Class: Bootloader::Grub2Base

Inherits:
BootloaderBase show all
Includes:
Yast::I18n, Yast::Logger
Defined in:
src/lib/bootloader/grub2base.rb

Overview

Common base for GRUB2 specialized classes rubocop:disable Metrics/ClassLength

Direct Known Subclasses

Grub2, Grub2EFI

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from BootloaderBase

#prepare, #proposed?, #read?, #summary, #write_sysconfig

Constructor Details

#initialize ⇒ Grub2Base

Returns a new instance of Grub2Base.



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# File 'src/lib/bootloader/grub2base.rb', line 68

def initialize
  super

  textdomain "bootloader"
  @password = ::Bootloader::GRUB2Pwd.new
  @grub_default = ::CFA::Grub2::Default.new
  @sections = ::Bootloader::Sections.new
  @pmbr_action = :nothing
  @explicit_cpu_mitigations = false
  @update_nvram = true
end

Instance Attribute Details

#console ⇒ Object

Returns the value of attribute console.



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# File 'src/lib/bootloader/grub2base.rb', line 62

def console
  @console
end

#grub_default ⇒ Object

Returns the value of attribute grub_default.



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# File 'src/lib/bootloader/grub2base.rb', line 44

def grub_default
  @grub_default
end

#password ⇒ Object

Returns the value of attribute password.



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# File 'src/lib/bootloader/grub2base.rb', line 39

def password
  @password
end

#pmbr_action ⇒ Object

Returns the value of attribute pmbr_action.



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# File 'src/lib/bootloader/grub2base.rb', line 46

def pmbr_action
  @pmbr_action
end

#sections ⇒ Object (readonly)

Returns the value of attribute sections.



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# File 'src/lib/bootloader/grub2base.rb', line 41

def sections
  @sections
end

#secure_boot ⇒ Boolean

Returns current secure boot setting.

Returns:

  • (Boolean) —

    current secure boot setting



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# File 'src/lib/bootloader/grub2base.rb', line 54

def secure_boot
  @secure_boot
end

#stage1 ⇒ Object

Returns the value of attribute stage1.



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# File 'src/lib/bootloader/grub2base.rb', line 66

def stage1
  @stage1
end

#trusted_boot ⇒ Boolean

Returns current trusted boot setting.

Returns:

  • (Boolean) —

    current trusted boot setting



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# File 'src/lib/bootloader/grub2base.rb', line 50

def trusted_boot
  @trusted_boot
end

#update_nvram ⇒ Boolean

Returns current update nvram setting.

Returns:

  • (Boolean) —

    current update nvram setting



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# File 'src/lib/bootloader/grub2base.rb', line 58

def update_nvram
  @update_nvram
end

Instance Method Details

#cpu_mitigations ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 98

def cpu_mitigations
  CpuMitigations.from_kernel_params(grub_default.kernel_params)
end

#cpu_mitigations=(value) ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 106

def cpu_mitigations=(value)
  log.info "setting mitigations to #{value}"
  @explicit_cpu_mitigations = true
  value.modify_kernel_params(grub_default.kernel_params)
end

#disable_serial_console ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 206

def disable_serial_console
  @console = nil
  grub_default.kernel_params.remove_parameter(serial_console_matcher)
  grub_default.serial_console = ""
end

#enable_serial_console(console_arg_string) ⇒ Object

Raises:



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# File 'src/lib/bootloader/grub2base.rb', line 195

def enable_serial_console(console_arg_string)
  @console = SerialConsole.load_from_console_args(console_arg_string)
  raise ::Bootloader::InvalidSerialConsoleArguments unless @console

  grub_default.serial_console = console.console_args

  placer = CFA::ReplacePlacer.new(serial_console_matcher)
  kernel_params = grub_default.kernel_params
  kernel_params.add_parameter("console", console.kernel_args, placer)
end

#explicit_cpu_mitigations ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 102

def explicit_cpu_mitigations
  @explicit_cpu_mitigations ? cpu_mitigations : nil
end

#include_os_prober_package? ⇒ Boolean

Checks if the os-prober package should be included.

This default implementation checks if os-prober is supported on the current architecture (all except s/390) and if the package is available (not all products include it).

Returns:

  • (Boolean) —

    true if the os-prober package should be included; false otherwise.



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# File 'src/lib/bootloader/grub2base.rb', line 191

def include_os_prober_package?
  OsProber.available?
end

#merge(other) ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 165

def merge(other)
  super

  merge_grub_default(other)
  merge_password(other)
  merge_pmbr_action(other)
  merge_sections(other)

  self.trusted_boot = other.trusted_boot unless other.trusted_boot.nil?
  self.secure_boot = other.secure_boot unless other.secure_boot.nil?
  self.update_nvram = other.update_nvram unless other.update_nvram.nil?
end

#packages ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 178

def packages
  res = super
  res << OsProber.package_name if include_os_prober_package?
  res
end

#pmbr_setup(*devices) ⇒ Object

set pmbr flags on boot disks TODO: move it to own place



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# File 'src/lib/bootloader/grub2base.rb', line 84

def pmbr_setup(*devices)
  return if @pmbr_action == :nothing

  action_parted = case @pmbr_action
  when :add    then "on"
  when :remove then "off"
  else raise "invalid action #{action}"
  end

  devices.each do |dev|
    Yast::Execute.locally("/usr/sbin/parted", "-s", dev, "disk_set", "pmbr_boot", action_parted)
  end
end

#propose ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 149

def propose
  super

  propose_os_probing
  propose_terminal
  propose_timeout
  propose_encrypted
  propose_grub_default
  propose_serial
  propose_xen_hypervisor

  self.trusted_boot = false
  self.secure_boot = Systeminfo.secure_boot_supported?
  self.update_nvram = true
end

#read ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 112

def read
  super

  begin
    grub_default.load
  rescue Errno::ENOENT
    raise BrokenConfiguration, _("File /etc/default/grub missing on system")
  end

  grub_cfg = CFA::Grub2::GrubCfg.new
  begin
    grub_cfg.load
  rescue Errno::ENOENT
    # there may not need to be grub.cfg generated (bnc#976534),(bsc#1124064)
    log.info "/boot/grub2/grub.cfg is missing. Defaulting to empty one."
  end
  @sections = ::Bootloader::Sections.new(grub_cfg)
  log.info "grub sections: #{@sections.all}"

  self.trusted_boot = Systeminfo.trusted_boot_active?
  self.secure_boot = Systeminfo.secure_boot_active?
  self.update_nvram = Systeminfo.update_nvram_active?
end

#serial_console? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'src/lib/bootloader/grub2base.rb', line 212

def serial_console?
  !console.nil?
end

#write(etc_only: false) ⇒ Object 



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# File 'src/lib/bootloader/grub2base.rb', line 136

def write(etc_only: false)
  super

  log.info "writing /etc/default/grub #{grub_default.inspect}"
  grub_default.save
  @sections.write
  @password.write
  return if etc_only

  Yast::Execute.on_target("/usr/sbin/grub2-mkconfig", "-o", "/boot/grub2/grub.cfg",
    env: systemwide_locale)
end