Robert P. J. Day wrote: > On Mon, 18 Feb 2008, Kevin J. Cummings wrote: > >> Timothy Murphy wrote: > >>> I have heard of "mount -o loop". But the instructions say one >>> should insert a DVD, which I take to mean that one should insert a >>> DVD. >> They ask you to insert a DVD so that its filesystem can be mounted >> and you can access the files on that DVD. >> >>> This is not always - or even usually - equivalent to "mount -o loop". >> huh? Its almost always the same. Unless you are using the DVD for >> something non-standard. (years ago I used to write .tar files >> directly to floppy media. I suppose you could arrange to use a DVD >> in the same fashion, but most people don't.) Most DVDs contain ISO >> (or UDP) filesystems (which for the sake of this argument are >> equivalent). > > i would disagree. with a physical DVD, you're mounting a block > device, while you'd mount with "-o loop" if you're mounting a regular > file that happens to be an ISO image. let's not confuse the two. I'm not confusing the two. With a DVD, the ISO is burned to the disk. You could always recover it via "cat /dev/dvd > image.iso" (or something similar for your device name). Both are ultimately an ISO image. Only the container (and as you said the actual mount options) differ. I guess you like to split hairs. > rday > -- > > ======================================================================== > Robert P. J. Day > Linux Consulting, Training and Annoying Kernel Pedantry: > Have classroom, will lecture. > > http://crashcourse.ca Waterloo, Ontario, CANADA > ======================================================================== > -- Kevin J. Cummings kjchome@xxxxxxx cummings@xxxxxxxxxxxxxxxxxx cummings@xxxxxxxxxxxxxxxxxxxxxxx Registered Linux User #1232 (http://counter.li.org)
