Class: LinuxAdmin::Disk
- Inherits:
-
LinuxAdmin
- Object
- LinuxAdmin
- LinuxAdmin::Disk
- Defined in:
- lib/linux_admin/disk.rb
Constant Summary collapse
- PARTED_FIELDS =
[:id, :start_sector, :end_sector, :size, :partition_type, :fs_type]
Constants inherited from LinuxAdmin
Instance Attribute Summary collapse
-
#path ⇒ Object
Returns the value of attribute path.
Class Method Summary collapse
Instance Method Summary collapse
- #clear! ⇒ Object
- #create_partition(partition_type, *args) ⇒ Object
- #create_partition_table(type = "msdos") ⇒ Object
- #create_partitions(partition_type, *args) ⇒ Object
- #has_partition_table? ⇒ Boolean
-
#initialize(args = {}) ⇒ Disk
constructor
A new instance of Disk.
- #partitions ⇒ Object
- #size ⇒ Object
Methods included from Common
Constructor Details
#initialize(args = {}) ⇒ Disk
Returns a new instance of Disk.
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# File 'lib/linux_admin/disk.rb', line 61 def initialize(args = {}) @path = args[:path] end |
Instance Attribute Details
#path ⇒ Object
Returns the value of attribute path.
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# File 'lib/linux_admin/disk.rb', line 14 def path @path end |
Class Method Details
Instance Method Details
#clear! ⇒ Object
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# File 'lib/linux_admin/disk.rb', line 176 def clear! @partitions = [] # clear partition table run!(cmd(:dd), :params => { 'if=' => '/dev/zero', 'of=' => @path, 'bs=' => 512, 'count=' => 1}) self end |
#create_partition(partition_type, *args) ⇒ Object
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# File 'lib/linux_admin/disk.rb', line 136 def create_partition(partition_type, *args) create_partition_table unless has_partition_table? start = finish = size = nil case args.length when 1 then start = partitions.empty? ? 0 : partitions.last.end_sector size = args.first finish = start + size when 2 then start = args[0] finish = args[1] else raise ArgumentError, "must specify start/finish or size" end id = partitions.empty? ? 1 : (partitions.last.id + 1) = ('mkpart', '-a', 'opt', partition_type, start, finish) run!(cmd(:parted), :params => { nil => }) partition = Partition.new(:disk => self, :id => id, :start_sector => start, :end_sector => finish, :size => size, :partition_type => partition_type) partitions << partition partition end |
#create_partition_table(type = "msdos") ⇒ Object
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# File 'lib/linux_admin/disk.rb', line 126 def create_partition_table(type = "msdos") run!(cmd(:parted), :params => { nil => ("mklabel", type)}) end |
#create_partitions(partition_type, *args) ⇒ Object
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# File 'lib/linux_admin/disk.rb', line 168 def create_partitions(partition_type, *args) check_if_partitions_overlap(args) args.each { |arg| self.create_partition(partition_type, arg[:start], arg[:end]) } end |
#has_partition_table? ⇒ Boolean
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# File 'lib/linux_admin/disk.rb', line 130 def has_partition_table? result = run(cmd(:parted), :params => { nil => ("print")}) result_indicates_partition_table?(result) end |
#partitions ⇒ Object
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# File 'lib/linux_admin/disk.rb', line 79 def partitions @partitions ||= parted_output.collect { |disk| partition_from_parted(disk) } end |
#size ⇒ Object
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# File 'lib/linux_admin/disk.rb', line 65 def size @size ||= begin size = nil out = run!(cmd(:fdisk), :params => {"-l" => nil}).output out.each_line { |l| if l =~ /Disk #{path}: ([0-9\.]*) ([KMG])B.*/ size = str_to_bytes($1, $2) break end } size end end |