# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1558732658 -7200
# Node ID 2b586f8b40179f7894ecabb9fc9ca93d67b38a68
# Parent  af4351d5e9224c92e3f4dfab56dcbfea10b63242
Added a script that attempts to connect the others to perform partitioning.

diff -r af4351d5e922 -r 2b586f8b4017 makesd-partition
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/makesd-partition	Fri May 24 23:17:38 2019 +0200
@@ -0,0 +1,79 @@
+#!/bin/sh
+
+# Support partitioning of a device using sfdisk.
+#
+# Important tasks:
+#
+# Erase bootloader blocks.
+# Perform partitioning using sfdisk.
+
+PROGNAME=`basename "$0"`
+THISDIR=`dirname "$0"`
+
+EXPAND="$THISDIR/makesd-expand-def"
+PARTSUMMARY="$THISDIR/makesd-partition-summary"
+PARTTABLE="$THISDIR/makesd-partition-table"
+SFDISK="/sbin/sfdisk"
+
+
+
+# Test sfdisk behaviour and obtain useful information.
+
+init_sfdisk()
+{
+    if "$SFDISK" -uS -s "$1" > /dev/null 2>&1 ; then
+        SFDISK_OPTIONS="-uS -L"
+    else
+        SFDISK_OPTIONS=
+    fi
+}
+
+
+
+# Obtain details of the selected device.
+
+if [ ! "$DEV" ] ; then
+    cat 1>&2 <<EOF
+No device specified. Use the DEV environment variable to indicate a device.
+EOF
+    exit 1
+fi
+
+if [ ! -e "$DEV" ] ; then
+    cat 1>&2 <<EOF
+Device not found: $DEV
+EOF
+    exit 1
+fi
+
+# Test for the cylinder alignment option.
+
+if [ "$1" = '--align' ] ; then
+    ALIGN_CYLINDER="$1"
+    shift 1
+else
+    ALIGN_CYLINDER=
+fi
+
+DEF="$1"
+
+if [ ! "$DEF" ] ; then
+    cat 1>&2 <<EOF
+No definition specified.
+EOF
+    exit 1
+fi
+
+# Initialise sfdisk usage.
+
+init_sfdisk "$DEV"
+
+# Expand the definition to partitioning options.
+# Use the options to generate a partition summary.
+# Convert the summary into a table.
+# Present the table to sfdisk.
+
+  "$EXPAND" "$DEF" \
+| xargs "$PARTSUMMARY" \
+| "$PARTTABLE" $ALIGN_CYLINDER \
+| "$SFDISK" $SFDISK_OPTIONS "$DEV"