[Ilugc] Fwd: Fw: How to boot the system in Single user mode

0 0 at 0throot.com
Wed Jul 11 13:50:12 IST 2012

On 07/11/2012 01:35 PM, naveen kumar wrote:
> 1)      I am trying exercise about  “how to boot the system in Single user
> mode on Centos' 6.0'”.  I am using Acer Extensa 4620 laptop Intel(R)
> Core(TM)2 Duo CPU T550 @ 1.83GHZ.  I referred many webites, But  I couldn’t
> find clearly about how to boot  it using single user mode on Centos.
> Please help me.

GNU/Linux can be run in various modes termed as "runlevels".


"single user mode" is runlevel 1. To change run levels, we use the 
command "init". For example, to change to runlevel 1, run the following 
from command prompt (as root).

   init 1

To boot into run level 1, you need to modify your "kernel" line in grub 
configuration. Just add "1" anywhere in the "kernel" line and you will 
boot into single user mode.

> 2)      Why do I need to practice using CentOS instead of RHEL?

CentOS and RHEL contain same packages but RHEL is a paid version for 
which you get commercial support. With CentOS, you get community support.


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