12 Jun
2000
12 Jun
'00
12:35 a.m.
Hi,
(Sorry if this is a FAQ)
I'm trying to boot the 2.11_rp_unknown image from Boot_Images.
This is what happens:
----------------------
gibbon:/net/scharfzahn/playing/boot_images$ pdp11
PDP-11 simulator V2.3d
sim> set cpu 18b
sim> att rp0 2.11_rp_unknown
sim> boot rp
53Boot from xp(0,0,0) at 0176700
: xp(0,0,0)unix
Boot: bootdev=05000 bootcsr=0176700
2.11 BSD UNIX #11: Tue Jan 6 16:57:02 MET 1998
root@pdp11.begemot.com:/usr/src/sys/HIPPON
panic: buffers
no fs on dev 10/0
dumping to dev 5001 off 512
dump args:EINVAL
HALT instruction, PC: 006606 (JSR R5,3162)
sim>
----------------------
What am I doing wrong?
regards,
chris
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From "Steven M. Schultz"
<sms(a)moe.2bsd.com> Mon Jun 12 09:36:45 2000
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Date: Sun, 11 Jun 2000 16:36:45 -0700 (PDT)
From: "Steven M. Schultz" <sms(a)moe.2bsd.com>
Message-Id: <200006112336.QAA12888(a)moe.2bsd.com>
To: cpg(a)aladdin.de, pups(a)minnie.cs.adfa.edu.au
Subject: Re: problems booting 2.11_rp_unknown
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Hi -
From: "Christian Groessler"
<cpg(a)aladdin.de>
I'm trying to boot the 2.11_rp_unknown image from Boot_Images.
This is what happens:
PDP-11 simulator V2.3d
sim> set cpu 18b
Try "set cpu 22b" instead. Using 18b tells the simulator you have
a 248kb (and 8kb for the I/O page) machine and that is not enough
for 2.11 to load and allocate all the resources it needs.
panic: buffers
Yep -that panic message says the kernel could not allocate any
memory for the buffer cache. I am almost certain that means
there is not enough free memory left out of 248kb.
What am I doing wrong?
Try telling the emulator to use "22bit" mode. If that still
fails let us know. Then it will be time for "Plan B" ;)
Steven Schultz
sms(a)moe.2bsd.com
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From "Christian Groessler"
<cpg(a)aladdin.de> Mon Jun 12 10:37:24 2000
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From: "Christian Groessler" <cpg(a)aladdin.de>
To: "Steven M. Schultz" <sms(a)moe.2bsd.com>
cc: pups(a)minnie.cs.adfa.edu.au
Message-ID: <412568FC.00096F95.00(a)saturn.aladdin.de>
Date: Mon, 12 Jun 2000 01:37:24 +0100
Subject: Re: problems booting 2.11_rp_unknown
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On 06/11/2000 11:36:45 PM GMT "Steven M. Schultz" wrote:
>
>>
>> PDP-11 simulator V2.3d
>> sim> set cpu 18b
>
> Try "set cpu 22b" instead. Using 18b tells the simulator you have
> a 248kb (and 8kb for the I/O page) machine and that is not enough
> for 2.11 to load and allocate all the resources it needs.
>
> panic: buffers
>
> Yep -that panic message says the kernel could not allocate any
> memory for the buffer cache. I am almost certain that means
> there is not enough free memory left out of 248kb.
>
> What am I doing wrong?
>
> Try telling the emulator to use "22bit" mode. If that still
> fails let us know. Then it will be time for "Plan B" ;)
Hmm, sorry, it still doesn't work:
---------------------
gibbon:/net/scharfzahn/playing/boot_images$ pdp11
PDP-11 simulator V2.3d
sim> set cpu 22b
sim> att rp0 2.11_rp_unknown
sim> boot rp
53Boot from xp(0,0,0) at 0176700
: xp(0,0,0)unix
Boot: bootdev=05000 bootcsr=0176700
2.11 BSD UNIX #11: Tue Jan 6 16:57:02 MET 1998
root@pdp11.begemot.com:/usr/src/sys/HIPPON
panic: buffers
no fs on dev 10/0
dumping to dev 5001 off 512
dump args:EINVAL
HALT instruction, PC: 006606 (JSR R5,3162)
sim>
---------------------
What is "Plan B"? :-)
regards,
chris
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From "Steven M. Schultz"
<sms(a)moe.2bsd.com> Mon Jun 12 11:33:37 2000
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Date: Sun, 11 Jun 2000 18:33:37 -0700 (PDT)
From: "Steven M. Schultz" <sms(a)moe.2bsd.com>
Message-Id: <200006120133.SAA13674(a)moe.2bsd.com>
To: cpg(a)aladdin.de, sms(a)moe.2bsd.com
Subject: Re: problems booting 2.11_rp_unknown
Cc: pups(a)minnie.cs.adfa.edu.au
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From: "Christian Groessler"
<cpg(a)aladdin.de>
Hmm, sorry, it still doesn't work:
sim> set cpu 22b
sim> att rp0 2.11_rp_unknown
sim> boot rp
What is "Plan B"? :-)
Plan B is to specify the amount of memory directly. Simply saying
"set cpu 22B" tells the emulator to use 22 bit addressing - but it
does not say how much memory the system has (it's possible to have
1mb of memory even though ~4mb is possible).
Try using both "set cpu 22B" and "set cpu 2048K" - that worked here.
It may well be that only "set cpu 2048K" is actually needed - I didn't
try that by itself.
Script started on Sun Jun 11 18:30:40 2000
moe.1-> cat f
set cpu 22B
set cpu 2048K
att rp0 rp
boot rp
moe.2-> pdp11 f
PDP-11 simulator V2.3d
53Boot from xp(0,0,0) at 0176700
:
: xp(0,0,0)unix
Boot: bootdev=05000 bootcsr=0176700
2.11 BSD UNIX #11: Tue Jan 6 16:57:02 MET 1998
root@pdp11.begemot.com:/usr/src/sys/HIPPON
attaching lo0
phys mem = 2097152
avail mem = 1668352
user mem = 307200
January 8 06:50:29 init: configure system
lp 0 csr 177514 vector 200 attached
rl 0 csr 174400 vector 160 attached
tm 0 csr 172520 vector 224 attached
xp 0 csr 176700 vector 254 attached
cn 1 csr 176500 vector 300 skipped: No CSR.
cn 2 csr 176510 vector 310 skipped: No CSR.
cn 3 csr 176520 vector 320 skipped: No CSR.
cn 4 csr 176530 vector 330 skipped: No CSR.
erase, kill ^U, intr ^C
# halt
syncing disks... done
halting
HALT instruction, PC: 000014 (MOV #1,12456)
sim> q
Goodbye
moe.3-> exit
exit
Script done on Sun Jun 11 18:30:59 2000
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From "Christian Groessler"
<cpg(a)aladdin.de> Mon Jun 12 23:34:47 2000
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From: "Christian Groessler" <cpg(a)aladdin.de>
To: "Steven M. Schultz" <sms(a)moe.2bsd.com>
cc: pups(a)minnie.cs.adfa.edu.au
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Date: Mon, 12 Jun 2000 14:34:47 +0100
Subject: Re: problems booting 2.11_rp_unknown
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On 06/12/2000 01:33:37 AM GMT "Steven M. Schultz" wrote:
Plan B is to specify the amount of memory directly. Simply saying
"set cpu 22B" tells the emulator to use 22 bit addressing - but it
does not say how much memory the system has (it's possible to have
1mb of memory even though ~4mb is possible).
Try using both "set cpu 22B" and "set cpu 2048K" - that worked
here.
It may well be that only "set cpu 2048K" is actually needed - I didn't
try that by itself.
It works :-) :-)
Thanks for your help!
regards,
chris
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From Tim Bradshaw <tfb(a)cley.com> Tue Jun 13
00:11:30 2000
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To: PUPS(a)minnie.cs.adfa.edu.au
Subject: Re: PLEASE TAKE THIS ELSEWHERE (was Re: RX50 on RQDX3 on 2.11BSD)
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* David O'Brien wrote:
This goes back to the UHS / PUPS discussion. I
didn't vote so before,
but maybe it is time to separate the mail for the two. I agree that the
first posts were interesting in the historical insight that could be
gained. But this thread has turned into a rather long hardware
discussion applicable to only a handful of people that have this
hardware.
I do not mean to be mean, but it seems moving this to
some PDP-11 list (I
guess one needs to be created) would be possible.
Please don't. I love reading discussions of random old bits of
hardware, and such discussions have gone on on the PUPS list for a
long time.
--tim
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Christian Groessler