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Description of problem: I needed to write out a bunch of floppy image files with dd to /dev/fd0 and every first write to the next floppy would fail. Trying immediately again, would succeed. Version-Release number of selected component (if applicable): kernel-2.6.20-1.2944.fc6 How reproducible: all the time, tested on two different fc6 machines. Steps to Reproduce: 1. Insert a floppy. 2. $ dd if=/dev/zero of=/dev/fd0 count=1 bs=1000 data written out correctly: 1+0 records in 1+0 records out 1000 bytes (1.0 kB) copied, 0.0909503 seconds, 11.0 kB/s 3. remove floppy. 4. insert floppy back into drive. 5. $ dd if=/dev/zero of=/dev/fd0 count=1 bs=1000 error: floppy0: disk absent or changed during operation end_request: I/O error, dev fd0, sector 0 dd: writing `/dev/fd0': Input/output error 1+0 records in 0+0 records out 0 bytes (0 B) copied, 0.0209154 seconds, 0.0 kB/s 6. rerun dd command from step 5. write succeeds. Actual results: step 5. fails. Expected results: step 5. should succeed. kernel is confused. Additional info: Haven't had to use the floppy in awhile, but this worked correctly at some point in the past.
Is this still a problem? How about Fedora 7? I do not have an FC-6 box with a floppy, but RHEL-5 and F-7 seem ok in my testing (tried with stopped HAL).
Both machines are F7 now and the floppy works... you mention hal and I wonder if that was the cause of the original problem. Regardless, the disk change seems to work fine now with haldaemon running or not. thanks.