Kernel configurationa
Console drivers
VGA text console (CONFIG_VGA_CONSOLE) [Y/n/?]
Video mode selection support (CONFIG_VIDEO_SELECT) [N/y/?]
Sound
Sound card support (CONFIG_SOUND) [N/y/?]
(Security options will appear only if you are patched your kernel with the Openwall Project patch).
Security options
Non-executable user stack area (CONFIG_SECURE_STACK) [Y]
Autodetect and emulate GCC trampolines (CONFIG_SECURE_STACK_SMART) [Y]
Restricted links in /tmp (CONFIG_SECURE_LINK) [Y]
Restricted FIFOs in /tmp (CONFIG_SECURE_FIFO) [Y]
Restricted /proc (CONFIG_SECURE_PROC) [N] Y
Special handling of fd 0, 1, and 2 (CONFIG_SECURE_FD_0_1_2) [Y]
Enforce RLIMIT_NPROC on execve(2) (CONFIG_SECURE_RLIMIT_NPROC) [Y]
Destroy shared memory segments not in use (CONFIG_SECURE_SHM) [N] Y
Kernel hacking
Magic SysRq key (CONFIG_MAGIC_SYSRQ) [N/y/?]
Now, return to the 7usr/src/linux/” directory (if you are not already in it). You need to compile the new kernel. You do so by using the following command:
[root@deep linux]# make dep; make clean; make bzlmage
This line contains three commands in one. The first one, make dep, actually takes your configuration and builds the corresponding dependency tree. This process determines what gets compiled and what doesn’t. The next step, make clean, erase all previous traces of a compilation so as to avoid any mistakes in which version of a feature gets tied into the kernel. Finally, make bzlmage does the full compilation of the kernel.
After the process is complete, the kernel is compressed and ready to be installed on your system. Before we can install the new kernel, we must know if we need to compile the corresponding modules. This is required only if you said Yes to “Enable loadable module support (CONFIG_MODULES)” and have compiled some options in the kernel configuration above as a module. In this case, you must execute the following commands:
• To compile the corresponding modules for your kernel, use the following command:
[root@deep linux]# make modules [root@deep linux]# make modules_install
NOTE: The make modules and make modules_install commands are required only if you say Yes to “Enable loadable module support (CONFIG_MODULES)” in your kernel configuration above.