2017-12-27

[Notes] Chakra Linux on MacBook Pro

Notes of installing Chakra Linux (2017/10) on MacBook Pro (2015-mid)

1. Disk Partition
2. Wifi
3. fn key + F1 ~ 12
4. Input Method (fcitx)
5. Hi-res Display (Hi-DPI / Retina)
6. SSH Agent
7. freedesktop.org standard directories
8. monospace font in Konsole
9. Firefox
10. [TODO] Encrypt Home
11. [FIXME] ctrl alt super (scancode -> keycode conversion)

Disk Partition

My usage senario

Left macOS (currently High Sierra + APFS) minimun required space to upgrade itself.

Defaultly enter Linux when booting.

Enter macOS by press alt key when booting.

Step 1: macOS’s DiskUtility.app

Use macOS to resize APFS partition.

Ensure FileVault has been disabled and decryption is finished. (I doesn’t try to skip this step so I don’t know what will happen if not)

Left default 200MB EFI System Partition (ESP) untouched.

Resize original macOS’ APFS partition until 20GB free space left for system upgrading.

Created a FAT32 partition on all remained unallocated space.

Step 2: Partition within Chakra installation:

Delete the FAT32 partition just created.
Except for ~500MB space lefted unallocated, create & mount your / and /home partition.
Create a ~500MB FAT32 partition, mount to /boot/efi, add flags boot and esp.

My example:

MountPoint  Number  Start   End     Size    File system  Name                  Flags
            1       20.5kB  210MB   210MB   fat32        EFI System Partition  boot, esp
            2       210MB   90.9GB  90.7GB  apfs         Macintosh HD
/home       3       90.9GB  216GB   125GB   ext4
/           4       216GB   250GB   34.0GB  ext4
/boot/efi   5       250GB   251GB   472MB   fat32                              boot, esp

Wifi

MacBook Pro mid-2015 use BCM43602 network card:

$ lspci | grep Network
03:00.0 Network controller: Broadcom Corporation BCM43602 802.11ac Wireless LAN SoC (rev 01)
$ dmesg | grep brcm
$ lsmod | grep brcmfmac

According to Arch Wiki, this card should has been supported by kernel itself (brcmfmac).

I don’t know why it doesn’t enabled out-of-box, but it still can be enabled manually:

modprobe brcmfmac

Auto start after booting

echo brcmfmac > /etc/modules-load.d/brcmfmac.conf

Trouble shooting: Still not works after adding .conf into modules-load.d?
It’s possible that brcmfmac was added into blacklist in modprobe.d.
According to the man page of modprobe.d, modprobe.d is located at:

/lib/modprobe.d/*.conf

/etc/modprobe.d/*.conf

/run/modprobe.d/*.conf

Ensure brcmfmac is not be added into blacklist by any .conf file. (That is to say, if you find blacklist brcmfmac, remove that line.)

Cannot suspend

This is Source

Add to rc.local

#!/bin/sh -e
echo LID0 > /proc/acpi/wakeup
echo XHC1 > /proc/acpi/wakeup
exit 0

`fn` key + `F1 ~ 12`

Test

echo 2 > /sys/module/hid_apple/parameters/fnmode

Permanently:

echo options hid_apple fnmode=2 | sudo tee -a /etc/modprobe.d/hid_apple_fnmode.conf

Reboot, done!

Input Method (fcitx)

https://wiki.chakralinux.org/index.php?title=Fcitx#CTRL.2BSpace_does_not_work

If you cannot invoke fcitx when Ctrl + Space, but fcitx runs in background without problem, please check your locale, and make sure your locale is un-commented in /etc/locale.gen.

If you sure locale is correct, run fcitx-diagnose to see what should added to ~/.xprofile.

Hi-res Display (Hi-DPI / Retina)

KDE system settings

Fonts -> Font
- Leave Font’s DPI untouched (96)
- Adjust all fonts -> Set size to 14.0
- Minimun set to 12.0
  - 96 font DPI seems to be default value. Not recommend to increase font’s DPI for enlarging text, because this make GDK_DPI_SCALE a mess.
Display and Monitor -> Displays
- Click Scale Display, adjust to 1.0
Icon -> Icon
- Detail Options -> customize icon sizes

`~/.xprofile`

# === Qt =========================================
# QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
export QT_AUTO_SCREEN_SCALE_FACTOR=1

# This is disastrous, don't use.
# export QT_SCALE_FACTOR=2

# === GTK =========================================
export GDK_SCALE=1.5
export GDK_DPI_SCALE=1.5
export CLUTTER_SCALE=1.5
export ELM_SCALE=1.5

Adjusting Scale Display to 1.3 will cause Konsole’s display broken.

KDE system settings -> Fonts -> Font

Set Font’s DPI to 148

Display and Monitor -> Displays

Click Scale Display, adjust to 1.3

Icons size on Plasma’s System Tray

Open ~/.config/plasma-org.kde.plasma.desktop-appletsrc, find a section looks like this, a lot of items:

[Containments][8][General]
extraItems=org.kde.plasma.printmanager,org.kde.plasma.devicenotifier,org.kde.kupapplet,org.kde.ktp-contactlist,org.kde.plasma.volume,org.kde.plasma.bluetooth,org.kde.plasma.battery,org.kde.plasma.mediacontroller,org.kde.plasma.networkmanagement,org.kde.plasma.clipboard,org.kde.plasma.notifications,org.kde.kdeconnect
knownItems=org.kde.plasma.printmanager,org.kde.plasma.devicenotifier,org.kde.kupapplet,org.kde.ktp-contactlist,org.kde.plasma.volume,org.kde.plasma.bluetooth,org.kde.plasma.battery,org.kde.plasma.mediacontroller,org.kde.plasma.networkmanagement,org.kde.plasma.clipboard,org.kde.plasma.notifications,org.kde.kdeconnect
(......)

Append one line in this section:

iconSize=2

Give it values from 0 to 5 which correspond to the size Small, SmallMedium, Medium, Large, Huge, Enormous respectively.

Save file, Alt + F2 kquitapp plasmashell;kstart plasmashell to apply.

kquitapp can also be kquitapp5 or killall

SSH Agent

Method 1: `ssh-agent` + `ssh-add` + `ksshaskpass`

Use ssh-agent to cache your SSH passphrase when login into KDE, so you needn’t enter passphrase whenever git push.

Install ksshaskpass
Edit (if not exist, create it) ~/.xprofile (or ~/.xinitrc), add following 3 lines:
```
export SSH_ASKPASS="/usr/bin/ksshaskpass"
eval $(ssh-agent)
```
Add ssh-add into KDE System Setting -> Startup and Shutdown -> Autostart -> Add Program...

I don’t recommend to place ssh-add also into ~/.xprofile, because when you login from SDDM, you cannot use the saved passphrase in (locked) KWallet.

freedesktop.org standard directories

Run xdg-user-dirs-update, then ~/Picture, ~/Movie… generated. See https://wiki.archlinux.org/index.php/XDG_user_directories

`monospace` font in `Konsole`

See my another article configure monospace fonts for terminal

Firefox

Install hunspell and its directories for Firefox’s spell checking

[TODO] Encrypt Home

suspend

SYSTEMD_LOG_LEVEL=debug systemctl status mbp-suspend.service

[FIXME] SD Card Reader

Just buy a USB external SD card reader to solve this shit.

dmesg | grep SD

[    1.084301] scsi 0:0:0:0: Direct-Access     ATA      APPLE SSD SM0256 SA0Q PQ: 0 ANSI: 5
[    1.975499] scsi 1:0:0:0: Direct-Access     APPLE    SD Card Reader   3.00 PQ: 0 ANSI: 6
[12968.934410] scsi 1:0:0:0: Direct-Access     APPLE    SD Card Reader   3.00 PQ: 0 ANSI: 6

[FIXME] ctrl alt super (`scancode` -> `keycode` conversion)

I still not found the solution for this need. I’ve asked and been waiting for answser on StackExchange

See https://wiki.archlinux.org/index.php/Map_scancodes_to_keycodes

Generic input devices (also USB keyboards) identified by the usb kernel modalias:

evdev:input:bBUSIDvVENDORIDpPRODUCTIDeVERSION-MODALIAS

1. Find the vendor id / product id / version of build-in keyboard:

Run less /proc/bus/input/devices and find section like this:

I: Bus=0003 Vendor=05ac Product=0274 Version=0110
N: Name="Apple Inc. Apple Internal Keyboard / Trackpad"
P: Phys=usb-0000:00:14.0-12/input1
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-12/1-12:1.1/0003:05AC:0274.0004/input/input7
U: Uniq=D3H624316K1FTV4A63PS
H: Handlers=sysrq kbd leds event7
B: PROP=0
B: EV=120013
B: KEY=10000 0 0 0 1007b00011007 ff9f217ac14057ff ffbeffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=1f

2. Get scancodes

Run showkey --scancodes in TTY:

	scancode (hex)	keycode
capslock	3a ba	58
———–	—————-	———
fn	– –	464
leftctrl	1d 9d	29
leftalt	38 b8	56
leftmeta	e0 5b e0 db	125
———–	—————-	———
r_control	e0 5c e0 dc	126
r_alt	e0 38 e0 b8	100

3. Create config file in `/etc/udev/hwdb.d/`

/etc/udev/hwdb.d/10-apple-kb.hwdb

evdev:input:b0003v05acp0274e0110*
  KEYBOARD_KEY_3aba=leftctrl
  KEYBOARD_KEY_1d9d=leftctrl
  KEYBOARD_KEY_38b8=leftmeta
  KEYBOARD_KEY_e05be0db=leftalt
  KEYBOARD_KEY_e05ce0dc=rightctrl
  KEYBOARD_KEY_e038e0b8=rightalt

東北角的小徑

跛腳鋼琴、手殘插畫、自由軟體廚的綜合體。

[Notes] Chakra Linux on MacBook Pro

Contents

Disk Partition

My usage senario

Step 1: macOS’s DiskUtility.app

Step 2: Partition within Chakra installation:

Wifi

Auto start after booting

Trouble shooting: Still not works after adding `.conf` into `modules-load.d`?

Cannot suspend

`fn` key + `F1 ~ 12`

Input Method (fcitx)

Hi-res Display (Hi-DPI / Retina)

KDE system settings

`~/.xprofile`

Icons size on Plasma’s System Tray

SSH Agent

Method 1: `ssh-agent` + `ssh-add` + `ksshaskpass`

freedesktop.org standard directories

`monospace` font in `Konsole`

Firefox

[TODO] Encrypt Home

suspend

[FIXME] SD Card Reader

[FIXME] ctrl alt super (`scancode` -> `keycode` conversion)

1. Find the vendor id / product id / version of build-in keyboard:

2. Get scancodes

3. Create config file in `/etc/udev/hwdb.d/`

Contents

Disk Partition

My usage senario

Step 1: macOS’s DiskUtility.app

Step 2: Partition within Chakra installation:

Wifi

Auto start after booting

Trouble shooting: Still not works after adding .conf into modules-load.d?

Cannot suspend

fn key + F1 ~ 12

Input Method (fcitx)

Hi-res Display (Hi-DPI / Retina)

KDE system settings

~/.xprofile

Icons size on Plasma’s System Tray

SSH Agent

Method 1: ssh-agent + ssh-add + ksshaskpass

freedesktop.org standard directories

monospace font in Konsole

Firefox

[TODO] Encrypt Home

suspend

[FIXME] SD Card Reader

[FIXME] ctrl alt super (scancode -> keycode conversion)

1. Find the vendor id / product id / version of build-in keyboard:

2. Get scancodes

3. Create config file in /etc/udev/hwdb.d/

Trouble shooting: Still not works after adding `.conf` into `modules-load.d`?

`fn` key + `F1 ~ 12`

`~/.xprofile`

Method 1: `ssh-agent` + `ssh-add` + `ksshaskpass`

`monospace` font in `Konsole`

[FIXME] ctrl alt super (`scancode` -> `keycode` conversion)

3. Create config file in `/etc/udev/hwdb.d/`