If I run the following command on Ubuntu 14.10:
sudo dd if=/dev/zero of=/dev/sdb bs=1M count=100
It effectively erases my SD card.
If I run the exact same command on Ubuntu 16.10 (or 16.04), nothing happens. I've tried it on two different Ubuntu 16 machines. Literally nothing happens. I see the same dd output, but when I unplug and plug the SD card back in all the folders are still there, the partition is still there, everything.
Does anyone have insights as to how this could happen?
As per request:
user@cobalt:~/Desktop$ sudo parted /dev/sdb print Model: Generic- SD Card (scsi) Disk /dev/sdb: 7948MB Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 1 1049kB 7948MB 7947MB primary ext4