tim@tim.ingr.com (Tim Anderson) (01/19/91)
How can you boot an RS6000 into single user mode without booting from
floppies and without previously modifying /etc/inittab???
I was configuring NIS and inadvertently tried to bind to an unreachable
machine - during a reboot shortly thereafter the console began printing
a message that the NIS server was not responding and it was retrying the
connection attempt. I searched for ways to boot into single user to
modify the rc.nfs file, but could not locate any documentation on how to
do this. Eventually I was able to get the machine to boot without trying
to start NIS, but don't ask me how I did it! Does anybody know how to
accomplish this task (assuming I have the key to the system lock).
--
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/_____________________________________________/_______________________/pemurray@miavx1.acs.muohio.edu (Peter Murray) (01/22/91)
In article <9929@b11.ingr.com>, tim@tim.ingr.com (Tim Anderson) writes: > How can you boot an RS6000 into single user mode without booting from > floppies and without previously modifying /etc/inittab??? > > I was configuring NIS and inadvertently tried to bind to an unreachable > machine - during a reboot shortly thereafter the console began printing > a message that the NIS server was not responding and it was retrying the > connection attempt. I searched for ways to boot into single user to > modify the rc.nfs file, but could not locate any documentation on how to > do this. Eventually I was able to get the machine to boot without trying > to start NIS, but don't ask me how I did it! Does anybody know how to > accomplish this task (assuming I have the key to the system lock). Hehehe. I have to laugh. We did the same thing a week ago. Here's what you need to do: 1. Grab your OS distribution media and the IBM AIX Version 3 Installation Kit instruction manual. 2. Boot from the distribution media following the instructions in the manual. 3. When you get the "AIX 3.1 INSTALLATION AND MAINTENANCE" menu, select option 5 ("Perform System Maintenance"). 4. Your now in sort of a single user mode. You need to enter one more command to get your disks mounted: (the magic command) /etc/continue hdisk0 When that is done processing, you should be in single user mode. Be warned, though (as the guy on the phone did AT LEAST a half a dozen times) IBM can't support anything you do now. It is recommended that you call your Service Dude to come up and fix your machine. But if you know what your doing, I say go for it. Peter -- Peter Murray Neat UNIX Stunts #7: pemurray@miavx1.bitnet 176 Thompson Hall csh> %blow pmurray@apsvax.aps.muohio.edu Oxford, OH 45056 NeXT Mail: pmurray@next4.acs.muohio.edu
gmoff@ccu1.aukuni.ac.nz (Moffat) (01/25/91)
tim@tim.ingr.com (Tim Anderson) writes: >How can you boot an RS6000 into single user mode without booting from >floppies and without previously modifying /etc/inittab??? cd /; shutdown -m (Can't remember where I read this) Read man for shutdown & telinit for more info -- Graeme Moffat, Phone : +64 9 737 999 x8384 Computer Aided Design Centre, Fax : +64 9 366 0702 School of Engineering, Mail : Private Bag, Auckland, NZ University of Auckland Email : g.moffat@aukuni.ac.nz