Hi, derlyne wrote: > With tools like dd, you must verify both the source and > the destination, since getting either one wrong can have serious > consequences.
I agree, especially in regard to the destination. It was not a big risk with optical media, because the device addresses are less near to the addresses of system disks and the burn programs are incapable or cautious enough. With the source i see mainly the risk of wasting time by copying the wrong image to USB stick. In rather unlikely circumstances one could publish confidential information. And, to be fully back on topic, the solution posted by hlyg: > > dd if=debian-live-13.7.0-amd64-lxqt.iso of=/dev/sdd bs=1M count=1 will work of course only if the if= file is indeed in its first MB an identical copy of the first MB of the ISO which was once put on the USB stick and was later altered by a partition editor. As late further diagnosis of the checksum spoiler i can tell that this time it was not a firmware or operating system writing to the EFI system partition. The EFI image of 13.7.0-amd64-lxqt.iso sits at 2048-byte-block 2013 which is nearly 3 MB after the end of the repairing dd write run. So the spoiler was most probably the partition editor which left traces of its work after creating and removing the extra partition. hlyg wrote: > wget allows partial downloading Is there really an opportunity to let wget only download 1 MiB ? I did not find such an option in the man page. So i had to stop wget after a few MB with Ctrl+C. That gave enough of an ISO filesystem to run xorriso -indev debian-live-13.7.0-amd64-lxqt.iso -report_el_torito plain Have a nice day :) Thomas
