Hello!!   I'm a totally newbie at L4-Fiasco. I have tried to run the hello program with the fiasco kernel since yesterday. I just want the following commands in menu.lst of grub work well so that I can see the "hello" message.   ------------------------------------------------------ title       Hello_World kernel      (hd0,5)/fiasco/bootstrap -comport 1 -serial modaddr     0x02000000 module      (hd0,5)/fiasco/fiasco -nokdb module      (hd0,5)/fiasco/sigma0 module      (hd0,5)/fiasco/roottask module      (hd0,5)/fiasco/hello ------------------------------------------------------ I can solve the "modaddr" problem with grub-0.97 by installing grub-0.90 in a floppy disk. And then I'm now in a stuck with the following error.   ----------------------------------------------------------------------- ......... 64 Entry I TLB (4K or 4M pages) 64 Entry D TLB (4K or 4M pages) 12k u-ops T Cache (8-way associative)     8 KB L1 D Cache (4-way associative, 64 bytes per line) 256 KB L2 U Cache (8-way associative, 64 bytes per line) Freeing init code/data: 16384 bytes(4 pages) .... Registers' contents showed.... trap 3 (Breakpoint), error 00000000 from kernel mode Panic: terminated due to trap Return reboots, "k" enters L4 kernel debugger... -----------------------------------------------------------------------   I've already tried modifying kernel option so many times. But it didn't work.   How can I solve this problem??     Thank you!!   Jo.