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- From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick)
- Newsgroups: comp.os.vms
- Subject: Re: Problem in system recovery after fatal failure of VAX3800, help!
- Date: 30 Dec 1992 11:36:56 GMT
- Organization: HST Wide Field/Planetary Camera
- Lines: 79
- Message-ID: <1hs1koINNnqs@gap.caltech.edu>
- References: <1992Dec29.205455.23119@proton.llumc.edu>
- Reply-To: carl@SOL1.GPS.CALTECH.EDU
- NNTP-Posting-Host: sol1.gps.caltech.edu
-
- In article <1992Dec29.205455.23119@proton.llumc.edu>, lin@primus.llumc.edu (P. James Lin) writes:
- >
- >I confront a problem after a fatal fault of a VAX3800 ( power supply failed).
- >The whole backplane unit has been replaced. When I try to boot the system,
- >the audit server is started, all other third party softwares' license
- >are successfully load, the last message on the console shows the VAX-VMS
- >license has been successfully loaded, and then the system hangs forever.
- >No activity is found in the disk i/o.
- >But I can boot the system into single user mode or "mini" mode.
- >
- >Problem 1: What is the next step which hangs the system?
-
- Well, we don't know that. *YET*. Back in the days of 780s, your next step
- would be obvious (given that you'd rooted around in the HELP file on the
- console floppy; everybody involved in this newsgroup would have the right
- mindset to've done that, right?). These days, DEC doesn't tell you as much
- (they're trying to emulate the brain-dead documentation that comes with IBM
- PC's, I suppose). Anyway, the answer is:
- >>>BOOT/R5:1
- SYSBOOT> SET STARTUP_P2 "TRUE"
- SYSBOOT> CONTINUE
- Make sure you've got *LOTS* of paper in your system console. (You don't have a
- hard-copy console? Shame on you! I know, DEC doesn't tell you that having a
- hard-copy console is a MUST, but it really is, if ever your system starts to
- have problems. The list of loaded images you'll get in some system crashes
- will inevitibly overflow the screen of a CRT). Anyway, setting STARTUP_P2 to
- "TRUE" turns on verification during the boot procedure. This means that every
- command the system tries to execute in the Startup process is echoed on the
- console before it's executed. The last command you see on the console is the
- one that hangs the VAX (usually; there's always the dreaded possibility that
- something some detached process does hangs the processor; let's hope that's
- *NOT* your problem).
-
- >I suspect the license database was corrupted during the power supply failure,
- >so I rename the LMF$LICENSE.LDB to another name and them try to boot the
- >system, the message shows the license management facility is not started,
- >login is allowed in OPA0. Then I rename the LMF$LICENSE.LDB back to the
- >original name. After this step, I can not get the license management facility
- >to be started any more. It always goes to the single user mode no matter how
- >I specify the boot flag.
-
- Well, single-user mode is invoked anytime the SYSGEN parameter STARTUP_P1 is
- set to "MINI." One of he first things VMS does in an interactive boot (i.e.,
- when you B/R5:1 or B/1) is to copy any SYSGEN parameters you modified in
- SYSBOOT to your disk. That means that once you've:
- SYSBOOT> SET STARTUP_P1 "MINI"
- you're going to have a minimum system boot until you do another interactive
- bood and:
- SYSBOOT> SET STARTUP_P1 DEFAULT
- Or, you *COULD*, after a minimum boot (by the way, under VMS it's called a
- "Minimum Boot," *NOT* "single-user-mode." The latter is a UNIXism):
- $ MCR SYSGEN
- SYSGEN>USE CURRENT
- SYSGEN>SET STARTUP_P1 DEFAULT
- SYSGEN>EXIT
- $ @SYS$SYSTEM:SHUTDOWN 0 1 0 1 0 1 NONE
- to arrange for a normal boot.
-
- >Problem 2: What's wrong? Does re-installing the auth-pak be the only solution
- > to recover to the previous state?
-
- Time for a micro-flame here: You don't know what's wrong (otherwise, why did
- you post the question?). Just because having a license loaded was the last
- thing that *WORKED*, there's no reason to suppose that that's what's causing
- the problem. Your *FIRST* step should be to figure out what the problem is, by
- using STARTUP_P2 to force verification during the boot process.
-
- Fortunately, before going off into your uninformed (I mean that literally, not
- pejoratively) speculations as to the problem, you gave enough information about
- the problem that a course of action could be recommended.
-
- --------------------------------------------------------------------------------
- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL
-
- Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My
- understanding of astronomy is purely at the amateur level (or below). So
- unless what I'm saying is directly related to VAX/VMS, don't hold me or my
- organization responsible for it. If it IS related to VAX/VMS, you can try to
- hold me responsible for it, but my organization had nothing to do with it.
-