Add support to pc-sysinstall's create-part feature, to create non MBR type partitions,

such as GPT and others.

PR:	bin/154684
Submitted by:	kmoore
Approved by:	kib (mentor, implicit)

usr.sbin/pc-sysinstall/backend-partmanager/create-part.sh

@@ -25,7 +25,7 @@
 #
 # $FreeBSD$
 
-# Query a disk for partitions and display them
+# Create partitions on a target disk
 #############################
 
 . ${PROGDIR}/backend/functions.sh
@@ -47,46 +47,52 @@ fi
 
 DISK="${1}"
 MB="${2}"
+TYPE="${3}"
+STARTBLOCK="${4}"
 
 TOTALBLOCKS="`expr $MB \* 2048`"
 
+# If no TYPE specified, default to MBR
+if [ -z "$TYPE" ] ; then TYPE="mbr" ; fi
 
-# Lets figure out what number this slice will be
-LASTSLICE="`fdisk -s /dev/${DISK} 2>/dev/null | grep -v ${DISK} | grep ':' | tail -n 1 | cut -d ':' -f 1 | tr -s '\t' ' ' | tr -d ' '`"
+# Sanity check the gpart type
+case $TYPE in
+	apm|APM) ;;
+	bsd|BSD) ;;
+	ebr|EBR) ;;
+      pc98|pc98) ;;
+	gpt|GPT) ;;
+	mbr|MBR) ;;
+    vtoc8|VTOC8) ;;
+	*) echo "Error: Unknown gpart type: $TYPE" ; exit 1 ;;
+esac
+
+# Lets figure out what number this partition will be
+LASTSLICE="`gpart show $DISK | grep -v -e $DISK -e '\- free \-' -e '^$' | awk 'END {print $3}'`"
 if [ -z "${LASTSLICE}" ] ; then
   LASTSLICE="1"
 else
   LASTSLICE="`expr $LASTSLICE + 1`"
 fi
 
-if [ ${LASTSLICE} -gt "4" ] ; then
-  echo "Error: FreeBSD MBR setups can only have a max of 4 slices"
-  exit 1
-fi
-
-
 SLICENUM="${LASTSLICE}"
 
-# Lets get the starting block
-if [ "${SLICENUM}" = "1" ] ; then
-  STARTBLOCK="63"
-else
-  # Lets figure out where the prior slice ends
-  checkslice="`expr ${SLICENUM} - 1`"
-
-  # Get starting block of this slice
-  fdisk -s /dev/${DISK} | grep -v "${DISK}:" | grep "${checkslice}:" | tr -s " " >${TMPDIR}/pfdisk
-  pstartblock="`cat ${TMPDIR}/pfdisk | cut -d ' ' -f 3`"
-  psize="`cat ${TMPDIR}/pfdisk | cut -d ' ' -f 4`"
-  STARTBLOCK="`expr ${pstartblock} + ${psize}`"
+# Set a 4k Aligned start block if none specified
+if [ "${SLICENUM}" = "1" -a -z "$STARTBLOCK" ] ; then
+  STARTBLOCK="2016"
 fi
 
 
-# If this is an empty disk, see if we need to create a new MBR scheme for it
+# If this is an empty disk, see if we need to create a new scheme for it
 gpart show ${DISK} >/dev/null 2>/dev/null
 if [ "$?" != "0" -a "${SLICENUM}" = "1" ] ; then
- gpart create -s mbr ${DISK}
+ gpart create -s ${TYPE} ${DISK}
 fi
 
-gpart add -b ${STARTBLOCK} -s ${TOTALBLOCKS} -t freebsd -i ${SLICENUM} ${DISK}
+# If we have a starting block, use it
+if [ -z "$STARTBLOCK" ] ; then
+  sBLOCK="-b $STARTBLOCK"
+fi
+
+gpart add ${sBLOCK} -s ${TOTALBLOCKS} -t freebsd -i ${SLICENUM} ${DISK}
 exit "$?"

usr.sbin/pc-sysinstall/pc-sysinstall/pc-sysinstall.sh

@@ -125,7 +125,7 @@ case $1 in
   ;;
 
   # The user is wanting to create a new partition
-  create-part) ${PARTMANAGERDIR}/create-part.sh "${2}" "${3}"
+  create-part) ${PARTMANAGERDIR}/create-part.sh "${2}" "${3}" "${4}" "${5}"
   ;;
 
   # The user is wanting to delete an existing partition