Module: WinMount

Defined in:
lib/fs/modules/WinMount.rb

Instance Method Summary collapse

Instance Method Details

#fs_init ⇒ Object

Raises:

  • (MiqException::MiqVmMountError) 


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# File 'lib/fs/modules/WinMount.rb', line 5

def fs_init
  @guestOS = "Windows"

  @rootFS = MiqFS.getFS(@rootVolume)
  raise MiqException::MiqVmMountError, "WinMount: could not mount root volume" unless @rootFS
  @allFileSystems << @rootFS

  #
  # Build volume ID to drive letter mapping.
  #
  idToDriveLetter = {}
  drives = Win32::SystemPath.driveAssignment(@rootFS)
  if drives.empty?
    idToDriveLetter["#{@rootVolume.diskSig}-#{@rootVolume.lbaStart}"] = "C:"
    $log.debug "WinMount.fs_init: [@rootVolume.diskSig}[email protected]] = [#{@rootVolume.diskSig}-#{@rootVolume.lbaStart}]"
  else
    drives.each do |da|
      idToDriveLetter["#{da[:serial_num]}-#{da[:starting_sector]}"] = da[:name].upcase
      $log.debug "WinMount.fs_init: [da[:serial_num]}-da[:starting_sector] = [#{da[:serial_num]}-#{da[:starting_sector]}]"
    end
  end

  #
  # Build drive letter to file system mapping.
  #
  @driveToFS = {}
  if (lvObj = @rootVolume.dInfo.lvObj) && lvObj.driveHint
    key = lvObj.lvId
    @rootDriveLetter = lvObj.driveHint
    $log.debug "WinMount.fs_init: @rootDriveLetter = lvObj.driveHint = #{@rootDriveLetter}"
  else
    key = "#{@rootVolume.diskSig}-#{@rootVolume.lbaStart}"
    @rootDriveLetter = idToDriveLetter[key]
    $log.debug "WinMount.fs_init: @rootDriveLetter = idToDriveLetter[#{key}] = #{@rootDriveLetter}"
  end
  if @rootDriveLetter.nil?
    $log.debug("WinMount.fs_init: Could not determine root drive letter. Assuming C: Drive")
    @rootDriveLetter = "C:"
    idToDriveLetter[key] = @rootDriveLetter
  end
  @driveToFS[@rootDriveLetter] = @rootFS
  saveFs(@rootFS, @rootDriveLetter, key)

  @osNames = {}
  @volumes.each do |v|
    if (lvObj = v.dInfo.lvObj) && lvObj.driveHint
      key = lvObj.lvId
      dl = lvObj.driveHint
    else
      key = "#{v.diskSig}-#{v.lbaStart}"
      next unless (dl = idToDriveLetter[key])
    end
    @osNames[v.dInfo.hardwareId + ':' + v.partNum.to_s] = dl
    next if v == @rootVolume
    next unless (fs = MiqFS.getFS(v))
    @allFileSystems << fs
    @driveToFS[dl] = fs
    saveFs(fs, dl, key)
  end

  @cwd = "#{@rootDriveLetter}/"
end