from /dev/fd0 ) ? This can be used to test and debug dd and maybe other utilities ( for data recovery etc ) The noerror option of dd is ( was ?? ) buggy under some conditions , but is is imposible to reproduce/debug/test without broken disks.
I don't know much about the low-level structure of floppy disks but I hope that something like : CRC errors , sectors with unexpected lenght , sectors with unexpected numbers , sectors spacing errors can be created by software. Using different formats for tracks may be a quicker solution , but it will be nice ( and better for debuging ) to be able to make individual sectors unreadable. For more details on the dd bug see this : http://mail.gnu.org/archive/html/bug-coreutils/2003-08/threads.html#00105 http://mail.gnu.org/archive/html/bug-coreutils/2003-09/threads.html#00099 http://mail.gnu.org/archive/html/bug-coreutils/2003-10/threads.html#00069 _______________________________________________ Bug-coreutils mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-coreutils
