I am unable to use dd(1) to create floppies from image files under FreeBSD 5.3 REL. For example, I try to create boot.flp using dd(1). First I test the .flp file: orr:/home/richard$ md5 boot.flp MD5 (boot.flp) = 1ec944b87da4e2eef835439215348e64 orr:/home/richard$ grep boot.flp CHECKSUM.MD5 MD5 (boot.flp) = 1ec944b87da4e2eef835439215348e64 orr:/root# dd if=boot.flp of=/dev/fd0 dd: /dev/fd0: Input/output error 37+0 records in 36+0 records out 18432 bytes transferred in 4.518355 secs (4079 bytes/sec) This is a problem. I then boot into FreeBSD 5.2.1 under FreeSBIE. Using the same floppy disk and same physical hardware, I am successful: root@FreeSBIE:~# dd if=boot.flp of=/dev/fd0 2880+0 records in 2880+0 records out 1474560 bytes transferred in 48.104081 secs (30654 bytes/sec) root@FreeSBIE:~# mount /dev/fd0 /mnt root@FreeSBIE:~# ls /mnt .snap boot kernel.gz.split acpi.ko.gz kernel.gz.boot mfsroot.gz I am able to mount floppies and read them under FreeBSD 5.3, however. I have not had problems with earlier FreeBSD versions, until 5.3 REL. Hardware is an IBM Thinkpad a20p. Thank you. Fix: Unknown. How-To-Repeat: Try to use dd(1) to create floppies under FreeBSD 5.3 REL.
State Changed From-To: open->feedback To submitter: Is this still a problem with more recent versions of FreeBSD?
----- Forwarded message from Richard Bejtlich <taosecurity@gmail.com> ----- Same problem on 6.1-SECURITY 26 Apr 07. I even got a kernel panic when trying to write a test file to a MSDOS-formatted floppy. Thank you, Richard
State Changed From-To: feedback->open Feedback received. Apparently this is still a problem.