si
ma onestamente su OSX non lo faccio mai...non serve quasi mai :)
Ha scritto dopo 1 minuto 57 secondi:
Verifying file system.
Volume could not be unmounted.
Using live mode.
Performing fsck_hfs -fn -l -x /dev/rdisk0s2
Performing live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
The volume macOS High Sierra appears to be OK.
File system check exit code is 0.
Restoring the original state found as mounted.
Operation successful.