Correcting an sd-card?

[Linux for blind general discussion]

*double checks in Aptitude*.

My bad, it's dosfstools without the hyphen, though it sounds like you
already have it installed. I only mentioned it because I recently had
to perform an fsck on one of my own SD cards and didn't already have
it, and it's a case of the package that provides a command not being
super obvious(my first guess if I didn't know it was dos something
would be to search in Aptitude for fat, which would leave me empty
handed).