Hallo group members. I unfortunatelly did not find any information on how to use debuginfo files for debugging purposes, that's why I decided to ask You. Do You know any helpful link? I also played a while with example ethereal-debuginfo file on my fc3. what I did: prompt# rpm -ivh ~/ethereal-0.10.14-1.FC3.1.i386.rpm prompt# rpm -ivh ~/ethereal-debuginfo-0.10.14-1.FC3.1.i386.rpm prompt# rpm -qf /usr/sbin/tethereal ethereal-0.10.14-1.FC3.1 prompt# gdb /usr/sbin/tethereal then I set breakpoint at main() function in /usr/src/debug/ethereal-0.10.14/tethereal.c. I am really surprised that I can do it! Does it mean that fedora developers do not remove debug symbols from /usr/sbin/tethereal, which in fact is an executable? I also found file: prompt# rpm -qf /usr/lib/debug/usr/sbin/tethereal.debug ethereal-debuginfo-0.10.14-1.FC3.1 what is this file for? I cannot run it: prompt# /usr/lib/debug/usr/sbin/tethereal.debug bash: /usr/lib/debug/usr/sbin/tethereal.debug: Permission denied I also cannot debug it with gdb. Another question: how to use libraries from ethereal-debuginfo rpm package efficiently? I use them in following way and it works, but maybe there is some better way: prompt# export LD_LIBRARY_PATH=/usr/lib/debug/usr/lib regards, Pawel