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      1 # $NetBSD: etc.rc,v 1.4 2020/02/26 16:00:48 riastradh Exp $
      2 #
      3 # Copyright (c) 1997 Perry E. Metzger
      4 # Copyright (c) 1994 Christopher G. Demetriou
      5 # All rights reserved.
      6 # 
      7 # Redistribution and use in source and binary forms, with or without
      8 # modification, are permitted provided that the following conditions
      9 # are met:
     10 # 1. Redistributions of source code must retain the above copyright
     11 #    notice, this list of conditions and the following disclaimer.
     12 # 2. Redistributions in binary form must reproduce the above copyright
     13 #    notice, this list of conditions and the following disclaimer in the
     14 #    documentation and/or other materials provided with the distribution.
     15 # 3. All advertising materials mentioning features or use of this software
     16 #    must display the following acknowledgement:
     17 #          This product includes software developed for the
     18 #          NetBSD Project.  See http://www.NetBSD.org/ for
     19 #          information about NetBSD.
     20 # 4. The name of the author may not be used to endorse or promote products
     21 #    derived from this software without specific prior written permission.
     22 # 
     23 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33 # 
     34 # <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
     35 
     36 PATH=/sbin:/bin:/usr/bin:/usr/sbin:/
     37 export PATH
     38 
     39 lowmemfail()
     40 {
     41 	cat << "EOM"
     42 This machine seems to not have enough memory for this install method.
     43 Please refer to the installation documentation on how to create and
     44 boot a custom kernel and how to install with that.
     45 
     46 Please use the 'halt' command to stop the machine.
     47 EOM
     48 	exec sh
     49 }
     50 
     51 # if /dev has not been populated by init, it may be a stock "MAKEDEV all"
     52 # variant without "opty" - in which case we need to mount a ptyfs
     53 if [ ! -r /dev/ttypf ]; then
     54 	if mount | grep '^ptyfs on /dev/pts' >/dev/null 2>&1; then
     55 		# do not mount it again
     56 	else
     57 		mount -t ptyfs ptyfs /dev/pts
     58 	fi
     59 fi
     60 
     61 # mount a few tempfs to allow modifications over the CD contents
     62 mount -t tmpfs tmpfs /tmp || lowmemfail
     63 mount -t tmpfs tmpfs /var || lowmemfail
     64 mount -t tmpfs -o union tmpfs /etc || lowmemfail
     65 
     66 # prepare important directories in the tmpfses, so dhcpcd and vi will work
     67 mkdir -p /var/run /var/db /var/tmp
     68 
     69 # create a gettytab to autologin and run sysinst (etc/gettytab is a symlink
     70 # to /tmp/gettytab)
     71 echo "# Autostart sysinst" > /tmp/gettytab
     72 echo -n "sysinst:al=root:lo=/install.sh:im=:sp#" >> /tmp/gettytab
     73 stty speed >> /tmp/gettytab
     74 
     75 # done, move on to multiuser mode
     76 exit 0
     77