--- On Fri, 12/4/09, Al Plant <n...@hdk5.net> wrote:
> From: Al Plant <n...@hdk5.net> > Subject: Re: [Solved] Having problems burning a DVD > To: "James Phillips" <anti_spam...@yahoo.ca> > Cc: freebsd-questions@freebsd.org > Received: Friday, December 4, 2009, 12:26 PM > James Phillips wrote: <SNIP!> > > I noticed that the hash does not match the ISO file. > Is that normal for DVDs? For CD images I often get the md5 > hash to match. <SNIP!> > Aloha JP, > > This is what I use on FreeBSD from the command line to burn > DVD's. > I have used it on FreeBSD 8* for a while. (Simple and it > works.)- > Yes, I got that far, hence the [Solved] tag. I was mainly concerned that I made a mess of my /boot/loader.conf I 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 happened at ~7x according to growisofs. > > Then> Run # growisofs -dvd-compat -Z > dev/cd0=/usr/home/alp/FreeBSD_7/7.2-RELEASE-p1-i386-disc1.iso > (all on one line) > > Then> UseĀ cd0 as a DVD burner and make the DVD-R > > I tested the DVD on a spare box and it installed just > fine. > I found out why the checksum didn't match: the "-dvd-compat" option adds 6 2048 byte sectors of zeros to the end of the disk. So, I was able to verify the md5 sum by reading only the number of sectors present in the iso file. $ dd if=/dev/dvd bs=2048 count=996586 | md5 I noticed the size discrepancy while doing a binary search using the iseek (dd)(and count) argument(s) to narrow down the location of the corruption. Regards, James Phillips __________________________________________________________________ Looking for the perfect gift? Give the gift of Flickr! http://www.flickr.com/gift/ _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"