You said, you have changed the hash. Perhaps the hash started with $1$? Because the GNU libraries have two ways of encrypting passwords: traditional DES using a 2 character seed, or an MD5 based encryption that uses a key of the form '$1$...$', where '...' is up to 8 characters.

See also your systems crypt manual page.

In reply to Re: Authentication with /etc/shadow by JavaFan
in thread Authentication with /etc/shadow by fluffyvoidwarrior

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