My grub.conf is as following.
title Linux Init Break kernel /vmlinuz root=/dev/sda6 ro rootwait break=y initrd /initrd.gz
What I expect is by adding *break=y* to cmdline, init will pause early in the boot process and launch an interactive sh shell which can be used for troubleshooting purposes.
But kernel is disregarding break=y. And it loads up without launching sh shell.
Is it the right way to launch interactive shell ?
I would remove the break=y and replace it with init=/bin/sh
What version of CentOS are you running?