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 traditional 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:

See Also

login(1), consadm(1m), init(1M), su(1M), attributes(5), msglog(7D)