I have a partially corrupted HD that can not be repaired by Disk Utility, but which can be mounted read-only making the data on it accessible.
I am trying to copy all the recoverable contents onto a spare HD, but every method I try fails when an error is encountered – leaving the remaining files uncopied.
Finder – Fails.
SuperDuper – Fails.
Ditto (terminal command) – Fails.
I was hoping that Ditto would do the trick, the Ditto man page says:
ditto returns 0 if everything is copied, otherwise non-zero. ditto
almost never gives up, preferring to report errors along the way.
Diagnostic messages will be printed to standard error.
I have submitted a bug to Apple re ditto failing to perform as advertised.
Any other ideas?
Best Answer
I use
cp -Rfv sourcefile destinationfile
with success on a pretty regular basis.cp = copy
R = maintains file hierarchies
f = if an existing destination file cannot be opened, remove it and try again
v = verbose mode, displays files transferred as it progresses
sourcefile = data you want to copy
destinationfile = directory/drive you want to copy to