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1.5.19-4 : problem with SCSI emulation for CD-ROM


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.

Attachment: cygcheck.out
Description: Binary data

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