After upgrading some kernels to 2.4.21-40, the make install_mom install_clients command wouldn’t work. So I recompilied torque with a machine already upgraded to 2.4.21-40. This worked fine, except that it has the name of the server as cdf36 instead of cdf30. So, after running the make command, check /var/spool/pbs/server_name and /var/torque/server_name that they contain the correct name.