CDLinux startup process analysis
Nuclear load
2. According to the kernel parameter root = / dev / ram0, initrd = cdlinux.gz loads compressed root file system mirror (Squashfs, EXT2, MiniX type, etc.) to memory, and decompressed
3. Find the init of the directory such as file system / bin: / sbin, read / etc / inittab as a configuration file, and start executing the initialization process init
So usually need to specify in / etc / inittab :: sysinit: /etc/rc.d/rc.init, the system will automatically perform this initialization script rc.init
4. In Rc.init, other file systems are usually loaded, such as:
a. mount -a will load all file systems in / etc / fstab;
b. Configure the network, routing information, host name,
c. And call /tc/rc.d/rc.* Other scripts to implement allowed to exchange partitions, load packages, and update shared library links
d. Execute /etc/rc.d/init.d/* The following can have a script (service process, service daemons)
e. Execute user local script rc.local
f. Output version information and login information
5. The system is automatically found and executed / bin / login
------------------
P.S. Thanks to CDLinux's author Benz brother guidance!
