The Virtualization Cookbook for SLES 10 SP2 - z/VM - IBM

# If there are still command line arguments then the user must have specified DASD
# on the command line. Unset whatever we have in DASD (from the config files) and
# set DASD equal to the rest of the arguments.
[ $# -gt 0 ] && DASD="$@" && unset DASD_ROOT
# Loop through all of the values that we require and double check that they have
# values. If they don't then we will prompt the user to fill them in.
for v in HOSTNAME IPADDR DNS GATEWAY NETMASK MTU SUBCHANNELS SEARCHDNS NETTYPE DASD
do
if [ -z "$(eval echo \$$v)" ]; then
[ "$PROMPT" != "y" ] && echo "Error: missing required value for $v" && exit 1
[ -z "$first" ] && echo "Please enter $target_linux_id's value for: " && first=1
echo -n "$v: "
read in
eval $(echo $v=\"$in\")
export $v
echo "$v=$in" >> /etc/clone/${target_linux_id}.conf
fi
done
# Expand DASD ranges if they have been defined
if [ -n "$DASD" ] ; then
split=$(echo $DASD | tr ',' ' ')
DASD=""
for s in $split
do
out=$(echo $s | grep \-)
rc=$?
[ $rc -eq 0 ] && DASD=${DASD}$(seq -s" " $(echo $s | tr '-' ' ' | tr '\n' ' '))
[ $rc -ne 0 ] && DASD=${DASD}$(echo -n "$s ")
done
[ -n "$DASD_ROOT" ] && DASD=$(echo $DASD | sed "s/$DASD_ROOT//")
DASD="$DASD_ROOT $DASD"
# Assuming that if no DASD_ROOT is specified then the first DASD device will be
# take as root
if [ -z "$DASD_ROOT" ] ; then
DASD_ROOT=$(echo $DASD | awk -F" " '{print $1}')
fi
export DASD
fi
# Grab just the hostname with out any DNS suffixes from the FQDN
target_host=$(echo $target_fqhost | awk -F. '{print $1}')
}
#+--------------------------------------------------------------------------+
function dd_copy
# Use the dd command to copy one disk to another
# Arg 1: Source minidisk - assumed to be online
# Arg 2: Target minidisk - must be brought online and dasdfmt'd
#+--------------------------------------------------------------------------+
{
ret_val=0
source_mdisk=$1
target_mdisk=$2
# Bring the source and target devices online
set_online $source_mdisk
254 The Virtualization Cookbook for RHEL 6