dd: /dev/cd0: Invalid argument
Christoph Kukulies
kuku at kukulies.org
Sun May 3 19:56:20 UTC 2020
I got a bit further with seeing my old SCSI-Periphals on the external SCSI bus connected to the sym0 (ASUS SC-200 Interface).
I can dd one of the disks connected there (/dev/da0) completely (2GB)
But I cannot dd if=/dev/cd0 of=cd_dump
Doing this, I’m getting
$ dd if=/dev/cd0 of=cd_dump
dd: /dev/cd0: Invalid argument
0+0 records in
0+0 records out
0 bytes transferred in 0.000199 secs (0 bytes/sec)
$
What’s wrong? /dev/da0 and /dev/cd0 are both character devices. I can well cat /dev/cd0 >dump .
—
Christoph
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