Manual Mirroring

 
                     This script assumes that it is called /opt/local/etc/rootcopy. Fundamentally, it performs the following steps
                    (words in capital letters are variables in the script): 

                          It makes MOUNTDIR, a mount point for the duplication, if it doesn't already exist. 
                          It duplicates the SRC disk's partitions onto DEST disk. 
                          It makes DEST bootable. 
                          It does a newfs on each DEST partition. 
                          It does a ufsdump pipe to a ufsrestore for each partition. 
                          On the root DEST partition, it modifies /etc/vfstab to change each mention of SRC to DEST. 
                          On the root DEST partition, it renames itself so it will not run accidentally if you boot off of the DEST disk. 
                          It echoes some state information, for logging purposes. 

                    The fmthard command is very useful for duplicating the partitioning from one disk to another. Unfortunately, it has sometimes
                    failed to copy the partition information in testing (saying that Partition 0 not aligned on cylinder boundary). If this is the case
                    when you run it, you'll need to manually duplicate the partition to your copy disk before you run the script and remove the
                    fmthard command from the script. 

                    Without further ado, the script: 

                    #!/bin/sh
                    # Original Script written by Constantin Ionescu
                    # Modified by Carlo Cosolo
                    # Modified by Peter Baer Galvin
                    # Modified by John West
                    # Use and distribute freely

                    # Define variables for use in the script
                    # ! Important, these must be set correctly !

                    # The root disk to duplicate (leave off slice numbers and path)
                    SRC=c0t0d0

                    # The empty disk to duplicate it to (leave off slice numbers and path)
                    DEST=c0t1d0

                    # The directory to mount destination partitions on while duplicating
                    MOUNTDIR=/dup_0

                    # The file name of this script, to rename it on the destination to avoid execution
                    SCRIPT=/opt/local/etc/rootcopy

                    # The slices that should be copied
                    SLICES="s0 s3 s4 s6 s7"

                    echo ====================================
                    echo Disk Copy script started `date`
                    echo

                    # Make sure the mount point for duplicate partitions exists
                    if [ ! -d $MOUNTDIR ]; then
                      mkdir $MOUNTDIR
                      chmod 700 $MOUNTDIR
                    fi

                    # Partition the duplicate disk, make filesystems, make it bootable
                    prtvtoc /dev/rdsk/${SRC}s2 > /tmp/vtoc
                    fmthard -s /tmp/vtoc /dev/rdsk/${DEST}s2
                    installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk /dev/rdsk/${DEST}s0

                    # Modify the following loop to handle any special cases
                    for fs in $SLICES
                    do
                      newfs /dev/dsk/${DEST}${fs} < /dev/null; mount /dev/dsk/${DEST}${fs} ${MOUNTDIR};
                      ufsdump 0f - /dev/dsk/${SRC}${fs}|(cd ${MOUNTDIR}; ufsrestore rf -);
                      if [ $fs = "s0" ]; then
                        sed 's/${SRC}/${DEST}/g' /etc/vfstab > ${MOUNTDIR}/etc/vfstab;
                        mv ${MOUNTDIR}/${SCRIPT} ${MOUNTDIR}/${SCRIPT}.DONTRUN;
                      fi
                      umount ${MOUNTDIR}
                    done

                    echo
                    echo Disk Copy script ended `date`
                    echo ====================================
                    echo

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