$ passwd aboutblank
Enter existing login password: password!
New Password: password@
passwd: The first -17101680 characters of the old and new passwords must differ by at least 3 positions.
Please try again
New Password: password@
passwd: The first 3073 characters of the old and new passwords must differ by at least 3 positions.
Please try again
New Password: password@
passwd: The first 3073 characters of the old and new passwords must differ by at least 3 positions.
Permission denied
Confirmed on Nexenta Core 2.0 release.
The password at the start was "password!".
$ passwd aboutblank
Enter existing login password: password!
New Password: password@
passwd: The first -17101680 characters of the old and new passwords must differ by at least 3 positions.
Please try again
New Password: password@
passwd: The first 3073 characters of the old and new passwords must differ by at least 3 positions.
Please try again
New Password: password@
passwd: The first 3073 characters of the old and new passwords must differ by at least 3 positions.
Permission denied