A handy script to copy boot (or any other) disk under Solaris. This script uses ufsdump/ufsrestore – unlike the usual dd approach – which allows to use two disks of different architecture, as long as the target disk has sufficient space to accommodate source partitions. This is very useful when upgrading from old disks to new, larger disks.

#!/bin/sh

EMAIL=admin@domain.com
SUBJECT="Boot disk copy on `hostname`"

if [ "$#" != 2 ] ; then
  echo "usage: $0 sdisk tdisk"
  echo "where: sdisk is the source disk (e.g. c0t0d0)"
  echo "       tdisk is the target disk (e.g. c0t1d0)"
  echo "Note:  Please omit slice numbers!"
  exit 1
fi

format/dev/null 2>&1 && S=$1
format/dev/null 2>&1 && T=$2
if [ -z "$S" ] ; then
  echo "ERROR: Source disk $1 does not exist -- exit!" ; exit 2
elif [ -z "$T" ] ; then
  echo "ERROR: Target disk $2 does not exist -- exit!" ; exit 3
fi

clear ; echo "
  ATTENTION: This script will copy the whole disk $S to $T
             If this is NOT what you intended to do, abort
             by pressing Ctrl-C now!

  Are you ready now [N] ? c"
read ans mist ; echo ""
[ "$ans" != "J" -a "$ans" != "j" -a "$ans" != "Y" -a "$ans" != "y" ] && exit 1

prtvtoc /dev/rdsk/${S}s2|fmthard -s - /dev/rdsk/${T}s2     # copy VTOC
for i in `tail -r /etc/mnttab|grep /a|awk '{print $2}'`     # make sure nothing is
  do umount -f $i >/dev/null 2>&1               # mounted under /a ...
done
[ -d /a ] || mkdir /a                         # create /a if not here

SD=/dev/rdsk/$S ; TD=/dev/rdsk/$T               # the raw disk devices
fs=`df -kl | grep `echo $SD | sed -e 's/rdsk/dsk/'` | grep /dsk/ | sed -e 's/^.*(s[0-9]* ).*/1/'`     # fs on boot disk used

for i in $fs;do
  echo "creating file system on ${TD}$i ...c"
  echo y | newfs ${TD}$i >/dev/null 2>&1 ; echo ""     # create filesystems
done

for i in $fs ; do                         # mount new disk under
 echo "copying all data from slice $S$i to $T$i ..."     # /a and copy all data
 M=/a`df -kl|grep ${S}$i|awk '{print $6}'|sed -e 's!/$!!'`
 F=`df -kl|grep ${S}$i|awk '{print $6}'`          # from source disk
 mount `echo ${TD}$i|sed -e 's/rdsk/dsk/'` $M          # to target disk
 ( /etc/init.d/xntpd stop ; sleep 30 ; /etc/init.d/xntpd start ) &
 ufsdump 0f - `fssnap -F ufs -o raw,bs=$M,unlink ${F}`| ( cd $M ; ufsrestore rf - ) >/dev/null 2>&1          # (using ufsdump
 fssnap -F ufs -d ${F} >/dev/null 2>&1               # with UFS snapshot)
 echo ""
done

# Okay, now let's make the new disk bootable:
installboot /usr/platform/`uname -m`/lib/fs/ufs/bootblk `df -kl /a | sed -ne 's/(/dev/)(dsk/[^      ]*).*/1r2/p'`

# and modify the mount entries in /etc/vfstab on new disk:
sed -e "s/${S}/${T}/g" /etc/vfstab > /a/etc/vfstab

# send e-mail
echo "Boot disk copy $S to $T complete on `hostname`" | mailx -s "$SUBJECT" $EMAIL