On Tue, 8 Sep 2009 22:10:46 +0200 Guus Snijders <gsnijders@xxxxxxxxx> wrote: > ..... > It feels a bit like the disk (on which the image is stored) is giving > a read error, causing dd to stop. > > Also, is there anything in the kernel messages (dmesg) that gives a > clue? > ..... If you suspect that the disk has a (physical) problem I would recommend to run MHHD program from a bootable CD/Floppy [0]. It creates a color map of the disk displaying the access time to each block and I/O errors. It helped me to save much time trying to solve problems like one in this thread. The only "con" of MHDD is that it's DOS-based ;) Cheers, Sergey [0] http://hddguru.com/content/en/software/2005.10.02-MHDD/