netqyq/kernel-learning

Linux Kernel Learning

Kernel Compile

0. dependencies

yum groupinstall "Development Tools" "Development Libraries" -y

1. generate .config file.

make menuconfig

2. compile

make

3. install modules.

make modules_install

4. install kernel.

make install

count installation time

time make install

Kernel Development

    check lab03 dir

Linux Booting Sequence

POST --> DISK MBR 446B(bootloader(grub)) --> kernel(vmlinuz) --> (initrd(initramfs.img,init)) --> (ROOTFS)/sbin/init(/etc/inittab, /etc/fstab, /etc/rc.d/) 

Kernel Related Commands

lsmod
insmod
modinfo
aliases
vermagic
modprobe
dmesg

Kernel File Location

kernel: 
    /boot/vmlinuz
    /boot/initrd
kernel modules:
    /lib/modules/`uname -r`