This module manages GRUB 2 bootloader

• Ubuntu
• Debian
• Red Hat
• CentOS
• Gentoo
• SLES / OpenSuse

• Specify a path to a background image
• STRING : Empty by default

• Define some memory addresses for BadRAM filtering
• STRING : Empty by default

• Template used for GRUB config file
• STRING : 'grub2/default_grub.erb'

• Arguments passed to the kernel
• STRING : Empty by default

• Arguments passed to the kernel
• STRING : Empty by default

• Arguments passed to the kernel
• STRING : Empty by default

• Arguments passed to Xen
• STRING : Empty by default

• Define on which kernel the system will boot
• STRING : '0'

• Define on which hard drive the MBR will be write
• STRING : Empty by default

• Define if GRUB should use the UUID in the root= path
• BOOL : false

• Define if GRUB should add the results of os-prober to the menu
• BOOL : false

• Define if GRUB should display the recovery entry in the menu
• BOOL : false

• Define if GRUB should display the submenu
• BOOL : false

• Define which resolution should be used if VBE is used
• STRING : Empty by default

• Define how long (in seconds) grub should wait for a user to enter the menu
• STRING : Not present in config file by default

• Define if the hidden timeout is quiet or not
• BOOL : Not present in config file unless explicitly defined with true or false

• Install the GRUB packages and install GRUB in the MBR
• BOOL : False

• Puppet stuff, define in which state should be the GRUB packages
• STRING : 'present'

• Set default timeout value for GRUB2. Useful to stop headless machines stalling during boot.
• INTEGER : 5

• If true, the last selected entry will become the new default one GRUB_DEFAULT should be set to "saved" and not to 0
• BOOL : False

• Set settings for the serial console
• STRING : Empty by default

• Define on which terminal the ouput should be display
• STRING : Empty by default

• Define how long (in seconds) that the menu should appear
• INTEGER : 5

• Define if GRUB should make a beep when he starts
• STRING : Empty by default

• Regenerate the GRUB configuration after updates
• BOOL : true

    class { 'grub2':
      update_grub               => false,
      install_grub              => false,
      cmdline_linux_default     => 'quiet crashkernel=256M nmi_watchdog=0 console=tty0 console=ttyS1,115200n8',
      terminal                  => 'serial console',
      default_entry             => 0,
      timeout                   => 5,
      serial_command            => 'serial --speed=115200 --unit=1 --word=8 --parity=no --stop=1',
      disable_uuid              => true,
      disable_recovery          => true,
      tune                      => '480 440 1',
      device_install            => '/dev/sda',
      hidden_timeout            => 0,
      hidden_timeout_quiet      => false,
      recordfail_timeout        => 5,
    }

This module also supports the configuration of the parameters it exposes using Hiera. You can do this by namespacing around grub2. For instance, to set the value of timeout to 10, you would use something like that in your Hiera files:

grub2::timeout: 10