That is probably because some services are not running. Whose password are you trying to change? You can edit /etc/shadow directly. A blank entry(NULL) in the /etc/shadow password field allows that user to login without asking for a password.
Unless this is a toy system, reboot, and then run passwd as usual for the user you set with a blank password.
Example "blank" password field in /etc/shadow, note that I left out other fields, do not mess with them.
old account with password:
new no password:
I am guessing you are doing this with the root user.
Hi all,
why "vi" acts differently is single user mode?
Does anyone help ?
I am using "x" to delete and it keeps messing up.
Please help
Thanks (2 Replies)
Hi all,
Well back at work and back to crashing systems again :-)
Does anyone know where I can find some decent information on single user mode? I need to be able to fix a few things. Don't know if it's possible in single user mode but I need to fix the "etc/vfstab" mainly I re-wrote it to... (2 Replies)
My solaris10 machine suddenly hanged and when i rebooted it gave me warnings like
"WARNING: Unexpected token ' ' on line 10 of /platform/sun4u/kernel/drv/sf.conf "
and many more.
I went into the single user mode by
#boot cdrom -s
I tried executing fsck -y there.But it did not work.
It does... (1 Reply)
hello ppl, someone must be able to help with this --> I have an old NCR tower 32 with an ADDS terminal running a unix version 020102 (Im not sure if thats correct but its unix for sure). I have no user names and no passwords and need to login to read a tape. Is there any way to do that? I hear... (3 Replies)
Hi all
I am new on sun OS. I have have little experience on linux.
The Story start from this point:
I want to put some script on start-up the terminal, but I cant do that. my shell was sh and I tried so much to find way to do that. at last someone said to me change your shell to bash. I ask how... (4 Replies)
Dear All
I am trying to install my os as :
ok>boot cdrom - install
but receiving the following :
"IDprom checksum error
getexecname() failed
/sbin/rcS /etc/vfstab cannot create
INIT:failed write utmpx enrty
INIT:single user mode
INIT:execle of /etc/sulogin failed
Enter run level"
Can you... (6 Replies)
Discussion started by: hadimotamedi
6 Replies
LEARN ABOUT X11R4
newgrp
NEWGRP(1) User Commands NEWGRP(1)NAME
newgrp - log in to a new group
SYNOPSIS
newgrp [-] [group]
DESCRIPTION
The newgrp command is used to change the current group ID during a login session. If the optional - flag is given, the user's environment
will be reinitialized as though the user had logged in, otherwise the current environment, including current working directory, remains
unchanged.
newgrp changes the current real group ID to the named group, or to the default group listed in /etc/passwd if no group name is given.
newgrp also tries to add the group to the user groupset. If not root, the user will be prompted for a password if she does not have a
password (in /etc/shadow if this user has an entry in the shadowed password file, or in /etc/passwd otherwise) and the group does, or if
the user is not listed as a member and the group has a password. The user will be denied access if the group password is empty and the user
is not listed as a member.
If there is an entry for this group in /etc/gshadow, then the list of members and the password of this group will be taken from this file,
otherwise, the entry in /etc/group is considered.
CONFIGURATION
The following configuration variables in /etc/login.defs change the behavior of this tool:
SYSLOG_SG_ENAB (boolean)
Enable "syslog" logging of sg activity.
FILES
/etc/passwd
User account information.
/etc/shadow
Secure user account information.
/etc/group
Group account information.
/etc/gshadow
Secure group account information.
SEE ALSO id(1), login(1), su(1), sg(1), gpasswd(1), group(5), gshadow(5).
shadow-utils 4.5 01/25/2018 NEWGRP(1)