Hello Everyone,
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 ?
Thanks
Sachin
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?
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@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? _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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@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 ?
Thank you so much!!! It worked.
On Tue, Aug 25, 2015 at 8:04 PM, Barry Brimer lists@brimer.org wrote:
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@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 ?
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Tue, 25 Aug 2015, Sachin Gupta wrote:
Thank you so much!!! It worked.
On Tue, Aug 25, 2015 at 8:04 PM, Barry Brimer lists@brimer.org wrote:
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@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 ?
You're welcome. Glad I could help.
Barry
One more question. I am using following grub.conf.
title Linux Init Break kernel /vmlinuz root=/dev/sda6 init=/bin/sh initrd /initrd.gz
Control comes to the shell command prompt. But the filesystem I am seeing is not initrd filesystem. Is it possible to access initrd file system ?
Thanks Sachin
On Tue, Aug 25, 2015 at 8:24 PM, Barry Brimer lists@brimer.org wrote:
On Tue, 25 Aug 2015, Sachin Gupta wrote:
Thank you so much!!!
It worked.
On Tue, Aug 25, 2015 at 8:04 PM, Barry Brimer lists@brimer.org wrote:
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@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 ?
You're welcome. Glad I could help.
Barry
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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Barry Brimer -
Sachin Gupta