Hi, I tried to upgrade my FC1 boxes to FC4, but find that it failed. it looked like udev conflict with my custom kernel (my own compiled vanlina kernel downloaded from www.kernel.org). I tried to specify '--exclude=udev' but the lower version yum on FC1 doesn't accept the option yet. The following is the output.. [root@hello04 i386]# yum upgrade Gathering header information file(s) from server(s) Server: Fedora Core 4 - i386 - Base Finding updated packages Downloading needed headers Finding obsoleted packages Resolving dependencies .conflict between udev and kernel [root@hello04 i386]# __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com