Contents

# frozen_string_literal: true

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

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

        # See https://wiki.gentoo.org/wiki/ZFS#ZFS_root
        # https://github.com/openzfs/zfs/blob/master/contrib/dracut/README.dracut.markdown
        def cmdline
          src = "#{MOUNTPOINT}/etc/dracut.conf.d/cmdline.conf"
          line = "kernel_cmdline=\"resume=UUID=#{@uuid_swap} root=zfs:#{@pool_name}/ROOT/#{@n} init=#{@init} zfs.force=1 zfs.zfs_arc_max=536870912\""
          Helpers.echo src, line
        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-0.1.9	lib/getch/filesystem/zfs/config.rb