Date: Sun, 3 May 2020 22:45:40 +0200 From: Christoph Kukulies <kuku@kukulies.org> To: freebsd-questions@freebsd.org Subject: Re: dd: /dev/cd0: Invalid argument Message-ID: <620830DD-8E3C-445F-9FF5-5CDE1A51D1D2@kukulies.org> In-Reply-To: <B0B4F1EA-8BAC-467F-A399-A0DC2720C149@kukulies.org> References: <B0B4F1EA-8BAC-467F-A399-A0DC2720C149@kukulies.org>
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Aah, I got it: dd if=/dev/cd0 of=cd0_dump ibs=2048 — Christoph > Am 03.05.2020 um 21:56 schrieb Christoph Kukulies <kuku@kukulies.org>: > > 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 > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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