Hi, When I began to "make" on the RH9.0, I can't pass following errors, could you help me? however, it seems no compiling problem happen on a host with FC1.0. further more, what's the special config required in kernel .config file for GFS cluster? Thanks. Q.L cd ccs_tool && make install make[2]: Entering directory `/home/share/cluster-1.00.00/ccs/ccs_tool' gcc -Wall -I. -I../config -I../include -I../lib -I/home/share/cluster-1.00.00/build/incdir -Wall -O2 -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE `xml2-config --cflags` -DCCS_RELEASE_NAME=\"1.00.00\" -I. -I../config -I../include -I../lib -I/home/share/cluster-1.00.00/build/incdir -o ccs_tool ccs_tool.c update.c upgrade.c old_parser.c editconf.c -L../lib `xml2-config --libs` -L/home/share/cluster-1.00.00/build/lib -lccs -lmagma -lmagmamsg -ldl /home/share/cluster-1.00.00/build/lib/libmagma.so: undefined reference to `pthread_rwlock_rdlock' /home/share/cluster-1.00.00/build/lib/libmagma.so: undefined reference to `pthread_rwlock_unlock' /home/share/cluster-1.00.00/build/lib/libmagma.so: undefined reference to `pthread_rwlock_wrlock' -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster