Problem: Unknown Tar Extraction Warnings/Errors
I was running a script on Ubuntu Linux that extracted a tar archive, and I noticed many of the following errors whizzing by my console:
tar: Ignoring unknown extended header keyword `SCHILY.dev' tar: Ignoring unknown extended header keyword `SCHILY.ino' tar: Ignoring unknown extended header keyword `SCHILY.nlink' tar: Ignoring unknown extended header keyword `LIBARCHIVE.creationtime'
I was concerned that the the extraction might not be working properly and that I might run into unexpected errors.
Explanation: Mac OS X Issue
It turns out this is just an issue with tar files created on Mac OS X. Mac OS X uses BSD tar and creates some extra info that is not recognized by GNU tar.
Solution: Don’t Worry About It
What should you do about this? You don’t need to do anything. Your files will be extracted correctly, so you can safely ignore these warnings or errors.
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