2. Installing the iBCS module The iBCS2 module is available from ftp://tsx-11.mit.edu/pub/linux/BETA/ibcs2. If you are running kernel version 1.2.13, get ibcs-1.2-950721.tar.gz, unpac it and apply the patches ibcs-1.2-950808.patch1 and ibcs-1.2-950828.patch2. You can then type "make" and install the iBCS modlue with "insmod". For a 2.0 kernel version, get ibcs-2.0-960610.tar.gz, unpack it in a suitable place, chdir into that directory, and apply the following patch: --- iBCSemul/ipc.c.orig Wed Jan 15 21:32:15 1997 +++ iBCSemul/ipc.c Wed Jan 15 21:32:31 1997 @@ -212,7 +212,7 @@ switch (command) { case U_SEMCTL: cmd = ibcs_sem_trans(arg3); - arg4 = (union semun *)get_syscall_parameter (regs, 4); + arg4 = (union semun *)(((unsigned long *) regs->esp) + (5)); is_p = (struct ibcs_semid_ds *)get_fs_long(arg4->buf); #ifdef IBCS_TRACE if ((ibcs_trace & TRACE_API) || ibcs_func_p->trace) Then, copy CONFIG.i386 to CONFIG, and type make. If you don't have them already, create the needed device files by executing # cd /dev # ln -s null XOR # ln -s null X0R # mknod socksys c 30 0 # mknod spx c 30 1