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Top Forums UNIX for Dummies Questions & Answers How to boot in single user mode Post 302131843 by ayzeayem on Tuesday 14th of August 2007 03:04:42 AM
Old 08-14-2007
Power Single user mode

Your Unix Version?..

Just to share i'm using unix 5.1b on My HP DS15 Alpha Server.
To boot single user mode:

Open a session as root, and shutdown the system with the following command:

# shutdown -h now

Boot now the system in single-user mode with the following firmware command:

>>> boot -fl s

====================

I'm not sure if it helps...
 

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sys_attrs_bparm(5)						File Formats Manual						sys_attrs_bparm(5)

NAME
sys_attrs_bparm - bparm subsystem attributes DESCRIPTION
This reference page lists and describes attributes for the Boot Parameters (bparm) kernel subsystem. Refer to the sys_attrs(5) reference page for an introduction to the topic of kernel subsystem attributes. Identifies the device from which the system was last booted. This attribute corresponds to the console firmware environment vari- able with the same name. Do not modify this value, which is set when the system boots. A combination of flags that controls the boot loader and kernel. This attribute corresponds to the console firmware environment variable with the same name. Values for the variable are: Boot to multiuser mode. By default, the kernel boots to single-user mode. Enable the kdebug debugger to debug the kernel. By default, kdebug is not enabled in the kernel. Produce full dumps when the system crashes. By default, partial dumps are produced. Prompt for an alternate kernel and special arguments when the system is booted. By default, no questions are asked. Set boot_osflags only at the console prompt or by using the consvar utility. Identifies the boot device to be used when one is not included in the boot command line. This attribute corresponds to the console firmware environment variable with the same name. Set bootdef_dev only at the console prompt or by using the consvar utility. SEE ALSO
Commands: consvar(8) Others: sys_attrs(5) System Administration sys_attrs_bparm(5)
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