Date: Fri, 4 Dec 2009 21:34:13 -0800 (PST) From: James Phillips <anti_spam256@yahoo.ca> To: Al Plant <noc@hdk5.net> Cc: freebsd-questions@freebsd.org Subject: Re: [Solved] Having problems burning a DVD Message-ID: <853320.94407.qm@web65511.mail.ac4.yahoo.com> In-Reply-To: <4B19627F.7020908@hdk5.net>
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=0A=0A--- On Fri, 12/4/09, Al Plant <noc@hdk5.net> wrote:=0A=0A> From: Al P= lant <noc@hdk5.net>=0A> Subject: Re: [Solved] Having problems burning a DVD= =0A> To: "James Phillips" <anti_spam256@yahoo.ca>=0A> Cc: freebsd-questions= @freebsd.org=0A> Received: Friday, December 4, 2009, 12:26 PM=0A> James Phi= llips wrote:=0A<SNIP!>=0A> > I noticed that the hash does not match the ISO= file.=0A> Is that normal for DVDs? For CD images I often get the md5=0A> h= ash to match.=0A<SNIP!>=0A> Aloha JP,=0A> =0A> This is what I use on FreeBS= D from the command line to burn=0A> DVD's.=0A> I have used it on FreeBSD 8*= for a while. (Simple and it=0A> works.)-=0A> =0AYes, I got that far, hence= the [Solved] tag.=0A=0AI was mainly concerned that I made a mess of my /bo= ot/loader.conf=0A=0AI am also a little concerned that the DVD only reads a = ~1.5MB/s (a little faster than 1x), but it appears to work. Burning happene= d at ~7x according to growisofs.=0A=0A> =0A> Then> Run # growisofs -dvd-com= pat -Z=0A> dev/cd0=3D/usr/home/alp/FreeBSD_7/7.2-RELEASE-p1-i386-disc1.iso= =0A> (all on one line)=0A> =0A> Then> Use=A0 cd0 as a DVD burner and make t= he DVD-R=0A> =0A> I tested the DVD on a spare box and it installed just=0A>= fine.=0A> =0A=0AI found out why the checksum didn't match: the "-dvd-compa= t" option adds 6 2048 byte sectors of zeros to the end of the disk.=0A=0ASo= , I was able to verify the md5 sum by reading only the number of sectors pr= esent in the iso file.=0A=0A$ dd if=3D/dev/dvd bs=3D2048 count=3D996586 | m= d5=0A=0AI noticed the size discrepancy while doing a binary search using th= e iseek (dd)(and count) argument(s) to narrow down the location of the corr= uption.=0A=0ARegards,=0A=0AJames Phillips=0A=0A=0A=0A ________________= __________________________________________________=0ALooking for the perfec= t gift? Give the gift of Flickr! =0A=0Ahttp://www.flickr.com/gift/
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