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https://github.com/freebsd/freebsd-src
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Commit first rc.diskless startup plus modifications to rc.conf and Makefile
to make it work. NOTE! Uses new kern.conf_dir sysctl.
This commit is contained in:
Matthew Dillon
parent
633dcb59ac
commit
5ab0c62f95
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=43198
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@ -1,5 +1,5 @@
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# from: @(#)Makefile 5.11 (Berkeley) 5/21/91
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# $Id: Makefile,v 1.186 1999/01/10 21:08:26 rnordier Exp $
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# $Id: Makefile,v 1.187 1999/01/13 08:20:53 hm Exp $
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SUBDIR= sendmail
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@ -9,7 +9,8 @@ BIN1= aliases amd.map crontab csh.cshrc csh.login csh.logout dm.conf \
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newsyslog.conf pam.conf phones pccard.conf.sample \
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printcap profile protocols \
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rc rc.atm rc.conf rc.devfs rc.firewall rc.isdn rc.network rc.pccard \
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rc.serial rc.shutdown etc.${MACHINE_ARCH}/rc.${MACHINE_ARCH} \
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rc.diskless rc.serial rc.shutdown \
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etc.${MACHINE_ARCH}/rc.${MACHINE_ARCH} \
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remote security services shells syslog.conf \
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etc.${MACHINE_ARCH}/ttys etc.${MACHINE_ARCH}/disktab rpc make.conf \
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${.CURDIR}/../gnu/usr.bin/man/manpath/manpath.config \
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19
etc/rc.conf
19
etc/rc.conf
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@ -6,7 +6,7 @@
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#
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# All arguments must be in double or single quotes.
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#
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# $Id: rc.conf,v 1.75 1999/01/13 17:32:37 joerg Exp $
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# $Id: rc.conf,v 1.76 1999/01/17 03:32:07 grog Exp $
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##############################################################
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### Important initial Boot-time options #####################
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@ -199,6 +199,19 @@ vinum_slices="" # put in names of vinum slices to enable vinum
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##############################################################
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### Allow local configuration override at the very end here ##
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##############################################################
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if [ -f /etc/rc.conf.local ]; then
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. /etc/rc.conf.local
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#
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# If the kernel configuration script MIB exists, use it.
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sysctl -n kern.conf_dir > /dev/null 2>&1
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if [ $? = 0 ]; then
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conf_dir=`sysctl -n kern.conf_dir`
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fi
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if [ "X$conf_dir" = "X" ]; then
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conf_dir=/etc
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fi
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if [ -f $conf_dir/rc.conf.local ]; then
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. $conf_dir/rc.conf.local
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fi
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117
etc/rc.diskless
Normal file
117
etc/rc.diskless
Normal file
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@ -0,0 +1,117 @@
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#
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# /etc/rc.diskless - general BOOTP startup
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#
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# BOOTP has mounted / for us. Assume a read-only mount. We must then
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# - figure out where the NFS mount is coming from
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# - mount /usr via nfs
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# - figure out our IP by querying the interface
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# - setup the configuration script directory
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# - setup the configuration function
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#
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# SEE SAMPLE FILES IN /usr/share/examples/diskless. If you have nothing
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# better to do, try:
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#
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# ln -s /usr/share/examples/diskless /conf
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#
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# but at least read the README.
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# chkerr:
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#
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# Routine to check for error
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#
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# checks error code and drops into shell on failure.
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# if shell exits, terminates script as well as /etc/rc.
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chkerr() {
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if [ $1 != 0 ]; then
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echo "$2 failed: dropping into /bin/sh"
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/bin/sh
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# RESUME
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fi
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}
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# DEBUGGING
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#
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set -v
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# Figure out where the root mount is coming from, synthesize a mount
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# for /usr and mount it. Also mount /var
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#
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# e.g. nfs_root might wind up as "A.B.C.D:/"
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#
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set `/bin/df /`
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nfs_root=$8
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mount_nfs -o ro ${nfs_root}/usr /usr
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mount_nfs -o ro ${nfs_root}/var /var
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chkerr $? "mount of /usr"
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# Figure out our interface and IP.
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#
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bootp_ifc=`route -n get default | fgrep interface | awk '{ print $2; }'`
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bootp_ipa=`ifconfig $bootp_ifc | fgrep inet | head -1 | awk '{ print $2; }'`
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echo "Interface $bootp_ifc IP-Address $bootp_ipa"
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# retarget the configuration directory, where rc.conf.local and rc.local
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# are found. We set the directory to /conf/$bootp_ipa.
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#
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conf_dir=/conf/$bootp_ipa
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sysctl -w kern.conf_dir=$conf_dir
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sysctl -w kern.bootfile=$conf_dir/kernel
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if [ ! -f $conf_dir/rc.conf.local ]; then
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chkerr 1 "access to $conf_dir"
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fi
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# Tell /etc/rc to skip normal disk configuration
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#
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skip_diskconf=YES
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diskless_mount_func=diskless_mount_system
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# Default mounting pass procedure
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#
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# We have to create the filesystems that are expected
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# to be writeable.
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diskless_mount_system() {
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sysctl -w net.inet.ip.portrange.first=4000
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mount_mfs -s 2048 -T qp120at dummy /var/run
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mount_mfs -s 16384 -T qp120at dummy /var/db
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mount_mfs -s 65536 -T qp120at dummy /var/tmp
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mount_mfs -s 65536 -T qp120at dummy /var/spool
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chmod 755 /var/run
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chmod 755 /var/db
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chmod 755 /var/spool
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chmod 1777 /var/tmp
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#
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# XXX /tmp should be a softlink to /var/tmp
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mkdir /var/spool/mqueue
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mkdir /var/spool/ljet4
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mkdir /var/spool/lpd
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mkdir /var/spool/output
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mkdir /var/spool/output/lpd
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chown daemon /var/spool/ljet4
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chown -R root.daemon /var/spool/output
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chgrp daemon /var/spool/lpd
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# /proc may be necessary
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#
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mount_procfs proc /proc
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# We need a R+W /dev ! Use cpio to copy /dev from the
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# server to an MFS mount.
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mkdir /tmp/root
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mount ${nfs_root} /tmp/root
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mount_mfs -s 4096 -i 512 -T qp120at dummy /dev
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( cd /tmp/root ; find -x dev | cpio -o -H newc ) | \
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( cd / ; cpio -i -H newc -d )
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umount /tmp/root
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}
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