Pascal & other security knowledgible persons, Thanks for your advice on how to deal with this problem. Below are my two attempts, along with their failed results. Attempt 01 $ ls debian-8.5.0-i386-lxde-CD-1.checksum SHA512SUMS debian-8.5.0-i386-lxde-CD-1.iso SHA512SUMS.sign Debian8_i386_SHA256SUMS.sign $ wget https://people.debian.org/~danchev/debian-iso/check_debian_iso ~/scripts$ chmod +x check_debian_iso $ /home/a/scripts/check_debian_iso SHA512SUMS debian-8.5.0-i386-lxde-CD-1.iso /dev/sdb Does not look like an ISO 9660 filesystem: '/dev/sdb' magic=' ' {fail}
Am I supposed to edit the script and put something in for magic=' '? Attempt 02 $ sudo cmp /media/LG/AC/bckup/Install/2_Bootable-OS/Debian/i386/debian-8.5.0-i386-lxde-CD-1.iso /dev/sdb [sudo] password for a: /media/LG/AC/bckup/Install/2_Bootable-OS/Debian/i386/debian-8.5.0-i386-lxde-CD-1.iso /dev/sdb differ: byte 1, line 1 Sincerely, Andrew F Comly ================================================================================== -------- Original Message -------- Subject: Re: you iso's may have been hacked Local Time: August 10, 2016 10:17 AM UTC Time: August 10, 2016 10:17 AM From: pas...@plouf.fr.eu.org To: debian-user@lists.debian.org Le 10/08/2016 à 08:36, Thomas Schmitt a écrit : > > Andrew F Comly wrote: > >> Notice how the two sha512sum numbers (local vs burnt usb) don't match! Of course : the image and the device do not have the same size. > Determine the ISO size on /dev/sdb by program isosize and curb its reading > by help of program dd, or try > > wget https://people.debian.org/~danchev/debian-iso/check_debian_iso > > ./check_debian_iso SHA512SUMS debian-8.5.0-i386-lxde-CD-1.iso /dev/sdb Or use 'cmp' to compare the USB device contents with the image file. cmp debian-8.5.0-i386-lxde-CD-1.iso /dev/sdb If the comparison ends by reaching the end of the image file, there is no difference.
