Charles Curley <charlescur...@charlescurley.com> writes:
> I'm no expert on RPis, but that sounds to me like the SD card is
> protected against writes. Check for any physical write protection
> switches on the card itself and the holder.
Thanks for the suggestion, but this is one of those SSD cards
that often is found in a camera and resembles a wafer the size of
a thumbnail. It has a projection that acts as a key way to keep
a user from inserting it in the wrong way and there is a groove
for a fingernail to help pull the chip out of the socket. This
particular one was reading and writing just fine until I bricked
it by the DD that must have overwritten some address which now
makes it unwritable. It went from good to bad without my
removing it from the card reader so there should be some way to
at least clear it for writing again.
Apparently, it stops being writable if the partition
table is corrupted. In my case, I just want to delete both
partitions and start over.
The OS is debian Buster and has all the tools you can
expect to find and runs on a 64-bit ARM. Otherwise, it's pure
debian Linux.
Martin
