find inodes of a dir

Hello,

I’m trying to identify all hard links pointing to my root directory:
$ sudo ls -lid /
2 drwxr-xr-x 23 root root 4096 Aug 11 20:58 /

The inode number is 2 and count of hard links is 23.

Then I run find:

$ sudo find / -xdev -inum 2 2>/dev/null | wc -l
15

But the `find` finds only 15.

I checked on two different systems and result of find doesn’t match the number of hardlinks.

In detailed out — https://pastebin.com/raw/JH6hW7n6 — you can see that -xdev option seems to be ignored since /dev is counted.

But it is still doesn’t explain why the number is 15 — less than 23.

May I ask for help to find all hard links to the directory  within one filesystems using `find`?

 
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Best Regards,
Andrei Enshin