As the topic says, when I try to dd, I get : dd: opening `/dev/mmcblk0` : Read-only file system
This is on Debian 7.7, and the card is brand new Transcend TS16GSDHC10 and only has an empty fat32 partition.
I've tried using hdparm -r0 /dev/mmcblk0 but still get the same error when i try to dd.