Novell Inc finally has definitive agreement with AT&T Co for its proposed acquisition of Unix System Laboratories Inc, which was announced just before Christmas. AT&T owns about 77% of Unix Labs, Novell currently holds about 5%, with the 11 other investors sharing about 18%. The total value put on the business is 12.3m Novell shares, giving it an indicated value of $323m. In addition, outstanding Unix Labs stock options and other equity incentives will be exchanged for Novell stock, options or rights to acquire Novell shares. The pact was approved by the boards of Novell and of AT&T but is still subject to regulatory and shareholder approvals.