> Thanks for reply. > > I replaced break=y with init=/bin/sh. > In that case case system just hangs with the following message. > "Freeing unused kernel memory : 400k freed". > > Thanks!! > Sachin > > On Tue, Aug 25, 2015 at 7:16 PM, Barry Brimer <lists at brimer.org> wrote: > >> 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? You didn't mention what version of CentOS you are running. I also realized that this kernel line looks a bit non-standard. What is the purpose of the rootwait parameter in this context? Have you tried without it but including init=/bin/sh ?