Initial commit

customcd/files/root/rescuebru/blank.sh

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+#!/bin/bash
+# blank.sh
+# Rescue CD Backup & Restore Utility device blanking utility
+# version 7.2.5
+# Rod Wright 1/19/2024
+# Refer to CHANGELOG file for details.
+# -----------------------------------------------------------------------------
+
+PROG_NAME="blank.sh"
+PROG_VERSION=7.2.5
+PROG_REVISION=1
+RBRU_INSTALL_PATH="/root/rescuebru"
+
+source $RBRU_INSTALL_PATH/functions.sh
+
+# test for required arguments
+if [ "$#" -ne 1 ]; then
+    echo "blank.sh: Invalid number of arguments."
+    echo "Usage: blank <target>"
+    echo "target can be drive (/dev/sda) or partition"
+    echo "(/dev/sda1)."
+    echo "If target is a drive, all data including the MBR,"
+    echo "partition table, and any RAID signatures will be lost."
+    echo "If target is a partition, any filesystem on it will"
+    echo "be lost."
+    exit 1
+fi
+
+tgt_dev=$1
+dd_bs=4096
+
+# determine sizes of target
+tgt_size=`blockdev --getsize64 $tgt_dev`
+tgt_blocks=$(($tgt_size / $dd_bs ))
+
+# now do the blanking
+monitor "dd if=/dev/zero bs=$dd_bs count=$tgt_blocks conv=sync,noerror status=noxfer|pv -s $tgt_size|dd of=$tgt_dev bs=$dd_bs" "pausable"
+exit $?