Date: Sun, 17 Nov 2002 14:56:15 -0500 (EST) From: Peter Leftwich <Hostmaster@Video2Video.Com> To: "Gary W. Swearingen" <swear@attbi.com> Cc: FreeBSD Questions LIST <FreeBSD-Questions@FreeBSD.ORG> Subject: Re: Seeking command similar to dd Message-ID: <20021117143949.A80685-100000@earl-grey.cloud9.net> In-Reply-To: <t6ptt6edo8.tt6@localhost.localdomain>
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On 15 Nov 2002, Gary W. Swearingen wrote: > Peter Leftwich <Hostmaster@Video2Video.Com> writes: > > Is there a command similar to "dd" to analyze a CD that is in the drive? > I use the "dd bs=2k" command on ISO 9660 CDs. Is there more to that command line? Or does it let you browse RAW data? > > I used mkisofs the other day, then burncd (forgot to say "fixate" on the > > end of the command line though), and now I cannot mount this CD. Ideas? > I'm fairly sure that you can successfully run "burncd fixate" just after > running "burncd data ...", but I don't know what can be done in between The weird thing is that right after the burncd session finished, I was able to "ls -al" the cd (can't remember if it was mountable or not...) > without messing things up. I don't know if the drive has "memory" which > gets used in the fixate process or if it's something that can be done > from scratch at any time after burning the data. (I've even had > occasional success restarting a burn that bailed out mid-CD. Sadly, > I can't get my burner to burn or even mount CDs reliably lately. New > kernel didn't help. Guess I'll have to install Linux and see if it can > drive the thing any better.) Does it sound like not having put "fixate" on the end has made this CD never again readable? It's ok because I archived the data anyways. But please comment. > When "analyzing" CDs, know that "burncd" usually puts an extra 2k block > on the CD, so that a raw "diff" won't work. I think I've posted my > CD-diffing script here already; ask me if you'd like it. Thanks for the tip. Is there a command line that makes the CD bootable in any drive? For example, I've read the manpage and it looks as though you can add -h for Macs and HFS, and -r for RockRidge extensions which get around 8.3 format and... a couple other filename affecting flags...? -- Peter Leftwich President & Founder, Video2Video Services Box 13692, La Jolla, CA, 92039 USA http://Www.Video2Video.Com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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