#include <hallo.h> John Griffiths wrote on Sun Dec 02, 2001 um 06:08:42PM:
> >cat: /dev/cdrom: Input/output error Check the size of the image. ISO specification allows the last 2 sectors (iirc 4.6kB) to be not readable - they containa run-out data, which mastering or copying CD recorder uses to stop the writting process. To check, mount your image somewhere with -o loop and try something like: tar c /mounted/image/ | wc and look for error messages. > that's an ambitious use of cat... Blah. dd makes the same read and write operations as can&shell in this case. > dd if=/dev/cdrom of=/tmp/cd.iso better append conv=noerror > pretty sure u wanted /cdrom unmounted when you do it, but try it both ways Blah. The data is readonly, mount status of it does not affect data. > dd is much better at raw data imaging. Blah. The only advantages of dd are options to skip unreadable data change the block size on reading/writting, but the last one is mostly managed my kernel in the best way. Gruss/Regards, Eduard.
