Hi, list Sometime ago (May) I asked about realtime under SUSE 9.3, and received the following advice from Rui (for which I am grateful). When it actually came down to it, I bottled out so never followed this through, opting to run all the applications I needed as root. "The way to go is installing kernel-source package and apply the realtime-lsm patch to the kernel source tree. "Just (re)build and install the patched kernel, but take special care to set the following, while on kernel configuration: CONFIG_SECURITY_CAPABILITIES=N CONFIG_SECURITY_REALTIME=M " I'm a bit worried about mucking up my system (also used for general purpose computing), and I was hoping someone could give me some further advice: If I patch and reconfigure the kernel source, is that likely to break future compilation using the default kernel? Is it possible to copy the contents of /usr/src/linux-2.6.11.4-21.9/ to another location (something like /usr/src/linux-2.6.11.4-21.9-rt) and apply the patch and compile there, or is it better just to patch the suse source directly, accessing it via the /usr/src/linux symlink? Also I noticed there's a directory called /usr/src/linux-2.6.11.4-21.9-obj Do patches automatically change the kernel identifier so that when I do a make modules_install it will create a new directory instead of copying them over the modules from the running kernel? Is there a way to make sure it does? Is it OK to manually copy the vmlinuz and system.map file into /boot with a name appropriate to the kernel version? Is it good practice to reference kernels directly in the GRUB menu.lst by their real names rather than the symlink (when presenting the option to boot more then one)? I'm really sorry for the basic questions - I'm still a relative newbie to Linux. I've thought about trying out a dedicated multimedia distro, but really comfortable with SuSE now. Thanks in advance -- David Haggett
