Why didn't you boot into single user mode and reset the root password? It's usually better/safer to use the appropriate tools than to edit /etc/shadow manually.
How can I boot into single user mode, when I don't know the root password?
---------- Post updated at 03:56 PM ---------- Previous update was at 03:52 PM ----------
Quote:
Originally Posted by gacanepa
You should have edited the /etc/passwd file in your SuSE installation, removing the "x" next to root, from
to
Then reboot and try to login as root. WARNING! After successfully logging in to your system, make sure you re-add the "x" where it was BEFORE attempting to change root's password with passwd.
Dear All,
I have lost my data backup server's root password, just have a normal login username and password ..but i need to get back my root passwd....any1 can help me out plz :confused: (7 Replies)
Dears,
We have Oracle Database installed on AIX Version 5.3 and we have to take action urgently but must by root user but unfortunately we lost password.
How to recover root password?
Please, be noted that I am Oracle DBA and do not have experience in dealing with AIX Systems. Please, advise... (3 Replies)
How can I recover root password :wall:
1) I am running Solaris 10 (X86) through VMware for practicing.
2) I was practicing root password recovery and deleted the password in /etc/shadow file.
3) Neither cant login the to the CLI nor Console
4) Selected the Soalris X86 failsafe in... (4 Replies)
Hello forum members,
Please help me to recover the root password. i can login with the user in redhat linux but i forget root password. so pleas help me to recover.
advance thanks
siva. (2 Replies)
we have NCR 3455 system from long time as attached all information for server (images) , so we need your help to assist us to get root password which lost it , really we appreciate your efforts if you can send us the procedure for resting the administrator (root) password which this server... (0 Replies)
Hello forum members,
Please help me to recover the root password. I have had difficulties working with Solaris 11.
The run-level equivalents single-user in Solaris 10, I can mount disk in one partition and edit files shadow/passwd.
For example:
{0} ok boot cdrom -s
# mount... (4 Replies)
Discussion started by: Marcela Bueno
4 Replies
LEARN ABOUT REDHAT
sulogin
SULOGIN(8) Linux System Administrator's Manual SULOGIN(8)NAME
sulogin -- Single-user login
SYNOPSIS
sulogin [ -e ] [ -p ] [ -t timeout ] [ tty-device ]
DESCRIPTION
sulogin can be invoked by init(8) when the system goes into single user mode (this is done through an entry in inittab(5)). Init also tries
to execute sulogin when it is passed the -b flag from the bootmonitor (eg, LILO).
The user is prompted
Give root password for system maintenance
(or type Control-D for normal startup):
sulogin will connected to the current terminal, or to the optional device that can be specified on the command line (typically /dev/con-
sole).
If the -p flag was set, the single-user shell will be invoked with a dash as the first character in argv[0]. That will cause most shells to
behave as a login shell. The default is not to do this, so that the shell will not read /etc/profile or $HOME/.profile at startup.
After the user exits the single-user shell, or presses control-d at the prompt, the system will (continue to) boot to the default runlevel.
ENVIRONMENT VARIABLES
sulogin looks for the environment variable SUSHELL or sushell to determine what shell to start. If the environment variable is not set, it
will try to execute root's shell from /etc/passwd. If that fails it will fall back to /bin/sh.
This is very valuable together with the -b flag to init. To boot the system into single user mode, with the root file system mounted
read/write, using a special "failsafe" shell that is statically linked (this example is valid for the LILO bootprompt)
boot: linux -b rw sushell=/sbin/sash
FALLBACK METHODS
sulogin checks the root password using the standard methods first. If the -e option was specified, sulogin examines the next files to find
the root password. If they are damaged, or non-existant, it will use fallback methods that even go so far as to provide you with a shell
prompt without asking for the root password if they are irrepairably damaged.
/etc/passwd,
/etc/shadow (if present)
AUTHOR
Miquel van Smoorenburg <miquels@cistron.nl>
SEE ALSO init(8), inittab(5).
11 Sep 2000 SULOGIN(8)