Date: Wed, 6 Sep 2000 14:05:53 +0200 (CEST) From: Paul Herman <pherman@frenchfries.net> To: Ewout Vonk <ewout@azur.cx> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Trouble with 'dd', my cdrom/rw and wormcontrol on FBSD 4.1 Message-ID: <Pine.BSF.4.21.0009061401520.274-100000@bagabeedaboo.security.at12.de> In-Reply-To: <Pine.BSF.4.21.0009060001310.390-100000@server.azur.cx>
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On Wed, 6 Sep 2000, Ewout Vonk wrote: > I am having some trouble with my Aopen CDROM and HP 7200i CD-RW.. When I > try to make an exact copy of a cd using: > > dd if=/dev/acd0c of=cd.img and > dd if=/dev/acd1c of=cd.img > > It gives the error: 'dd: /dev/acd0c: Bad Address' and > it gives the error: 'dd: /dev/acd1c: Bad Address' Try a different block size (and better to use the raw device), like: dd if=/dev/racd0c of=cd.img bs=8k ...my CD-ROM seems to need a block size of at least 2k. > When I run: > > 'wormcontrol prepdisk double' or 'wormcontrol prepdisk single' > having done 'ln -s /dev/acd0c /dev/rworm0' > It gives the error: > > 'wormcontrol: ioctl(WORMIOCPREPDISK): Inappropriate ioctl for device' > > On FreeBSD 3.3 it used to work, just as with the dd command.. I don't know about this (I don't use wormcontrol) but I wouldn't be mixing character devices (those with the "r") with block devices (those without the "r")... The only advide I would suggest here (if it helps at all) is: ln -sf /dev/racd0c /dev/rworm0 ln -sf /dev/acd0c /dev/worm0 But like I said, I don't use wormcontrol... -Paul. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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