


Smartctl errored out with no useful info. Btw, I changed the disk geometry from 4 to 64 heads to make testdisk happy. Also, the read error at cylinder 1083 has been consistent every time I use testdisk on this card.

It really seems like I can't write to the first sector. More info: TestDisk 7.1, Data Recovery Utility, July 2019ĭisk /dev/sdd - 31 GB / 29 GiB - CHS 30437 64 32Ĭheck_FAT: Unusual number of reserved sectors 4 (FAT), should be 1.įAT16 >32M 1 0 1 56 63 32 114688 The SD card is a 32GB Sandisk which I flashed with k3os. The partition table just will not go away, so I'm pretty sure those sectors of the disk have just failed for writing, but can still be read somehow.Ĭan I write the partition table to a different place on the disk? I can't delete it, either, neither in Linux using parted, cfdisk, or fdisk, nor in Windows, which just says format didn't work. I can't write the partition table on an SD card.
