Hi, dd brought your stick into this state. dd should get it out too.
dd if=/dev/zero bs=512 count=2 of=/dev/sdc should zap the MBR partition table and the GPT header block. (Of course verify three times that /dev/sdc is the address of the stick before erasing its partition table.) Then do hdparm -z /dev/sdc or unplug and re-plug the USB stick. A partition editor should afterwards perceive it as unpartitioned. > I recently helped a friend install Mint on her computer, [...] > I now have the problem that I can only format 3.9Gb of the drive. > "Error deleting partition /dev/sdc1: Failed to read partition table on > device '/dev/sdc/ (/dev/sdc: unrecognised disk label) (udisks-error-quark, > 0)" Mint 64bit ISOs have the same isohybrid layout as Debian amd64 ISOs. I.e. MBR partition table with nested partitions and outer partition type 0 plus an invalid GPT. It would be interesting to see whether a more conservative layout would be more digestible to the partition editors offered by Debian. Have a nice day :) Thomas
