67 lines
2.1 KiB
Groff
67 lines
2.1 KiB
Groff
.\" ** You probably do not want to edit this file directly **
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.\" It was generated using the DocBook XSL Stylesheets (version 1.69.1).
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.\" Instead of manually editing it, you probably should edit the DocBook XML
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.\" source for it and then use the DocBook XSL Stylesheets to regenerate it.
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.TH "SULOGIN" "8" "12/07/2005" "System Management Commands" "System Management Commands"
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.SH "NAME"
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sulogin \- Single\-user login
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.SH "SYNTAX"
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.PP
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\fBsulogin\fR
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[\fItty\-device\fR]
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.SH "DESCRIPTION"
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.PP
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\fBsulogin\fR
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is invoked by
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\fBinit\fR
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prior to allowing the user access to the system when in single user mode. This feature may only be available on certain systems where
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\fBinit\fR
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has been modified accordingly, or where the
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\fI/etc/inittab\fR
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has an entry for a single user login.
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.PP
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The user is prompted
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.PP
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Type control\-d to proceed with normal startup,(or give root password for system maintenance):
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.PP
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Input and output will be performed with the standard file descriptors unless the optional device name argument is provided.
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.PP
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If the user enters the correct root password, a login session is initiated. When
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\fIEOF\fR
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is pressed instead, the system enters multi\-user mode.
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.PP
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After the user exits the single\-user shell, or presses
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\fIEOF\fR, the system begins the initialization process required to enter multi\-user mode.
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.SH "CAVEATS"
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.PP
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This command can only be used if
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\fBinit\fR
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has been modified to call
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\fBsulogin\fR
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instead of
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\fI/bin/sh\fR, or if the user has set the
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\fIinittab\fR
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to support a single user login. For example, the line:
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.PP
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co:s:respawn:/etc/sulogin /dev/console
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.PP
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should execute the sulogin command in single user mode.
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.PP
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As complete an environment as possible is created. However, various devices may be unmounted or uninitialized and many of the user commands may be unavailable or nonfunctional as a result.
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.SH "FILES"
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.TP
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\fI/etc/passwd\fR
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user account information
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.TP
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\fI/etc/shadow\fR
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secure user account information
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.SH "SEE ALSO"
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.PP
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\fBlogin\fR(1),
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\fBsh\fR(1),
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\fBinit\fR(8).
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