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76 lines
1.9 KiB
Plaintext
76 lines
1.9 KiB
Plaintext
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Date: Mon, 16 Feb 87 15:04:41 EST
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From: katinsky@gauss.rutgers.edu (David Katinsky)
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To: rms@prep.ai.mit.edu
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Subject: 3b2 procedure to raise MAXMEM
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Below is the procedure I followed to allow enough memory for GnuEmacs to run
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on my 3b2/400. The end result of this is that a process can snarf up to 2Mb
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of memory. This can be a bit dangerous on a 2Mb machine, but I tried it and
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it worked ok.
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-------------------------------------------------------------------------------
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In the simplest case, these are the procedures to reconfigure a 3bx kernel.
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1] cd /etc/master.d
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`ls` shows the files to be:
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README ctc* hdelog idisk ipc iuart kernel mau
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mem msg ports* prf sem shm stubs sxt
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sys xt
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2] Edit the file which contains the parameter[s] you wish to change.
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In the following excerpt from /etc/master.d/kernel the value MAXMEM
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was raised from 256 to 1024.
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In V.3.0 and later releases, the parameter in question is MAXUMEM
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instead of MAXMEM.
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*
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* The following entries form the tunable parameter table.
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*
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NCALL = 30
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NPROC = 60
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NTEXT = 58
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NCLIST = 188
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* maxmem is number of pages (2K) was 256 --dmk
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MAXMEM = 1024
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MAXUP = 25
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* hashbuf must be a power of 2
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NHBUF = 128
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NPBUF = 8
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3] cd /boot
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4] mkboot -k KERNEL
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5] shutdown -i5 -g0 -y
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This will take the machine down and bring it back up into firmware
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mode. When you see that the machine has reached this state, type the
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firmware password (default=mcp). The machine will ask for the name of
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a program to execute. At this prompt enter /etc/system . The machine
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should start to boot and display its configuration data.
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8701271222 dmk
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[katinsky@topaz.rutgers.edu]
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-------------------------------------------------------------------------------
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I do not feel that having the default firmware password is a
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problem... but if you wish to edit it out, feel free.
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dmk
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