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From: frank@croton.dec.com (Frank Wortner)
Newsgroups: comp.unix.ultrix
Subject: Re: creating extra swap partitions
Message-ID: <1487@riscy.dec.com>
Date: 18 Sep 89 14:43:17 GMT
References: <8871@batcomputer.tn.cornell.edu>
Sender: news@riscy.dec.com
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Organization: Digital Equipment Corporation, NYC
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In article <8871@batcomputer.tn.cornell.edu>, eric@batcomputer.tn.cornell.edu (Eric Fielding) writes:

> what does one have to do to create a second swap partition on a second disk
> drive (in addition to the default b on the system disk)?  I tried changing the
> partition size with 'chpt' of my /dev/rrz3b partition and entering it into my
> /etc/fstab as a swap partition, but "swapon -a" complains that it must be a
> block device. This happens with or without running 'mkfs' on that partition.
> Is there some other program to run to create a "block device" for swapping?
> Do you have to specify the swap partitions in the kernal configuration?
> (Oh, in case it makes any difference this is Ultrix 3.0 on a PMAX.)
> 
> 				++Eric Fielding
> eric@jasper.tn.cornell.edu

The "block device" is the non-raw partition.  The entry in /etc/fstab should
list /dev/rz3b, not /dev/rrz3b.

You do have to reconfigure the kernel to add a second swap partition.  The
configuration file in /sys/conf/mips should have a line like this:

config vmunix root on rz0a swap on rz0b and rz3b dumps on rz0b

If you want, you can run /etc/doconfig, reply to its questions, and it will
generate a config file for you.

Before you boot the new kernel, make sure that you have special files in
/dev for rz3.

Enjoy!
					Frank