eb7bf00306
Instead, load them as part of the rc.d system. This allows us to prioritize the initidiskless script so it runs before the configuration files are loaded and allows us to get rid of the exit 2 hack in /etc/rc. The exit 2 never worked anyway since it did not unset the prior configuration, causing the diskless code to not operate properly. Do a major cleanup and revamping of the diskless code for RCNG. This will be backported to the non-RCNG scripts as well as -stable. With suggestions from: Mike Makonnen <mtm@identd.net> MFC after: 7 days
166 lines
4.7 KiB
Bash
166 lines
4.7 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 1999 Matt Dillon
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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# PROVIDE: diskless
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# REQUIRE: initdiskless rcconf mountcritlocal
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# BEFORE: addswap random
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# KEYWORD: FreeBSD
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dlv=`/sbin/sysctl -n vfs.nfs.diskless_valid 2> /dev/null`
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[ ${dlv:=0} -eq 0 ] && exit 0
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name="diskless2"
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# Provide a function for normalizing the mounting of memory
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# filesystems. This should allow the rest of the code here to remain
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# as close as possible between 5-current and 4-stable.
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# $1 = size
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# $2 = mount point
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# $3 = (optional) bytes-per-inode
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mount_md() {
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if [ -n "$3" ]; then
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bpi="-i $3"
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fi
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/sbin/mdmfs $bpi -s $1 -M md $2
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}
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# If there is a global system configuration file, suck it in.
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#
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if [ -r /etc/rc.subr ]; then
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. /etc/rc.subr
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load_rc_config $name
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elif [ -r /etc/defaults/rc.conf ]; then
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. /etc/defaults/rc.conf
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source_rc_confs
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elif [ -r /etc/rc.conf ]; then
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. /etc/rc.conf
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fi
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# If we do not have a writable /var, create a memory
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# filesystem for /var. We don't have /usr yet so
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# use mkdir instead of touch to test. We want mount
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# to record its mounts so we have to make sure /var/db
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# exists before doing the mount -a.
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#
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if (/bin/mkdir /var/.diskless 2> /dev/null); then
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rmdir /var/.diskless
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else
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echo "+++ mount_md of /var"
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mount_md ${varsize:=32m} /var
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fi
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if [ ! -d /var/db ]; then
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mkdir /var/db
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fi
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# Now we need the rest of our mounts, particularly /usr
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#
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mount -a # chown and chgrp are in /usr
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# Populate /var
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#
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echo "+++ populate /var using /etc/mtree/BSD.var.dist"
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/usr/sbin/mtree -deU -f /etc/mtree/BSD.var.dist -p /var > /dev/null
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case ${sendmail_enable} in
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[Nn][Oo][Nn][Ee])
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;;
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*)
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/usr/sbin/mtree -deU -f /etc/mtree/BSD.sendmail.dist -p / > /dev/null
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;;
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esac
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echo "+++ create log files based on the contents of /etc/newsyslog.conf"
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LOGFILES=`/usr/bin/awk '$1 != "#" { printf "%s ", $1 } ' /etc/newsyslog.conf`
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if [ -n "$LOGFILES" ]; then
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/usr/bin/touch $LOGFILES
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fi
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echo "+++ create lastlog"
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/usr/bin/touch /var/log/lastlog
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# Make sure our aliases database is uptodate, the aliases may have
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# been overriden in /conf.
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#
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/usr/bin/newaliases
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# XXX make sure to create one dir for each printer as requested by lpd
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#
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# If we do not have a writable /tmp, create a memory
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# filesystem for /tmp. If /tmp is a symlink (e.g. to /var/tmp,
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# then it should already be writable).
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#
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if (/bin/mkdir /tmp/.diskless 2> /dev/null); then
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rmdir /tmp/.diskless
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else
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if [ -h /tmp ]; then
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echo "*** /tmp is a symlink to a non-writable area!"
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echo "dropping into shell, ^D to continue anyway."
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/bin/sh
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else
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mount_md ${tmpsize:=20480} /tmp
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chmod 01777 /tmp
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fi
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fi
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if sysctl vfs.devfs.generation > /dev/null 2>&1 ; then
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# we have DEVFS, no worries...
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true
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elif (/bin/mkdir /dev/.diskless 2> /dev/null); then
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# if /dev is writable assume it has already been populated
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# via rc.diskless1
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#
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rmdir /dev/.diskless
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else
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(cd /; find -x dev | cpio -o -H newc) > /tmp/dev.tmp
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mount_md 4096 /dev 512
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(cd /; cpio -i -H newc -d < /tmp/dev.tmp)
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rm -f /tmp/dev.tmp
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fi
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# generate our hostname
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#
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if [ -z "`hostname -s`" ]; then
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hostname=`/usr/bin/kenv dhcp.host-name`
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hostname $hostname
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echo "Hostname is $hostname"
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fi
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# if the info is available via dhcp/kenv
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# build the resolv.conf
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#
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if [ ! -e /etc/resolv.conf ]; then
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echo domain `/usr/bin/kenv dhcp.domain-name` > /etc/resolv.conf
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set `/usr/bin/kenv dhcp.domain-name-servers`
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for ns in `IFS=','; echo $*`; do
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echo nameserver $ns >> /etc/resolv.conf;
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done
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fi
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