I am making an embedded Linux distribution and my board is a Raspberry Pi. My kernel version is 3.2.27 without initramfs and my root file system as follows:
/lib /* contains kernel modules */
/bin /sbin /usr/bin /usr/sbin /* contains busybox utils binaries */
/usr/lib /* contains cross-compiler tool chain libs */
linuxrc /* generated by busybox, kept in / */
/dev /* I have created console and ttyAM0 manually but added mode devices by udev */
/etc/init.d/rcS /* required by busybox init */
after kernel booted I am getting a console (I don't know whether it is busybox console or not). I have few problems below
- No process information available (no files/folder created under
/proc
). - When I am using
ps -e
it shows nothing.
Why this unexpected behavior happens?