lvm/etc/svm.cleanup.sh

	svm.cleanup.sh revision 7c478bd95313f5f23a4c958a745db2134aa03244
#! /usr/bin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License, Version 1.0 only
# (the "License").  You may not use this file except in compliance
# with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# ident "%Z%%M% %I% %E% SMI"
#
# Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# SVM Flash cleanup
# Remove existing master SVM configuration on clone after full flash install.
# Restore existing clone SVM configuation after differential flash install.
#

IN_SYS=${FLASH_ROOT}/etc/system
IN_CONF=${FLASH_ROOT}/kernel/drv/md.conf
IN_CF=${FLASH_ROOT}/etc/lvm/mddb.cf

TMP_SYS=/var/tmp/system.1
TMP_CONF=/var/tmp/md.conf.1
TMP_CF=/var/tmp/mddb.cf.1

# Directory where original clone config is saved.
SAVE_DIR=${FLASH_DIR}/flash/svm

if [ "${FLASH_TYPE}" = "FULL" ]; then
    # Full flash install, remove master's SVM configuration from clone.

    # Remove any SVM root entry from /etc/system file.
    nawk '
    BEGIN {delroot=0}
    /^\* Begin MDD root info \(do not edit\)$/ {delroot=1}
    /^\* End MDD root info \(do not edit\)$/ {delroot=0; next}
    {if (delroot == 0) print $0}
    ' ${IN_SYS} > ${TMP_SYS}
    cp ${TMP_SYS} ${IN_SYS}

    # Remove SVM mddb entries from /kernel/drv/md.conf.
    nawk '
    BEGIN {delmddb=0}
    /^# Begin MDD database info \(do not edit\)$/ {delmddb=1}
    /^# End MDD database info \(do not edit\)$/ {delmddb=0; next}
    {if (delmddb == 0) print $0}
    ' ${IN_CONF} > ${TMP_CONF}
    cp ${TMP_CONF} ${IN_CONF}

    # Remove SVM mddb entries from /etc/lvm/mddb.cf.
    nawk '
    /^#/ {print $0}
    ' ${IN_CF} > ${TMP_CF}
    cp ${TMP_CF} ${IN_CF}

else
    # Differential flash install, restore clone SVM configuration.
    # The matrix of master/clone SVM config w/ diff. flash looks like:
    #
    # master    clone    clone after differential flash
    #
    # yes        yes     same as clone prior to diff. flash
    # yes        no      no
    # no         yes     same as clone prior to diff. flash
    # no         no      no
    #

    # restore saved config files
    cp ${SAVE_DIR}/md.conf ${FLASH_ROOT}/kernel/drv/md.conf
    cp ${SAVE_DIR}/devpath ${FLASH_ROOT}/etc/lvm/devpath
    cp ${SAVE_DIR}/md.cf ${FLASH_ROOT}/etc/lvm/md.cf
    cp ${SAVE_DIR}/md.ctlrmap ${FLASH_ROOT}/etc/lvm/md.ctlrmap
    cp ${SAVE_DIR}/md.tab ${FLASH_ROOT}/etc/lvm/md.tab
    cp ${SAVE_DIR}/mddb.cf ${FLASH_ROOT}/etc/lvm/mddb.cf
    cp ${SAVE_DIR}/runtime.cf ${FLASH_ROOT}/etc/lvm/runtime.cf

    # Now process the various permutations for the master and clone
    # /etc/system file SVM root entries.

    # First check if we need to do anything with /etc/system.
    if `cmp -s ${SAVE_DIR}/system ${IN_SYS} >/dev/null 2>&1`; then
        # There is no difference so leave it alone.
        exit 0;
    fi

    # Get any SVM root entry from master /etc/system file.
    MASTER_ROOT=`nawk '
    BEGIN {inroot=0}
    /^\* Begin MDD root info \(do not edit\)$/ {inroot=1; next}
    /^\* End MDD root info \(do not edit\)$/ {inroot=0}
    {if (inroot == 1) print $0}
    ' ${IN_SYS}`

    # Get any SVM root entry from clone /etc/system file.
    CLONE_ROOT=`nawk '
    BEGIN {inroot=0}
    /^\* Begin MDD root info \(do not edit\)$/ {inroot=1; next}
    /^\* End MDD root info \(do not edit\)$/ {inroot=0}
    {if (inroot == 1) print $0}
    ' ${SAVE_DIR}/system`

    # If there is an SVM root entry in the master /etc/system file.
    if [ "${MASTER_ROOT}" ]; then

        # If there is an SVM root entry in the clone /etc/system file.
        if [ "${CLONE_ROOT}" ]; then

        # Restore clone SVM root entry in /etc/system file.
        nawk -v clone_root="${CLONE_ROOT}" '
        BEGIN {newroot=0}
        /^\* Begin MDD root info \(do not edit\)$/ {
            newroot=1
            print $0
            print clone_root
        }
        /^\* End MDD root info \(do not edit\)$/ {newroot=0}
        {if (newroot == 0) print $0}
        ' ${IN_SYS} >${TMP_SYS}
        cp ${TMP_SYS} ${IN_SYS}

        else

        # There is no SVM root entry in the clone so remove the entry
        # from the /etc/system file.
        nawk '
        BEGIN {delroot=0}
        /^\* Begin MDD root info \(do not edit\)$/ {delroot=1}
        /^\* End MDD root info \(do not edit\)$/ {delroot=0; next }
        {if (delroot == 0) print $0}
        ' ${IN_SYS} >${TMP_SYS}
        cp ${TMP_SYS} ${IN_SYS}

        fi

    else
        # Master has no SVM root entry in the /etc/system file.
        if [ "${CLONE_ROOT}" ]; then
        # But clone does have one so we need to add it back in.

        echo "* Begin MDD root info (do not edit)" >> ${IN_SYS}
        echo "${CLONE_ROOT}" >> ${IN_SYS}
        echo "* End MDD root info (do not edit)" >> ${IN_SYS}
        fi

        # If neither master nor clone has SVM root entry then
        # we just leave the system file alone.
    fi
fi

exit 0