Contents

module Getch
  module FileSystem
    module Zfs
      class Config < Device
        def initialize
          super
          gen_uuid
          @root_dir = MOUNTPOINT
          @init = '/usr/lib/systemd/systemd'
        end

        def fstab
          file = "#{@root_dir}/etc/fstab"
          datas = data_fstab
          File.write(file, datas.join("\n"))
        end

        def systemd_boot
          return if ! Helpers::efi? 
          esp = '/efi'
          dir = "#{@root_dir}/#{esp}/loader/entries/"
          datas_gentoo = [
            'title Gentoo Linux',
            'linux /vmlinuz',
            'initrd /initramfs',
            "options resume=UUID=#{@uuid_swap} root=ZFS=#{@pool_name}/ROOT/#{@n} init=#{@init} dozfs"
          ]
          File.write("#{dir}/gentoo.conf", datas_gentoo.join("\n"))
        end

        # See https://wiki.gentoo.org/wiki/ZFS#ZFS_root
        def grub
          return if Helpers::efi?
          file = "#{@root_dir}/etc/default/grub"
          cmdline = [ 
            "GRUB_CMDLINE_LINUX=\"resume=UUID=#{@uuid_swap} root=ZFS=#{@pool_name}/ROOT/#{@n} init=#{@init} dozfs\""
          ]
          File.write("#{file}", cmdline.join("\n"), mode: 'a')
        end

        private

        def gen_uuid
          @uuid_swap = `lsblk -o "UUID" #{@dev_swap} | tail -1`.chomp()
          @uuid_esp = `lsblk -o "UUID" #{@dev_esp} | tail -1`.chomp() if @dev_esp
        end

        def data_fstab
          efi = @dev_esp ? "UUID=#{@uuid_esp} /efi vfat noauto,noatime 1 2" : ''
          swap = @dev_swap ? "UUID=#{@uuid_swap} none swap discard 0 0" : ''

          [ efi, swap ]
        end
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
getch-0.1.6	lib/getch/filesystem/zfs/config.rb