iPod Classicがハイレゾに対応していないことは分かったが，新しいハイレゾプレーヤーは値段が高くて手が出ない。そこでハイレゾ，FLAC再生が出来るRockBoxをインストールすることにした。
ずいぶん昔にはiPod 3GにiPod linuxとか入れていたけどiPod ClassicにはRockBoxのインストーラーが対応してようなので，以前インストールしようとしたときにはインストール出来なかった。
そこでここのガイドに従ってインストールする。
すなわち
libusbをbrewでインストールしておく。
❯ brew install libusb
ソースディレクトリを作ってmks5lbootをビルドする。
❯ sudo mkdir /usr/local/src
❯ cd /usr/local/src
❯ sudo git clone git://git.rockbox.org/rockbox.git
Cloning into 'rockbox'...
remote: Counting objects: 265338, done.
remote: Compressing objects: 100% (283/283), done.
remote: Total 265338 (delta 75), reused 0 (delta 0)
Receiving objects: 100% (265338/265338), 148.40 MiB | 1.82 MiB/s, done.
Resolving deltas: 100% (208255/208255), done.
Checking out files: 100% (9902/9902), done.
❯ cd /usr/local/src/rockbox/rbutil/mks5lboot
❯ sudo make
Compiler creates darwin binaries
CC dualboot.c
CC mkdfu.c
CC ipoddfu.c
CC main.c
AR libmks5lboot.a
LD mks5lboot
ld: warning: text-based stub file /System/Library/Frameworks//IOKit.framework/IOKit.tbd and library file /System/Library/Frameworks//IOKit.framework/IOKit are out of sync. Falling back to library file for linking.
ld: warning: text-based stub file /System/Library/Frameworks//CoreFoundation.framework/CoreFoundation.tbd and library file /System/Library/Frameworks//CoreFoundation.framework/CoreFoundation are out of sync. Falling back to library file for linking.
❯ ./mks5lboot
mks5lboot Version 7a132a257a-181020
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Usage:
mks5lboot --bl-inst <bootloader.ipod> [-p <pid>] [--single]
--bl-uninst <platform> [-p <pid>]
--dfuscan [--loop [<sec>]] [-p <pid>]
--dfusend <infile.dfu> [-p <pid>]
--dfureset [--loop [<sec>]] [-p <pid>]
--mkdfu-inst <bootloader.ipod> <outfile.dfu> [--single]
--mkdfu-uninst <platform> <outfile.dfu>
--mkdfu-raw <filename.bin> <outfile.dfu>
Commands:
--bl-inst Install file <bootloader.ipod> into an iPod device
(same as --mkdfu-inst and --dfusend).
--bl-uninst Remove a bootloader from an iPod device (same as
--mkdfu-uninst and --dfusend).
--dfuscan scan for DFU USB devices and outputs the status.
--dfusend send DFU image <infile.dfu> to the device.
--dfureset reset DFU USB device bus.
--mkdfu-inst Build a DFU image containing an installer for
<bootloader.ipod>, save it as <outfile.dfu>.
--mkdfu-uninst Build a DFU image containing an uninstaler for
<platform> devices, save it as <outfile.dfu>.
--mkdfu-raw Build a DFU image containing raw executable
code, save it ass <outfile.dfu>. <infile.bin>
is the code you want to run, it is loaded at
address 0x2200030c and executed.
<bootloader.ipod> is the rockbox bootloader that you want to
install (previously scrambled with tools/scramble utility).
<platform> is the name of the platform (type of device) for
which the DFU uninstaller will be built. Currently supported
platform names are:
ipod6g: iPod Classic 6G
Options:
-p, --pid <pid> Use a specific <pid> (Product Id) USB device,
if this option is ommited then it uses the
first USB DFU device found.
-l, --loop <sec> Run the command every <sec> seconds, default
period (<sec> ommited) is 1 seconds.
-S, --single Be careful using this option. The bootloader
is installed for single boot, the original
Apple NOR boot is destroyed (if it exists),
and only Rockbox can be used.
iPodがDFUモードになっているかを確認するために
❯ ./mks5lboot --dfuscan -l
mks5lboot Version 7a132a257a-181020
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[0] DFU scan:
[INFO] IOKit: no DFU devices found
[ERR] DFU device not found
[1] DFU scan:
[INFO] IOKit: no DFU devices found
[ERR] DFU device not found
[2] DFU scan:
[INFO] IOKit: no DFU devices found
[ERR] DFU device not found
[3] DFU scan:
[INFO] IOKit: no DFU devices found
[ERR] DFU device not found
[4] DFU scan:
[INFO] IOKit: no DFU devices found
[ERR] DFU device not found
DFUモードのiPodが見つかったなら
[INFO] IOKit: found [05ac:1223] release: 1
[INFO] iPod Nano 3G / Classic, mode: DFU
[INFO] DFU device state: 2
[106] DFU scan:
[INFO] IOKit: found [05ac:1223] release: 1
[INFO] iPod Nano 3G / Classic, mode: DFU
[INFO] DFU device state: 2
[107] DFU scan:
[INFO] IOKit: found [05ac:1223] release: 1
[INFO] iPod Nano 3G / Classic, mode: DFU
[INFO] DFU device state: 2
[108] DFU scan:
[INFO] IOKit: found [05ac:1223] release: 1
[INFO] iPod Nano 3G / Classic, mode: DFU
[INFO] DFU device state: 2
[109] DFU scan:
[INFO] IOKit: found [05ac:1223] release: 1
[INFO] iPod Nano 3G / Classic, mode: DFU
[INFO] DFU device state: 2
[110] DFU scan:
[INFO] IOKit: found [05ac:1223] release: 1
[INFO] iPod Nano 3G / Classic, mode: DFU
[INFO] DFU device state: 2
^Cで抜けてbootloaderをインストールする。
❯ ./mks5lboot --bl-inst --bl-inst bootloader-ipod6g.ipod
mks5lboot Version 7a132a257a-181020
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[INFO] Building DFU:
[INFO] type: BL installer
[INFO] BL size: 102336
[INFO] DFU size: 110480
[INFO] model name: Classic 6G
[INFO] platform: ipod6g
[INFO] RB name: ip6g
[INFO] RB num: 71
[INFO] IOKit: found [05ac:1223] release: 1
[INFO] iPod Nano 3G / Classic, mode: DFU
[INFO] DFU image sent successfully (110480 bytes)
あとはRockBoxをダウンロードして，マウントされているiPod(外部ストレージとして認識)のルートディレクトリでunzipする。
すなわち
❯ unzip rockbox-ipod6g.zip
Archive: rockbox-ipod6g.zip
creating: .rockbox/
inflating: .rockbox/rockbox-info.txt
creating: .rockbox/docs/
inflating: .rockbox/docs/LICENSES.txt
inflating: .rockbox/docs/sample.icons
inflating: .rockbox/docs/COPYING.txt
inflating: .rockbox/docs/sample.colours
inflating: .rockbox/docs/KNOWN_ISSUES.txt
creating: .rockbox/icons/
inflating: .rockbox/icons/viewers.6x8x16.bmp
inflating: .rockbox/icons/tango_icons.16x16.bmp
inflating: .rockbox/icons/tango_icons_viewers.16x16.bmp
creating: .rockbox/codecs/
inflating: .rockbox/codecs/nsf.codec
inflating: .rockbox/codecs/mod.codec
inflating: .rockbox/codecs/kss.codec
inflating: .rockbox/codecs/wav64.codec
inflating: .rockbox/codecs/aiff.codec
inflating: .rockbox/codecs/adx.codec
inflating: .rockbox/codecs/ay.codec
inflating: .rockbox/codecs/a52_rm.codec
inflating: .rockbox/codecs/atrac3_rm.codec
inflating: .rockbox/codecs/aiff_enc.codec
inflating: .rockbox/codecs/vox.codec
inflating: .rockbox/codecs/au.codec
inflating: .rockbox/codecs/wmapro.codec
inflating: .rockbox/codecs/mp3_enc.codec
inflating: .rockbox/codecs/aac.codec
inflating: .rockbox/codecs/wavpack.codec
inflating: .rockbox/codecs/raac.codec
inflating: .rockbox/codecs/ape.codec
inflating: .rockbox/codecs/alac.codec
inflating: .rockbox/codecs/spc.codec
inflating: .rockbox/codecs/wavpack_enc.codec
inflating: .rockbox/codecs/mpa.codec
inflating: .rockbox/codecs/a52.codec
inflating: .rockbox/codecs/sgc.codec
inflating: .rockbox/codecs/wav_enc.codec
inflating: .rockbox/codecs/tta.codec
inflating: .rockbox/codecs/mpc.codec
inflating: .rockbox/codecs/opus.codec
inflating: .rockbox/codecs/wma.codec
inflating: .rockbox/codecs/smaf.codec
inflating: .rockbox/codecs/vorbis.codec
inflating: .rockbox/codecs/asap.codec
inflating: .rockbox/codecs/hes.codec
inflating: .rockbox/codecs/vgm.codec
inflating: .rockbox/codecs/speex.codec
inflating: .rockbox/codecs/wav.codec
inflating: .rockbox/codecs/sid.codec
inflating: .rockbox/codecs/atrac3_oma.codec
inflating: .rockbox/codecs/gbs.codec
inflating: .rockbox/codecs/flac.codec
inflating: .rockbox/codecs/cook.codec
inflating: .rockbox/codecs/shorten.codec
inflating: .rockbox/rockbox.ipod
creating: .rockbox/rocks/
creating: .rockbox/rocks/games/
inflating: .rockbox/rocks/games/sgt-sixteen.rock
inflating: .rockbox/rocks/games/duke3d.rock
inflating: .rockbox/rocks/games/boomshine.lua
inflating: .rockbox/rocks/games/sgt-unequal.rock
inflating: .rockbox/rocks/games/sgt-unruly.rock
inflating: .rockbox/rocks/games/sgt-lightup.rock
inflating: .rockbox/rocks/games/sgt-bridges.rock
inflating: .rockbox/rocks/games/sgt-keen.rock
inflating: .rockbox/rocks/games/doom.rock
inflating: .rockbox/rocks/games/reversi.rock
inflating: .rockbox/rocks/games/sgt-towers.rock
inflating: .rockbox/rocks/games/dice.rock
inflating: .rockbox/rocks/games/clix.rock
inflating: .rockbox/rocks/games/sgt-loopy.rock
inflating: .rockbox/rocks/games/sgt-flood.rock
inflating: .rockbox/rocks/games/sgt-galaxies.rock
inflating: .rockbox/rocks/games/sgt-tents.rock
inflating: .rockbox/rocks/games/sgt-pearl.rock
inflating: .rockbox/rocks/games/sgt-signpost.rock
inflating: .rockbox/rocks/games/sgt-pattern.rock
inflating: .rockbox/rocks/games/superdom.rock
inflating: .rockbox/rocks/games/flipit.rock
inflating: .rockbox/rocks/games/rockblox.rock
inflating: .rockbox/rocks/games/sgt-tracks.rock
inflating: .rockbox/rocks/games/sgt-solo.rock
inflating: .rockbox/rocks/games/sgt-filling.rock
inflating: .rockbox/rocks/games/snake2.rock
inflating: .rockbox/rocks/games/sgt-pegs.rock
inflating: .rockbox/rocks/games/minesweeper.rock
inflating: .rockbox/rocks/games/sgt-fifteen.rock
inflating: .rockbox/rocks/games/sgt-palisade.rock
inflating: .rockbox/rocks/games/sgt-slant.rock
inflating: .rockbox/rocks/games/sgt-rect.rock
inflating: .rockbox/rocks/games/sokoban.levels
inflating: .rockbox/rocks/games/bubbles.rock
inflating: .rockbox/rocks/games/sgt-singles.rock
inflating: .rockbox/rocks/games/codebuster.rock
inflating: .rockbox/rocks/games/xobox.rock
inflating: .rockbox/rocks/games/jewels.rock
inflating: .rockbox/rocks/games/sgt-undead.rock
inflating: .rockbox/rocks/games/sgt-dominosa.rock
inflating: .rockbox/rocks/games/pacbox.rock
inflating: .rockbox/rocks/games/sgt-mines.rock
inflating: .rockbox/rocks/games/sgt-magnets.rock
inflating: .rockbox/rocks/games/sliding_puzzle.rock
inflating: .rockbox/rocks/games/blackjack.rock
inflating: .rockbox/rocks/games/robotfindskitten.rock
inflating: .rockbox/rocks/games/xworld.rock
inflating: .rockbox/rocks/games/mazezam.rock
inflating: .rockbox/rocks/games/spacerocks.rock
inflating: .rockbox/rocks/games/sokoban.rock
inflating: .rockbox/rocks/games/sgt-map.rock
inflating: .rockbox/rocks/games/sgt-inertia.rock
inflating: .rockbox/rocks/games/pegbox.rock
inflating: .rockbox/rocks/games/solitaire.rock
inflating: .rockbox/rocks/games/invadrox.rock
inflating: .rockbox/rocks/games/brickmania.rock
inflating: .rockbox/rocks/games/sgt-net.rock
inflating: .rockbox/rocks/games/sgt-samegame.rock
inflating: .rockbox/rocks/games/sgt-blackbox.rock
inflating: .rockbox/rocks/games/sgt-untangle.rock
inflating: .rockbox/rocks/games/sudoku.rock
inflating: .rockbox/rocks/games/2048.rock
inflating: .rockbox/rocks/games/sgt-twiddle.rock
inflating: .rockbox/rocks/games/chopper.rock
inflating: .rockbox/rocks/games/snake.rock
inflating: .rockbox/rocks/games/pong.rock
inflating: .rockbox/rocks/games/sgt-flip.rock
inflating: .rockbox/rocks/games/maze.rock
inflating: .rockbox/rocks/games/jackpot.rock
inflating: .rockbox/rocks/games/pixel-painter.lua
inflating: .rockbox/rocks/games/duke3d.ovl
inflating: .rockbox/rocks/games/rockblox1d.rock
inflating: .rockbox/rocks/games/sgt-netslide.rock
inflating: .rockbox/rocks/games/sgt-range.rock
inflating: .rockbox/rocks/games/chessbox.rock
inflating: .rockbox/rocks/games/sgt-guess.rock
inflating: .rockbox/rocks/games/goban.rock
inflating: .rockbox/rocks/games/snake2.levels
inflating: .rockbox/rocks/games/sgt-cube.rock
inflating: .rockbox/rocks/games/wormlet.rock
inflating: .rockbox/rocks/games/star.rock
creating: .rockbox/rocks/viewers/
inflating: .rockbox/rocks/viewers/mikmod.rock
inflating: .rockbox/rocks/viewers/wavview.rock
inflating: .rockbox/rocks/viewers/pdbox.rock
creating: .rockbox/rocks/viewers/lua/
inflating: .rockbox/rocks/viewers/lua/buttons.lua
inflating: .rockbox/rocks/viewers/lua/timer.lua
inflating: .rockbox/rocks/viewers/lua/blit.lua
inflating: .rockbox/rocks/viewers/lua/print.lua
inflating: .rockbox/rocks/viewers/lua/color.lua
inflating: .rockbox/rocks/viewers/lua/math_ex.lua
inflating: .rockbox/rocks/viewers/lua/image.lua
inflating: .rockbox/rocks/viewers/lua/draw.lua
inflating: .rockbox/rocks/viewers/lua/actions.lua
inflating: .rockbox/rocks/viewers/lua/lcd.lua
inflating: .rockbox/rocks/viewers/midi.rock
inflating: .rockbox/rocks/viewers/frotz.rock
inflating: .rockbox/rocks/viewers/vbrfix.rock
inflating: .rockbox/rocks/viewers/search.rock
inflating: .rockbox/rocks/viewers/properties.rock
inflating: .rockbox/rocks/viewers/bmp.ovl
inflating: .rockbox/rocks/viewers/theme_remove.rock
inflating: .rockbox/rocks/viewers/credits.rock
inflating: .rockbox/rocks/viewers/mpegplayer.rock
inflating: .rockbox/rocks/viewers/chip8.rock
inflating: .rockbox/rocks/viewers/wav2wv.rock
inflating: .rockbox/rocks/viewers/rockboy.rock
inflating: .rockbox/rocks/viewers/text_viewer.rock
inflating: .rockbox/rocks/viewers/speedread.rock
inflating: .rockbox/rocks/viewers/gif.ovl
inflating: .rockbox/rocks/viewers/png.ovl
inflating: .rockbox/rocks/viewers/shopper.rock
inflating: .rockbox/rocks/viewers/zxbox.rock
inflating: .rockbox/rocks/viewers/mp3_encoder.rock
inflating: .rockbox/rocks/viewers/shortcuts_append.rock
inflating: .rockbox/rocks/viewers/rockbox-fonts.config
inflating: .rockbox/rocks/viewers/ppm.ovl
inflating: .rockbox/rocks/viewers/sort.rock
inflating: .rockbox/rocks/viewers/lua.rock
inflating: .rockbox/rocks/viewers/jpeg.ovl
inflating: .rockbox/rocks/viewers/imageviewer.rock
inflating: .rockbox/rocks/viewers/shortcuts_view.rock
creating: .rockbox/rocks/apps/
inflating: .rockbox/rocks/apps/pitch_detector.rock
inflating: .rockbox/rocks/apps/keybox.rock
inflating: .rockbox/rocks/apps/disktidy.config
inflating: .rockbox/rocks/apps/settings_dumper.rock
inflating: .rockbox/rocks/apps/stopwatch.rock
inflating: .rockbox/rocks/apps/text_editor.rock
inflating: .rockbox/rocks/apps/main_menu_config.rock
inflating: .rockbox/rocks/apps/battery_bench.rock
inflating: .rockbox/rocks/apps/disktidy.rock
inflating: .rockbox/rocks/apps/stats.rock
inflating: .rockbox/rocks/apps/rockpaint.rock
inflating: .rockbox/rocks/apps/random_folder_advance_config.rock
inflating: .rockbox/rocks/apps/otp.rock
inflating: .rockbox/rocks/apps/md5sum.rock
inflating: .rockbox/rocks/apps/periodic_table.rock
inflating: .rockbox/rocks/apps/resistor.rock
inflating: .rockbox/rocks/apps/metronome.rock
inflating: .rockbox/rocks/apps/chessclock.rock
inflating: .rockbox/rocks/apps/lamp.rock
inflating: .rockbox/rocks/apps/dict.rock
inflating: .rockbox/rocks/apps/clock.rock
inflating: .rockbox/rocks/apps/alarmclock.rock
inflating: .rockbox/rocks/apps/lrcplayer.rock
inflating: .rockbox/rocks/apps/remote_control.rock
inflating: .rockbox/rocks/apps/calculator.rock
inflating: .rockbox/rocks/apps/calendar.rock
creating: .rockbox/rocks/demos/
inflating: .rockbox/rocks/demos/cube.rock
inflating: .rockbox/rocks/demos/pictureflow.rock
inflating: .rockbox/rocks/demos/starfield.rock
inflating: .rockbox/rocks/demos/plasma.rock
inflating: .rockbox/rocks/demos/bounce.rock
inflating: .rockbox/rocks/demos/logo.rock
inflating: .rockbox/rocks/demos/demystify.rock
inflating: .rockbox/rocks/demos/vu_meter.rock
inflating: .rockbox/rocks/demos/fireworks.rock
inflating: .rockbox/rocks/demos/rocklife.rock
inflating: .rockbox/rocks/demos/mosaique.rock
inflating: .rockbox/rocks/demos/snow.rock
inflating: .rockbox/rocks/demos/pictureflow_splash.bmp
inflating: .rockbox/rocks/demos/fractals.rock
inflating: .rockbox/rocks/demos/pictureflow_emptyslide.bmp
inflating: .rockbox/rocks/demos/matrix.rock
inflating: .rockbox/rocks/demos/fft.rock
inflating: .rockbox/rocks/demos/fire.rock
inflating: .rockbox/rocks/demos/oscilloscope.rock
creating: .rockbox/themes/
inflating: .rockbox/themes/cabbiev2.cfg
inflating: .rockbox/themes/rockbox_default_icons.cfg
inflating: .rockbox/themes/rockbox_failsafe.cfg
creating: .rockbox/fonts/
inflating: .rockbox/fonts/15-Adobe-Helvetica.fnt
creating: .rockbox/codepages/
inflating: .rockbox/codepages/932.cp
inflating: .rockbox/codepages/936.cp
inflating: .rockbox/codepages/950.cp
inflating: .rockbox/codepages/iso.cp
inflating: .rockbox/codepages/949.cp
inflating: .rockbox/viewers.config
creating: .rockbox/wps/
inflating: .rockbox/wps/classic_statusbar.rsbs
inflating: .rockbox/wps/rockbox_failsafe.wps
inflating: .rockbox/wps/classic_statusbar.sbs
creating: .rockbox/wps/cabbiev2/
inflating: .rockbox/wps/cabbiev2/battery-320x240x16.bmp
inflating: .rockbox/wps/cabbiev2/pb-320x240x16.bmp
inflating: .rockbox/wps/cabbiev2/wpsbackdrop-320x240x16.bmp
inflating: .rockbox/wps/cabbiev2/lock-320x240x16.bmp
inflating: .rockbox/wps/cabbiev2/repeat-320x240x16.bmp
inflating: .rockbox/wps/cabbiev2/playmode-320x240x16.bmp
inflating: .rockbox/wps/cabbiev2/volume-320x240x16.bmp
inflating: .rockbox/wps/cabbiev2/shuffle-320x240x16.bmp
inflating: .rockbox/wps/rockbox_failsafe.fms
creating: .rockbox/wps/classic_statusbar/
inflating: .rockbox/wps/classic_statusbar/access_disk.bmp
inflating: .rockbox/wps/classic_statusbar/batter-y.bmp
inflating: .rockbox/wps/classic_statusbar/rec_encoders.bmp
inflating: .rockbox/wps/classic_statusbar/status.bmp
inflating: .rockbox/wps/classic_statusbar/rec_frequencies.bmp
inflating: .rockbox/wps/classic_statusbar/rec_mpegbitrates.bmp
inflating: .rockbox/wps/classic_statusbar/rec_channels.bmp
inflating: .rockbox/wps/classic_statusbar/volume.bmp
inflating: .rockbox/wps/classic_statusbar/battery.bmp
inflating: .rockbox/wps/classic_statusbar/access_flash.bmp
inflating: .rockbox/wps/cabbiev2.wps
inflating: .rockbox/wps/rockbox_failsafe.sbs
creating: .rockbox/eqs/
inflating: .rockbox/tagnavi.config
creating: .rockbox/recpresets/
extracting: .rockbox/database.ignore
creating: .rockbox/backdrops/
inflating: .rockbox/backdrops/cabbiev2.bmp
creating: .rockbox/langs/
inflating: .rockbox/langs/italiano.lng
inflating: .rockbox/langs/svenska.lng
inflating: .rockbox/langs/arabic.lng
inflating: .rockbox/langs/basque.lng
inflating: .rockbox/langs/lietuviu.lng
inflating: .rockbox/langs/deutsch.lng
inflating: .rockbox/langs/norsk.lng
inflating: .rockbox/langs/eesti.lng
inflating: .rockbox/langs/latviesu.lng
inflating: .rockbox/langs/slovenscina.lng
inflating: .rockbox/langs/portugues.lng
inflating: .rockbox/langs/slovak.lng
inflating: .rockbox/langs/srpski.lng
inflating: .rockbox/langs/espanol.lng
inflating: .rockbox/langs/bulgarian.lng
inflating: .rockbox/langs/chinese-simp.lng
inflating: .rockbox/langs/afrikaans.lng
inflating: .rockbox/langs/hindi.lng
inflating: .rockbox/langs/magyar.lng
inflating: .rockbox/langs/esperanto.lng
inflating: .rockbox/langs/korean.lng
inflating: .rockbox/langs/catala.lng
inflating: .rockbox/langs/czech.lng
inflating: .rockbox/langs/portugues-brasileiro.lng
inflating: .rockbox/langs/hebrew.lng
inflating: .rockbox/langs/ukrainian.lng
inflating: .rockbox/langs/romaneste.lng
inflating: .rockbox/langs/greek.lng
inflating: .rockbox/langs/polski.lng
inflating: .rockbox/langs/finnish.lng
inflating: .rockbox/langs/tagalog.lng
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inflating: .rockbox/langs/dansk.lng
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inflating: .rockbox/langs/english-us.lng
inflating: .rockbox/langs/english.lng
inflating: .rockbox/langs/galego.lng
inflating: .rockbox/langs/norsk-nynorsk.lng
inflating: .rockbox/langs/wallisertitsch.lng
inflating: .rockbox/langs/turkce.lng
inflating: .rockbox/langs/japanese.lng
inflating: .rockbox/langs/russian.lng
不可視ディレクトリが出来るので注意
❯ ls -a
. .DS_Store rockbox-ipod6g.zip
.. .rockbox
あとはフォントが小さいのと2バイト文字を表示できないので日本語フォントをダウンロードしてiPodの.rockbox/fonts/に入れる。
あと純正のファームウエアとのデュアルブートには対応していないようだWindowsで復元したらDualbootが可能。
RockBoxインストール後にiTunesで復元するとRockBoxのファームウエアが消えてしまう。
ハイレゾ音源なんてオカルトだと思っていたがイヤホンを変えて聴いてみるとmp3の情報量の少なさに気づく。そしてFLAC音源持ってないよ…