I neede help!!! Post: 11279

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Top Forums UNIX for Dummies Questions & Answers I neede help!!! Post 11279 by dpi209 on Saturday 1st of December 2001 10:25:52 AM

12-01-2001

Registered User

Hi,

getting into single user mode sounds good to me to gain root access, so IMHO your task should be to

- find the right path for booting
- find the right boot ARG to enter single user mode.

For the first task the tests could be useful (at least it helped me to find the boot path for an old HP 9000 800 series...)
Look if you can find a test to show you the hard drive/scsi subsystem information. You should get something showing you the hardware paths of your hard drive and your tape device (mentioned as rz1 and tz25 in the bootup list).

It should be something like
1/rz(1,0,0) ...

Next, you should take a look what

Code:

? boot

tells you. There's a chance that the DEC box lists up arguments for the boot command.

My guess would be that you'll have to type something like
[code]boot 1/rz(1,0,0)/vmunix -i 1[code]
to boot up in single user mode.
But I'm neither a Unix guru nor did i have to work with a DEC box up to now.

Keep trying, and good luck!!!

dpi209

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LEARN ABOUT POSIX

installboot

installboot(1M) 														   installboot(1M)

NAME

       installboot - install bootblocks in a disk partition

SYNOPSIS

       installboot bootblk raw-disk-device

       The boot(1M) program, ufsboot, is loaded from disk by the bootblock program which resides in the boot area of a disk partition.

       The  ufs  boot objects are platform-dependent, and reside in the /usr/platform/platform-name/lib/fs/ufs directory. The platform name can be
       found using the -i option of uname(1).

       The installboot utility is a SPARC only program. It is not supported on the  architecture.  users should use installgrub(1M) instead.

       bootblk	       The name of the bootblock code.

       raw-disk-device The name of the disk device onto which the bootblock code is to be installed; it must be a character device which is  read-
		       able and writable. Naming conventions for a SCSI or IPI drive are c?t?d?s? and c?d?s? for an IDE drive.

       Example 1: Installing UFS Boot Block

       To install a ufs boot block on slice 0 of target 0 on controller 1 of the platform where the command is being run, use:

	      example# installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk 
		   /dev/rdsk/c1t0d0s0

       /usr/platform/platform-name/lib/fs/ufs

	   directory where ufs boot objects reside.

       /platform/platform-name/ufsboot

	   second level program to boot from a disk or CD

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

       od(1), uname(1), boot(1M), init(1M), kadb(1M), kernel(1M), monitor(1M), reboot(1M), rpc.bootparamd(1M), init.d(4), attributes(5)

WARNINGS

       The installboot utility fails if the bootblk or openfirmware files do not exist or if the raw disk device is not a character device.

								    11 Apr 2005 						   installboot(1M)