Class BoxGrinder::LinuxHelper
In: lib/boxgrinder-build/helpers/linux-helper.rb
lib/boxgrinder-build/helpers/linux-helper.rb
Parent: Object

Methods

Public Class methods

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 23
23:     def initialize(options = {})
24:       @log = options[:log] || LogHelper.new
25:     end

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 23
23:     def initialize(options = {})
24:       @log = options[:log] || LogHelper.new
25:     end

Public Instance methods

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 63
63:     def kernel_image_name(guestfs)
64:       guestfs.sh("ls -1 /boot | grep initramfs | wc -l").chomp.strip.to_i > 0 ? "initramfs" : "initrd"
65:     end

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 63
63:     def kernel_image_name(guestfs)
64:       guestfs.sh("ls -1 /boot | grep initramfs | wc -l").chomp.strip.to_i > 0 ? "initramfs" : "initrd"
65:     end

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 47
47:     def kernel_version(guestfs)
48:       kernel_versions = guestfs.ls("/lib/modules")
49:       version = kernel_versions.last
50: 
51:       if kernel_versions.size > 1
52:         kernel_versions.each do |v|
53:           if v.match(/PAE$/)
54:             version = v
55:             break
56:           end
57:         end
58:       end
59: 
60:       version
61:     end

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 47
47:     def kernel_version(guestfs)
48:       kernel_versions = guestfs.ls("/lib/modules")
49:       version = kernel_versions.last
50: 
51:       if kernel_versions.size > 1
52:         kernel_versions.each do |v|
53:           if v.match(/PAE$/)
54:             version = v
55:             break
56:           end
57:         end
58:       end
59: 
60:       version
61:     end

Returns valid array of sorted mount points

’/’, ’/home‘
=> [’/’, ’/home’]
’/tmp-eventlog’, ’/’, ’/ubrc’, ’/tmp-config‘
=> [’/’, ’/ubrc’, ’/tmp-config’, ’/tmp-eventlog’]

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 32
32:     def partition_mount_points(partitions)
33:       partitions.keys.sort do |a, b|
34:         if a.count('/') > b.count('/')
35:           v = 1
36:         else
37:           if a.count('/') < b.count('/')
38:             v = -1
39:           else
40:             v = a.length <=> b.length
41:           end
42:         end
43:         v
44:       end
45:     end

Returns valid array of sorted mount points

’/’, ’/home‘
=> [’/’, ’/home’]
’/tmp-eventlog’, ’/’, ’/ubrc’, ’/tmp-config‘
=> [’/’, ’/ubrc’, ’/tmp-config’, ’/tmp-eventlog’]

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 32
32:     def partition_mount_points(partitions)
33:       partitions.keys.sort do |a, b|
34:         if a.count('/') > b.count('/')
35:           v = 1
36:         else
37:           if a.count('/') < b.count('/')
38:             v = -1
39:           else
40:             v = a.length <=> b.length
41:           end
42:         end
43:         v
44:       end
45:     end

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 67
67:     def recreate_kernel_image(guestfs, modules = [])
68:       kernel_version = kernel_version(guestfs)
69:       kernel_image_name = kernel_image_name(guestfs)
70: 
71:       if guestfs.exists("/sbin/dracut") != 0
72:         command = "/sbin/dracut -f -v --add-drivers #{modules.join(' ')}"
73:       else
74:         drivers_argument = ""
75:         modules.each { |mod| drivers_argument << " --preload=#{mod}" }
76: 
77:         command = "/sbin/mkinitrd -f -v#{drivers_argument}"
78:       end
79: 
80:       @log.trace "Additional modules to preload in kernel: #{modules.join(', ')}"
81: 
82:       @log.debug "Recreating kernel image for #{kernel_version} kernel..."
83:       guestfs.sh("#{command} /boot/#{kernel_image_name}-#{kernel_version}.img #{kernel_version}")
84:       @log.debug "Kernel image recreated."
85:     end

[Source]

    # File lib/boxgrinder-build/helpers/linux-helper.rb, line 67
67:     def recreate_kernel_image(guestfs, modules = [])
68:       kernel_version = kernel_version(guestfs)
69:       kernel_image_name = kernel_image_name(guestfs)
70: 
71:       if guestfs.exists("/sbin/dracut") != 0
72:         command = "/sbin/dracut -f -v --add-drivers #{modules.join(' ')}"
73:       else
74:         drivers_argument = ""
75:         modules.each { |mod| drivers_argument << " --preload=#{mod}" }
76: 
77:         command = "/sbin/mkinitrd -f -v#{drivers_argument}"
78:       end
79: 
80:       @log.trace "Additional modules to preload in kernel: #{modules.join(', ')}"
81: 
82:       @log.debug "Recreating kernel image for #{kernel_version} kernel..."
83:       guestfs.sh("#{command} /boot/#{kernel_image_name}-#{kernel_version}.img #{kernel_version}")
84:       @log.debug "Kernel image recreated."
85:     end

[Validate]