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Full Discussion: Full File System
Top Forums UNIX for Advanced & Expert Users Full File System Post 30007 by Perderabo on Tuesday 15th of October 2002 11:33:29 AM
Old 10-15-2002
I believe that you can get to single user mode with a full root filesystem. If not, then yes, you will need to boot the cd.

But first you need an ok prompt. The procedure to get one varies according to your hardware. With a serial console it is just the break character. I have heard that Solaris 8 has changed this to:
C/R control-b ~
And you need .5 seconds between each char but not more than 5 seconds in total it says here. I'm not sure how much of this I believe...

With a graphic head the sequence is STOP-A.

There may be key which need to be in a certain position.

And it may be some other sequence for your setup. But these are the ones I know.
 

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LEARN ABOUT XFREE86

sulogin

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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