Can you please give more details on what you did? I cannot really say anything helpful on a generic "it doesn't work" statement.

Thank adam lackorzynski(<adam@os.inf.tu-dresden.de>) for your help. Now I resolve last problem and the compilation fiasco in slackware (last time is debian) is ok. The execution of hello example is also good! Now I am ready for experiencing the fiasco-ux. I compile the package but runs badly. The error information is as follows: Fiasco-UX on Linux 2.4.31 (i686) Mapped 64 MB Memory + 0 KB Framebuffer + 0 MB Input Area on FD 3 Loading Module 0x00090000-0x00094e60 [sigma0-ux] Failed to open file: roottask But according to the instructions of Fiasco-ux website the information should be like this: Fiasco-UX on Linux 2.4.31 (i686) Mapped 64 MB Memory + 0 KB Framebuffer + 0 MB Input Area on FD 3 Loading Module 0x00070000-0x000955c0 [sigma0-ux] Loading Module 0x00100000-0x001b9ce0 [rmgr-ux] ... The addresses of the sigma0-ux are different! My configuration of fiasco is as follows: Target System Options >(UX) Target Platform (IA-32) Target CPU Family (K7) Target processor >(L4V2) Kernel ABI Version [ ] TCB size of 4k [ ] Fine-grained CPU time [Y] Graphical console (requires SDL library!) [Y] Network support Kernel Debugging >[Y] Generate inline code [ ] Do not compile assertions [Y] Compile without frame pointer [ ] Measure stack depth of threads [ ] Sanity checks in low level allocator [ ] Sanity checks at syscall entry/exit [Y] Compile with gstabs+ debugging information [Y] JDB kernel debugger [ ] JDB extended logging [ ] JDB accounting [ ] Miscellaneous JDB modules (ANY) Runtime warning level Compiling and Building >gcc C compiler g++ C++ compiler [ ] Verbose build process [ ] Do additional checks at build time and then make VERBOSE=@ according to the instruction of Fiasco-ux website but I don't find the option "Assembler IPC shortcut" . Please help me! Cheng