Hi, Andrew F Comly wrote: > E) Burn iso to media > dd if=/dev/zero of=/dev/sdb1 bs=1M; > wait;
Why this overwriting of partition 1 by zeros ? The partition table will be overwritten by the ISO anyways. (And on what asynchronous processes are you waiting to end ?) > ddif=/media/LG/AC/bckup/Install/2_Bootable-OS/Debian/i386/debian-8.5.0-i386-l xde-CD-1.iso of=/dev/sdb Blanks matter. :)) Assumed that you did put a blank between "dd" and "/media", the command would be ok for copying the ISO onto a USB stick at /dev/sdb. (For me it runs substantially faster if i add option bs=1M.) Did the command last long enough to be credible ? Did it report 1255424+0 records in 1255424+0 records out ? > sudo sha256sum /dev/sdb As we learn from the copy-to-stick command, we need to curb to 1255424 blocks of dd's default size (512 bytes per block). My USB stick is at /dev/sdc: $ dd if=/dev/sdc count=1255424 | sha256sum ... fd7729e3bdfcb2b1b8793f5a19096fb2eee3cf709c39112ed2da7e7a2d7f6886 - $ fgrep fd7729e3bdfcb2b1b8793f5a19096fb2eee3cf709c39112ed2da7e7a2d7f6886 SHA256SUMS fd7729e3bdfcb2b1b8793f5a19096fb2eee3cf709c39112ed2da7e7a2d7f6886 debian-8.5.0-i386-lxde-CD-1.iso Testing with ./check_debian_iso (which counts blocks of 2048 bytes each): $ ./check_debian_iso SHA512SUMS debian-8.5.0-i386-lxde-CD-1.iso /dev/sdc Piping 313856 blocks of '/dev/sdc' through 'sha256sum' to verify checksum list item 'debian-8.5.0-i386-lxde-CD-1.iso'. 313856+0 records in 313856+0 records out 642777088 bytes (643 MB) copied, 31.7854 s, 20.2 MB/s Ok: '/dev/sdc' matches 'debian-8.5.0-i386-lxde-CD-1.iso' in 'SHA256SUMS' Have a nice day :) Thomas
