Fix more test

linux_os/guide/system/accounts/accounts-pam/set_password_hashing_algorithm/set_password_hashing_algorithm_systemauth/tests/wrong_value_concat.fail.sh

@@ -2,5 +2,29 @@
 # platform = multi_platform_ubuntu
 # variables = var_password_hashing_algorithm_pam=sha512
 
-sed -i --follow-symlinks '/^\s*password.*pam_unix\.so/ s/sha512//g' /etc/pam.d/common-password
-sed -i --follow-symlinks '/^\s*password.*pam_unix\.so/ s/$/ sha5122/' /etc/pam.d/common-password
+cat << EOF > /usr/share/pam-configs/unix
+Name: Unix authentication
+Default: yes
+Priority: 256
+Auth-Type: Primary
+Auth:
+        [success=end default=ignore]    pam_unix.so try_first_pass
+Auth-Initial:
+        [success=end default=ignore]    pam_unix.so
+Account-Type: Primary
+Account:
+        [success=end new_authtok_reqd=done default=ignore]      pam_unix.so
+Account-Initial:
+        [success=end new_authtok_reqd=done default=ignore]      pam_unix.so
+Session-Type: Additional
+Session:
+        required        pam_unix.so
+Session-Initial:
+        required        pam_unix.so
+Password-Type: Primary
+Password:
+        [success=end default=ignore]    pam_unix.so obscure use_authtok try_first_pass sha5122
+Password-Initial:
+        [success=end default=ignore]    pam_unix.so obscure sha5122
+EOF
+DEBIAN_FRONTEND=noninteractive pam-auth-update