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--- developer:mounting_attached_backup_devices [2019/10/23 00:42]
+++ developer:mounting_attached_backup_devices [2018/10/18 23:59] (current)
admin [USB Device Support Tools]
@@ Line 1: / Line 1: @@
+====== Mounting Attached Devices ======
+This page is dedicated to the development of systems to mount attached devices. The hope is that this page will result in a variety of tools which will be able to assist pre and post action scripts.
+===== Related Links =====
+  * [[:Pre and Post Actions]] (information related to the pre and post action script system of LBackup)
+  * [[developer:Pre and Post Action Tools]] (Developer Link)
+  * [[http://www.macosxhints.com/article.php?story=20060930150059172|Prevent partitions from automatically mounting]] (Mac OS X)
+\\ \\
+/**
+  * [[http://connect.homeunix.com/unicode/?p=139|Prevent partitions from automatically mounting]] (Mac OS X)
+*/
+===== Support for Mac OS X Devices =====
+\\ \\
+==== USB Device Support Tools ====
+The script below supports mounting attached USB devices by name volume name. There is support for FireWire devices and non-removable drives commented out. This code should work. The script requires improvements in various areas. Improvements are welcomed [[http://www.lucidsystems.org/contact|via email]].
+\\ \\
+The script below is a work in progress. Even though it works it is certainly not an ideal solution.
+\\ \\
+<file>
+#!/usr/bin/env ruby
+#
+# (C)2009 Henri Shustak
+# Released Under the GNU GPL
+# Lucid Information Systems
+# http://www.lucidsystems.org
+#
+# WARNING : This code is quite speggitfied. Assistance with tiding up it would be great.
+#
+# This is a script to detect attached but unmounted volumes by Volume name and mount them.
+# Tested on the following versions of Mac OS X :
+#                         - 10.12.6 intel
+#
+#
+#
+# Knowen Issues :  - If you rename the disk then somtimes the partition will not be detected.
+#                    If this happens re-partition the disk and try again.
+#
+# Version 0.3.2
+#
+#
+# Version History
+#  0.3.2 - Added support for USB-Hubs and macOS 10.12.6 - made it a bit messy
+#
+# Note : Using a (list of) UUID('s) is generally a good approach to mounting devices.
+#        That is not how this script works. This script mounts volumes via the volume name.
+#        This approach allows you to add additional devices into a rotation set without
+#        altering this script or the way you call this script. However, it is extremely
+#        important to be aware of the potential problems which may arise by using the
+#        volume name to mount a device before you use this script in any kind
+#        of production setting.
+#
+# Check we are running on Mac OS X
+os_kind = `uname`
+if os_kind.chomp != "Darwin"
+    puts "This script is designed to run on darwin."
+    exit -1
+end
+# Load system profile data
+#
+#   Note : it would be better to use xml -
+#          anyone care to make this work
+#          with the built in RUBy XML system.
+#          It requires parsing a Mac OS X .plist
+#          Assistance with this is greatly appreciated.
+#
+# List of detachable drives
+disks = []
+# Build a list of detachable USB drives.
+system_profiler_output = `system_profiler SPUSBDataType | grep -A 1 "Removable Media: Yes" | grep "BSD Name" | sed 's/^ *//g'`
+# Add detachable FireWire drives to the list
+#system_profiler_output = system_profiler_output + `system_profiler SPFireWireDataType`
+# Add ATA drives to the list.
+#system_profiler_output = system_profiler_output + `system_profiler SPParallelATADataType`
+# Add SATA dirves to the list
+#system_profiler_output = system_profiler_output + `system_profiler SPSerialATADataType`
+device = system_profiler_output.split("BSD Name: ")
+device.each { |d|
+    if d.to_s.include? "disk"
+        disks << "/dev/" + d
+    end
+}
+# Generate a hash of all devices to Volumes names. Disks without volume names will be set to nil
+#
+#    Note : Any suggestions on how to improve this are greatly welcomed.
+#
+$disk_hash = {}
+disks.each { |d|
+    diskcom = "diskutil list #{d}"
+    partitions_list = `#{diskcom}`
+    partitions_list = `echo "#{partitions_list}" | grep -e "disk*[0-9]s*[0-9]" | awk '{print $NF}'`
+    partitions = partitions_list.split("\n")
+    partitions.each { |p|
+        major_system_version=`uname -v | awk -F "Version " '{print $2}' | awk -F "." '{print $1}'`
+    	if major_system_version.to_i < 9
+    		# 10.4 or earlier
+    	    volume_name = `diskutil info #{p.chomp} | grep "Volume Name:" | awk -F "Volume Name:        " '{print $2}'`
+    	else
+    		# 10.5 or later
+	        volume_name = `diskutil info -plist #{p.chomp} | grep -A 1 "<key>VolumeName</key>" | tail -n 1 | awk -F "<string>" '{print $2}' | awk -F "</string>" '{print $1}'`
+	    end
+        if volume_name.chomp.to_s.empty?
+            new_partition = {"#{p.chomp}" => nil}
+        else
+            new_partition = {"#{p.chomp}" => "#{volume_name.chomp}"}
+        end
+        $disk_hash = $disk_hash.merge(new_partition)
+    }
+}
+# Find the device from the volume name (global varible)
+def get_device
+    if $disk_hash.has_value? $volume_name_to_mount
+        device_to_mount = $disk_hash.key $volume_name_to_mount.to_s
+        return device_to_mount
+    else
+        puts "Volume is not available."
+        return nil
+    end
+end
+# check if the device is mounted
+def is_device_mounted (device_to_mount)
+    # find the first disk containing a volume with a matching name
+    mount_point = `diskutil info -plist #{device_to_mount[0]} | grep -A 1 -i MountPoint | tail -1 | awk -F "<string>" '{print $2}' | awk -F "</string>" '{print $1}'`
+    if mount_point.chomp == "" then
+        return false
+    else
+        return true
+    end
+end
+# mount the device
+def mount_first_volume_with_name
+    device_to_mount = get_device
+    if device_to_mount != nil
+        if ( (is_device_mounted(device_to_mount)) == false )
+            device_mounted = `diskutil mount #{device_to_mount} 1>/dev/null 2>&1>/dev/null`
+            if device_mounted.to_i == 0
+                # puts "device already mounted."
+                return 0
+            else
+                return -1
+            end
+        end
+    else
+        return -1
+    end
+end
+# Pull the name of the volume to mount from the command line
+if ARGV.length == 1
+    name_of_volume_to_mount = ARGV[0].to_s.chomp
+else
+    puts "Usage : /path/to/script/ \"<volume_name>\""
+    exit -1
+end
+# Tell this system to mount the disk
+$volume_name_to_mount=name_of_volume_to_mount
+result = mount_first_volume_with_name
+exit result
+</file>

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