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Under 1.5.19-4 on Windows 2000 SP4, the SCSI emulated CD-ROM device no longer works. I used to do: dd if=/dev/scd3 | md5sum in order to check that what I burned with cdrecord was the same as the ISO image. This now results in: dd: opening `/dev/scd3': No such file or directory /dev/scd3 is a USB attached CD writer. This worked fine under 1.5.18-1 Under 1.5.19-4, cdrecord -scanbus still reports the CD Writer correctly and cdrecord dev=2,0,0 will still write to the CD, it seems only to be /dev/scd[0-9] that no longer function. Also interestingly, /dev/sd0 still works for the first hard disk. This computer has 2 CD devices, an internal IDE and an external USB. The following are results from some more devices when both drives contained a CD-ROM: $ dd if=/dev/scd0 | md5sum dd: opening `/dev/scd0': Invalid request code $ dd if=/dev/scd1 | md5sum dd: opening `/dev/scd1': No such file or directory $ dd if=/dev/scd2 | md5sum dd: opening `/dev/scd2': Function not implemented $ dd if=/dev/scd3 | md5sum dd: opening `/dev/scd3': No such file or directory There appeared not to be anything on the mailing list already about this issue. Output from cygcheck is attached.
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