On 14:46, Tue 06 Dec 05, Lennart Sorensen wrote: > On Tue, Dec 06, 2005 at 01:26:17PM -0600, Mike Reinehr wrote: > > I ran into this the first time that I burned a DVD image of Libranet's new, > > 3.0 release. Growisofs output indicated a successful burn, but the new > > image > > failed the md5sum test. I finally noticed that the dvd image was several > > kilobytes larger than the original image. Eventually, using dd & od I > > determined that the difference appeared to consist of several blocks of > > binary zeros appended to the end of the original image. As a test of this > > theory, I used dd to truncate the extra blocks and the resulting image > > passed > > the md5sum test. > > cd and dvd are supposed to be padded at the end with zeros. Reading > them raw is not supported since there is not official end to the track, > only the filesystem knows how far to expect reads to work. > > The correct way to verify a CD/DVD is to compare the contents in > general, or to use readcd or equivalant specifying the number of blocks > to read to match the original size. > > Len Sorensen > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
What I don't understand is why all the fuse, I thought you were supposed to check the md5sums after you downloaded them from the source. Once you have them verified then you know it's clean, and a proper source. If you then burn them, or use them or modify them on your computer then its a totally different story. The only exception might be a rootkit, but that is somewhat out of character of a root kit, as they usually want to control the local machine, and not modify itself to change how a dvd burn works. I must admit that using diff, and your other suggestions for the list was a good refresher of cmd line tools. I never did like k3b that much, everytime I used it it give's weird results or crashed. So I stuck with growisofs, and the other basis tools that all the gui's depend on. Gnu_Raiz -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
