My son's mac running 10.11 has the hard drive named this
curie HD"""""""""""
copying and pasting reveals lots of spaces after the sequence of " characters.
I can't rename the HD in Finder. Every attempt fails with "The name "Curie HD"""" " can't be used. Try using a name with fewer characters or with no punctuation marks.
Note that the applications folder also shows nothing, same with documents etc. Spotlight reveals no apps. However, Finder -> Go To works.
Disk utility reports no errors.
in the shell, the HD is not visible in volumes
diskutil cs list looks like this the screen shot:
trying as root:
# diskutil rename / curieHD
get "Volume must be mounted" I am completely stuck.