Symptom
You want to create a hard link from/to a directory but getting an error as below,
# ln test/ test2/
ln: `test/': hard link not allowed for directory
Solution
Hard link is not allowed for directories pointing. You need to use symbolic/soft link instead.
Please refer to https://itsiti.com/ln-make-links-between-files-creating-hard-soft-links-steps for steps to create symbolic/soft link for directories.
