Linux kernel boot process
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Linux kernel boot process
Linux kernel mounts the root filesystem.
The kernel starts the first user process /sbin/init provided by Busybox.
/sbin/init reads /etc/inittab (From the SDK: linux/embedded_rootfs/etc-files/inittab).
/etc/inittab starts the shell script /sbin/rc (From the SDK: linux/embedded_rootfs/etc-files/rc).
/sbin/rc mounts the kernel pseudo filesystems /proc, /dev/shm, and /dev/pts.
/sbin/rc brings up the loopback network device with the IP address 127.0.0.1.
/sbin/rc starts syslogd provided by Busybox.
/sbin/rc starts telnetd provided by Busybox.
/sbin/rc exits returning control in /sbin/init.
/etc/inittab tells /sbin/init to spawn an interactive shell.
The user interactive shell prompt appears.
Linux kernel mounts the root filesystem.
The kernel starts the first user process /sbin/init provided by Busybox.
/sbin/init reads /etc/inittab (From the SDK: linux/embedded_rootfs/etc-files/inittab).
/etc/inittab starts the shell script /sbin/rc (From the SDK: linux/embedded_rootfs/etc-files/rc).
/sbin/rc mounts the kernel pseudo filesystems /proc, /dev/shm, and /dev/pts.
/sbin/rc brings up the loopback network device with the IP address 127.0.0.1.
/sbin/rc starts syslogd provided by Busybox.
/sbin/rc starts telnetd provided by Busybox.
/sbin/rc exits returning control in /sbin/init.
/etc/inittab tells /sbin/init to spawn an interactive shell.
The user interactive shell prompt appears.
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