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sulogin(1m) [xfree86 man page]

sulogin(1M)                                               System Administration Commands                                               sulogin(1M)

NAME
sulogin - access single-user mode SYNOPSIS
sulogin DESCRIPTION
The sulogin utility is automatically invoked by init when the system is first started. It prompts the user to type the root password to enter system maintenance mode (single-user mode) or to type EOF (typically <CTRL-D>) for normal startup (multi-user mode). The user should never directly invoke sulogin. The sulogin utility can prompt the user to enter the root password on a variable number of serial console devices, in addition to the tra- ditional console device. See consadm(1M) and msglog(7D) for a description of how to configure a serial device to display the single-user login prompt. FILES
/etc/default/sulogin Default value can be set for the following flag: PASSREQ Determines if login requires a password. Default is PASSREQ=YES. /etc/default/login Default value can be set for the following flag: SLEEPTIME If present, sets the number of seconds to wait before login failure is printed to the screen and another login attempt is allowed. Default is 4 seconds. Minimum is 0 seconds. Maximum is 5 seconds. Both su(1M) and login(1) are affected by the value of SLEEPTIME. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsr | +-----------------------------+-----------------------------+ SEE ALSO
login(1), consadm(1M), init(1M), su(1M), attributes(5), msglog(7D) SunOS 5.10 25 Sep 2002 sulogin(1M)

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SULOGIN(8)						       System Administration							SULOGIN(8)

NAME
sulogin - Single-user login SYNOPSIS
sulogin [options] [tty] DESCRIPTION
sulogin is invoked by init when the system goes into single user mode. The user is prompted: Give root password for system maintenance (or type Control-D for normal startup): sulogin will be connected to the current terminal, or to the optional tty device that can be specified on the command line (typically /dev/console). After the user exits the single-user shell or presses control-D at the prompt, the system will continue to boot. OPTIONS
-e, --force If the default method of obtaining the root password via getpwnam(3) from the system fails, manually examine /etc/passwd and /etc/shadow to get the password. If they are damaged or nonexistent, sulogin will start a root shell without asking for a password. Only use the -e option if you are sure the console is physically protected against unauthorized access. -p, --login-shell Specifying this option causes sulogin to start the shell process as a login shell. -t, --timeout seconds Specify the maximum amount of time to wait for user input. By default, sulogin will wait forever. -h, --help Print a help message. -V, --version Output version. 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. AUTHOR
sulogin was written by Miquel van Smoorenburg for sysvinit and later ported to util-linux by Dave Reisner and Karel Zak. AVAILABILITY
The sulogin command is part of the util-linux package and is available from Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils /util-linux/>. util-linux Jul 2012 SULOGIN(8)

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