OpenWrt running on Atheros AR9331 of Arduino Yun, LLC edition OpenWrt-Yun also Linino, is in obsolete (and has security issues) at kernel and various packages. I will try to investigate the upgrade to the latest version of OpenWrt. (With Absolutely NO Warranty)

Prepare for the Security update of OpenWrt-Yun, Arduino Yun Operating System (YunOS). In the IoT ERA, I think it is a very important thing.

OpenWrt-Yun Chaos Calmer 15.05

RedSnake64's implementation found at Arduino Yun forum.

RedSnake64 edition OpenWrt-Yun:

https://github.com/RedSnake64/openwrt-yun/tree/15.05
ChaosCalmer_v1.3

I tried it. 'mDNS' is not active, so I could not be accessed in '.local'.

opkg install avahi-daemon-service-http

Grasp that implementation. I decided to make Arduino Yun package that can be used in OpenWrt trunk Bleeding Edge.

Investigate the Yun Profile of Origin OpenWrt

The OpenWrt Project, already there is a Arduino Yun Profile.

target/linux/ar71xx/generic/profiles/arduino.mk
ar71xx: add Arduino Yun

https://github.com/openwrt/packages/tree/master/utils/yunbridge
yunbridge

Arduino Yun bridge library has been implimented.

OpenWrt snapshot images:

https://downloads.openwrt.org/snapshots/trunk/ar71xx/generic/
https://downloads.openwrt.org/snapshots/trunk/ar71xx/generic/packages/
openwrt-ar71xx-generic-yun-16M-squashfs-sysupgrade.bin

This System Image is corresponding Arduino Yun Hardware. but, of course Arduino Yun own software is not implemented.

Mirror site: http://ftp.stw-bonn.de/pub/openwrt/snapshots/trunk/ar71xx/generic/

OpenWrt Core:

git.openwrt.org Git - openwrt trunk tree
shortlog

OpenWrt Packages:

https://github.com/openwrt/packages
https://github.com/openwrt/luci
https://github.com/openwrt-routing/packages
https://github.com/openwrt/telephony
https://github.com/openwrt/targets
https://github.com/openwrt-management/packages

Optional package of OpenWrt Project is managed on github.

Where to get packages OpenWrt Wiki

As reference linino:

https://github.com/linino/linino_distro/tree/lininoIO

Investigate the OpenWrt-Yun

OpenWrt-Yun arduino packages

LLC edition arduino package:

https://github.com/arduino/openwrt-packages-yun/tree/master/arduino

RedSnake64 edition arduino package:

https://github.com/RedSnake64/openwrt-arduino-packages/tree/for-15.05

Arduino OpenWrt Yún packages:

(y) avrdude *
(y) cpu-mcu-bridge *
(m) cwiid *
(y) luci-app-arduino-webpanel
(m) node *
(m) node-bleno
(m) node-noble
(m) node-serialport *
(m) node-socket.io
(m) node-socket.io-legacy *
(m) node-socket.io-client
(m) node-socket.io-client-legacy *
(m) node-sqlite3
(m) node-ws
(y) rng-tools *
(y) spacebrew
(y) temboo
(y) uSDaemon
(m) v8m-rb
(y) yun-conf
(y) yun-scripts

avrdude: use a OpenWrt package. if that is configured for Yun. avrdude.conf may arranged in ./files/etc/avrdude.conf.
cpu-mcu-bridge: overlaps with OpenWrt yunbridge package. For compatibility use a Arduino package.
cwiid: only RedSnake64 edition. cwiid is Nintendo Wii remote interface package, so should delete.
node: use a OpenWrt package.
node-serialport: use a OpenWrt package.
"-legacy" mean that the 0.9.x version.
rng-tools: OpenWrt package has a problem. Should be changed START=98 to START=48.

My new arduino package here:

https://github.com/nxhack/openwrt-arduino-packages

OpenWrt-Yun build memo

LLC edition OpenWrt-Yun:

git clone --depth=1 --branch master --single-branch https://github.com/arduino/openwrt-yun.git

RedSnake64 edition OpenWrt-Yun:

git clone --depth=1 --branch 15.05 --single-branch https://github.com/RedSnake64/openwrt-yun.git

In reference to the LLC edition and RedSnake64 edition, to enable build the upstream of trunk / Bleeding Edge.

Origin OpenWrt:

git clone --depth=1 --branch master --single-branch https://github.com/openwrt/openwrt.git

Preparation for cross-compiling environment in Ubuntu 14.04.

apt-get update
apt-get install -y git subversion build-essential asciidoc \
	fastjar flex gawk libgtk2.0-dev intltool zlib1g-dev \
	genisoimage libncurses5-dev libssl-dev ruby sdcc unzip \
	bison libboost-dev libxml-parser-perl libusb-dev bin86 \
	bcc sharutils openjdk-7-jdk mercurial cvs bzr \
	nodejs-legacy curl g++-multilib squashfs-tools

It also puts squashfs-tools for the validation of the build Image. (unsquashfs openwrt-ar71xx-generic-yun-16M-squashfs-sysupgrade.bin)

Installing Node.js via package manager | Node.js

Do not use the Ubuntu nodejs, npm packages.

./feeds.conf:

src-git packages https://github.com/openwrt/packages.git
src-git luci https://github.com/openwrt/luci.git
src-git routing https://github.com/openwrt-routing/packages.git
src-git telephony https://github.com/openwrt/telephony.git
src-git management https://github.com/openwrt-management/packages.git
src-git targets https://github.com/openwrt/targets.git                                                                      
#src-git oldpackages http://git.openwrt.org/packages.git                                                                      
#src-svn xwrt http://x-wrt.googlecode.com/svn/trunk/package                                                                   
#src-svn phone svn://svn.openwrt.org/openwrt/feeds/phone                                                                      
#src-svn efl svn://svn.openwrt.org/openwrt/feeds/efl                                                                          
#src-svn xorg svn://svn.openwrt.org/openwrt/feeds/xorg                                                                        
#src-svn desktop svn://svn.openwrt.org/openwrt/feeds/desktop                                                                  
#src-svn xfce svn://svn.openwrt.org/openwrt/feeds/xfce                                                                        
#src-svn lxde svn://svn.openwrt.org/openwrt/feeds/lxde                                                                        
#src-link custom /usr/src/openwrt/custom-feed                                                                                 
#src-git arduino https://github.com/RedSnake64/openwrt-arduino-packages.git;for-15.05
src-git arduino https://github.com/nxhack/openwrt-arduino-packages.git;for-trunk

./build.sh:

#!/bin/bash -ex

#FEEDS
./scripts/feeds uninstall -a
rm -rf feeds
./scripts/feeds update -a
./scripts/feeds install -a

#PATCH SOME PACKAGES
sed -i -e s/^START=98/START=48/ ./feeds/packages/utils/rng-tools/files/rngd.init

#COPY CONFIG FILE
mv .config .config.$$
cp openwrt-yun-minimum.config .config

make oldconfig
make

Note: Various OpenWrt packages are broken.

Important concept of OpenWrt

The Minimized (smaller footprint) is Highest Priority. This is the large difference in policy between PC GNU/Linux and OpenWrt.

Trunk Bleeding Edge version of OpenWrt-Yun package and build environment

https://git.openwrt.org/?p=openwrt.git
https://github.com/nxhack/openwrt-yun-build-extra
https://github.com/nxhack/openwrt-arduino-packages

Setup Repos:

mkdir Build_Path_Some_Where
cd Build_Path_Some_Where
git clone --depth=1 https://git.openwrt.org/openwrt.git
git clone --depth=1 --branch master --single-branch https://github.com/nxhack/openwrt-yun-build-extra.git
cd openwrt
ln -s ../openwrt-yun-build-extra/* .

Please modify ./files/etc/opkg/distfeeds.conf

First Time, Setup cross compile build environment (ubuntu 14.04):

./FIRST_SETUP_ubuntu_Trusty_Tahr.sh

Build:

./build.sh

Essential items in the kernel configuration

CONFIG_TARGET_ar71xx=y
CONFIG_TARGET_ar71xx_generic=y
CONFIG_TARGET_ar71xx_generic_Yun=y

CONFIG_IMAGEOPT=y
# CONFIG_PREINITOPT is not set
CONFIG_TARGET_PREINIT_SUPPRESS_STDERR=y
CONFIG_TARGET_PREINIT_TIMEOUT=2
# CONFIG_TARGET_PREINIT_SHOW_NETMSG is not set
# CONFIG_TARGET_PREINIT_SUPPRESS_FAILSAFE_NETMSG is not set
CONFIG_TARGET_PREINIT_IFNAME=""
CONFIG_TARGET_PREINIT_IP="192.168.1.1"
CONFIG_TARGET_PREINIT_NETMASK="255.255.255.0"
CONFIG_TARGET_PREINIT_BROADCAST="192.168.1.255"
# CONFIG_INITOPT is not set
CONFIG_TARGET_INIT_PATH="/usr/sbin:/usr/bin:/sbin:/bin"
CONFIG_TARGET_INIT_ENV=""
CONFIG_TARGET_INIT_CMD="/sbin/init"
CONFIG_TARGET_INIT_SUPPRESS_STDERR=y
CONFIG_VERSIONOPT=y
CONFIG_VERSION_DIST="OpenWrt"
CONFIG_VERSION_NICK="Bleeding Edge"
CONFIG_VERSION_NUMBER=""
CONFIG_VERSION_REPO="http://downloads.openwrt.org/snapshots/trunk/%S/packages"
CONFIG_VERSION_MANUFACTURER="Arduino"
CONFIG_VERSION_MANUFACTURER_URL=""
CONFIG_VERSION_PRODUCT="Arduino Yun"
CONFIG_VERSION_HWREV="1.0"
# CONFIG_VERSION_FILENAMES is not set

CONFIG_PER_FEED_REPO=y
CONFIG_PER_FEED_REPO_ADD_DISABLED=y
CONFIG_PER_FEED_REPO_ADD_COMMENTED=y
CONFIG_FEED_packages=y
CONFIG_FEED_luci=y
CONFIG_FEED_routing=y
CONFIG_FEED_telephony=y
CONFIG_FEED_management=y
CONFIG_FEED_targets=y
CONFIG_FEED_arduino=y
# CONFIG_SMIMEOPT is not set
CONFIG_OPKGSMIME_PASSPHRASE=y

CONFIG_DEFAULT_base-files=y
CONFIG_DEFAULT_busybox=y
CONFIG_DEFAULT_dnsmasq=y
CONFIG_DEFAULT_dropbear=y
CONFIG_DEFAULT_firewall=y
CONFIG_DEFAULT_fstools=y
CONFIG_DEFAULT_ip6tables=y
CONFIG_DEFAULT_iptables=y
CONFIG_DEFAULT_iwinfo=y
CONFIG_DEFAULT_kmod-ath9k=y
CONFIG_DEFAULT_kmod-gpio-button-hotplug=y
CONFIG_DEFAULT_kmod-usb-core=y
CONFIG_DEFAULT_kmod-usb2=y
CONFIG_DEFAULT_libc=y
CONFIG_DEFAULT_libgcc=y
CONFIG_DEFAULT_mtd=y
CONFIG_DEFAULT_netifd=y
CONFIG_DEFAULT_odhcp6c=y
CONFIG_DEFAULT_odhcpd=y
CONFIG_DEFAULT_opkg=y
CONFIG_DEFAULT_ppp=y
CONFIG_DEFAULT_ppp-mod-pppoe=y
CONFIG_DEFAULT_swconfig=y
CONFIG_DEFAULT_uboot-envtools=y
CONFIG_DEFAULT_uci=y
CONFIG_DEFAULT_uclient-fetch=y
CONFIG_DEFAULT_wpad-mini=y

CONFIG_PACKAGE_python-base=y
CONFIG_PACKAGE_python-light=y

CONFIG_PACKAGE_avrdude=y
CONFIG_PACKAGE_cpu-mcu-bridge=y
CONFIG_PACKAGE_luci-app-arduino-webpanel=y
CONFIG_PACKAGE_node=m
CONFIG_PACKAGE_node-bleno=m
CONFIG_PACKAGE_node-noble=m
# CONFIG_PACKAGE_node-serialport is not set
CONFIG_PACKAGE_node-socket.io=m
CONFIG_PACKAGE_node-socket.io-client=m
CONFIG_PACKAGE_node-socket.io-client-legacy=m
CONFIG_PACKAGE_node-socket.io-legacy=m
CONFIG_PACKAGE_node-sqlite3=m
CONFIG_PACKAGE_node-ws=m
CONFIG_PACKAGE_rng-tools=y
CONFIG_PACKAGE_spacebrew=y
CONFIG_PACKAGE_temboo=y
CONFIG_PACKAGE_uSDaemon=y
CONFIG_PACKAGE_v8m-rb=m
CONFIG_PACKAGE_yun-conf=y
CONFIG_PACKAGE_yun-scripts=y

CONFIG_PACKAGE_luci=y
CONFIG_PACKAGE_luci-base=y
CONFIG_LUCI_LANG_en=y
CONFIG_PACKAGE_luci-mod-admin-full=y
CONFIG_PACKAGE_luci-app-arduino-webpanel=y
CONFIG_PACKAGE_luci-app-firewall=y
CONFIG_PACKAGE_luci-theme-bootstrap=y
CONFIG_PACKAGE_luci-theme-openwrt=y
CONFIG_PACKAGE_luci-proto-ipv6=y
CONFIG_PACKAGE_luci-proto-ppp=y
CONFIG_PACKAGE_luci-lib-ip=y
CONFIG_PACKAGE_luci-lib-json=y
CONFIG_PACKAGE_luci-lib-jsonc=y
CONFIG_PACKAGE_luci-lib-nixio=y
CONFIG_PACKAGE_luci-i18n-base-en=y
CONFIG_PACKAGE_luci-i18n-firewall-en=y

CONFIG_PACKAGE_kmod-nls-base=y
CONFIG_PACKAGE_kmod-nls-cp437=y
CONFIG_PACKAGE_kmod-nls-iso8859-1=y
CONFIG_PACKAGE_kmod-nls-utf8=y

# CONFIG_PACKAGE_triggerhappy is not set
CONFIG_PACKAGE_kmod-gpio-button-hotplug=y
CONFIG_PACKAGE_kmod-input-core=m
CONFIG_PACKAGE_kmod-input-evdev=m
CONFIG_PACKAGE_kmod-input-gpio-encoder=m
CONFIG_PACKAGE_kmod-input-gpio-keys=m
CONFIG_PACKAGE_kmod-input-gpio-keys-polled=m
CONFIG_PACKAGE_kmod-input-joydev=m
CONFIG_PACKAGE_kmod-input-matrixkmap=m
CONFIG_PACKAGE_kmod-input-polldev=m
CONFIG_PACKAGE_kmod-input-uinput=m

# CONFIG_PACKAGE_odhcp6c is not set
# CONFIG_PACKAGE_odhcpd is not set
# CONFIG_PACKAGE_dnsmasq is not set                                                                                           
CONFIG_PACKAGE_dnsmasq-dhcpv6=y

# CONFIG_PACKAGE_libavahi-client is not set                                                                                   
# CONFIG_PACKAGE_libavahi-compat-libdnssd is not set                                                                          
# CONFIG_PACKAGE_libavahi-dbus-support is not set                                                                             
CONFIG_PACKAGE_libavahi-nodbus-support=y

# CONFIG_PACKAGE_avahi-autoipd is not set                                                                                     
CONFIG_PACKAGE_avahi-daemon-service-http=y
# CONFIG_PACKAGE_avahi-daemon-service-ssh is not set                                                                          
# CONFIG_PACKAGE_avahi-dbus-daemon is not set                                                                                 
CONFIG_PACKAGE_avahi-dnsconfd=y
CONFIG_PACKAGE_avahi-nodbus-daemon=y

CONFIG_PACKAGE_gnupg=y
CONFIG_PACKAGE_libgpg-error=y

CONFIG_PACKAGE_nano=y
CONFIG_PACKAGE_curl=y
CONFIG_PACKAGE_wget=y

Difference between the LLC edition

led の デバイス名が 変更になった。純正に合わせる。
arduino:blue:wlan  arduino:white:usb
target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
https://github.com/nxhack/openwrt-arduino-packages/commit/eb7130ac331ce491765f27372d987d9d7415f6c0

rng-tools は純正版ではだめ LLC 版の init script に合わせる。
S98rngd -> S48rngd
START=98 -> START=48
START=98 から START=48 にしないと Yun独自の起動スクリプト S49generate_new_gpg_key で不具合がでる。これより前に rngd を起動する必要がある。
package build の前に rngd.init を変更する。

 sed -i -e s/^START=98/START=48/ ./feeds/packages/utils/rng-tools/files/rngd.init

BUSYBOX ASH BANNER の日付がなぜか出ない。
表示しないように変更されていた。
https://git.openwrt.org/?p=openwrt.git;a=commit;h=39fabb5068e95ab9c0901dd4f37129111d88ae00

+# don't create a version string containing the actual timestamp
+export KCONFIG_NOTIMESTAMP=1
+

BUSYBOX ASH HELP のバナーが出ない。
CONFIG_ASH_HELP がデフォルトが n に変更されていた。

https://github.com/openwrt/openwrt/blob/master/package/utils/busybox/Config-defaults.in

AR9331 を AVR ライタにするために /etc/avrdude.conf に設定追加する。

programmer
  id    = "linuxgpio";
  desc  = "Use the Linux sysfs interface to bitbang GPIO lines";
  type  = "linuxgpio";
  reset = ~18;
  sck   = 11;
  mosi  = 27;
  miso  = 8;
;

BUSYBOX で telnet が有効になっていない。
ポリシーなので arduino yun bridge Console につなぐには
stty -icanon -echo; nc localhost 6571
さらに BUSYBOX で stty が有効になっていない。
opkg install coreutils-stty

PATH が変わった
LLC バージョン CONFIG_TARGET_INIT_PATH="/bin:/sbin:/usr/bin:/usr/sbin"
システムの規定値 CONFIG_TARGET_INIT_PATH="/usr/sbin:/usr/bin:/sbin:/bin"
システム全体にかかわるので、検証は新しい規定値で行うことにする。

uhttpd で option redirect_https '1'　にする。昨今はこれでないとダメ。

uhttpd 本体の alias サポートを使う。alias patch は当てない。

/etc/config/uhttpd に追加。

	list alias '/arduino=/cgi-bin/luci'
	list alias '/data=/cgi-bin/luci'
	list alias '/mailbox=/cgi-bin/luci'

procd button の仕組みがあるので triggerhappy は不要。
(triggerhappy は HID button をトリガーにするので kmod-input-* が必要)
(kmod-gpio-button-hotplug + procd buttons のほうがもちろんサイズが小さい)
本家に ath79_register_gpio_keys_polled が無いので PR した。
https://git.openwrt.org/?p=openwrt.git;a=commit;h=10ae130265302c717b1580514ada28d9a48a2484

/etc/hotplug.d/button/00-button を設定

/etc/config/system に button section 追加。

config button
        option button 'wps'
        option action 'pressed'
        option handler '/usr/bin/wifi-reset-button-pressed'

config button
        option button 'wps'
        option action 'released'
        option handler '/usr/bin/wifi-reset-button-released'

TO DO

uboot-linino コンパイルエラーとる
extern inline -> static inline, extern __inline__ -> static inline
ブートローダの書き換え失敗したら完全に文鎮になるので検証はこわくてできない。
DISTRIB_TAINTS 意味調査
./include/version.mk 確認する。OpenWrt snapshot では、最終的に DISTRIB_TAINTS="" である。
BUSYBOX 差異
デフォルトが微妙にちがう。OpenWrt 本家を基本にするにはデフォルトは変更しない方針にする。

telnet が無い。stty が無い。

気持ち悪いのが CROND_DIR="/var/spool/cron" から CROND_DIR="/etc" になっている事。動いてから考えよう。
ちゃんと /etc/crontabs -> /var/spool/cron/crontabs のシンボリックリンクがはられていた。

SD card の automount 方法調査する。(uSDaemon がいまいちすぎるので)

OpenWrt (e)udev まだ試していないが。

/etc/udev/rules.d/11-sd-cards-auto-mount.rules

KERNEL!="sda[0-9]", GOTO="sd_cards_auto_mount_end"
# Global mount options
ACTION=="add", ENV{mount_options}="relatime"
# Filesystem specific options
ACTION=="add", IMPORT{program}="/sbin/blkid -o udev -p %N"
ACTION=="add", ENV{ID_FS_TYPE}=="vfat|ntfs", ENV{mount_options}="$env{mount_options},utf8,gid=100,umask=002"
ACTION=="add", RUN+="/bin/mkdir -p /mnt/%k", RUN+="/bin/mount -o $env{mount_options} /dev/%k /media/%k"
ACTION=="remove", RUN+="/bin/umount -l /mnt/%k", RUN+="/bin/rmdir /mnt/%k"
# exit
LABEL="sd_cards_auto_mount_end"

udevadm control --reload-rules

なるほど、(e)udev を使わないのはサイズの問題だね。system image はできるだけ小さくするのが最優先になっている。なのでこの実装はしない。

opkg packages
procps -> procps-ng procps-ng-ps procps-ng-w procps-ng-top
CPU Usage がバグってる様子...

logrotate がないので作った。

python-pip があった
local build packages の BUILD_KEY (Local build key)
/etc/opkg/keys/ にストアされる。
まちがって $(TOPDIR)/key-build と $(TOPDIR)/key-build.pub を消して再生成してしまったら、その環境で作った opkg パッケージを、System Image に組み込まれ(build-in)てる opkg と入れ替える。

$(CP) $(BUILD_KEY).pub $(1)/etc/opkg/keys/`$(STAGING_DIR_HOST)/bin/usign -F -p $(BUILD_KEY).pub`
fstools, block-mount, fstab
https://wiki.openwrt.org/doc/uci/fstab
```
Sun Mar  6 19:54:35 2016 user.notice : this file has been obsoleted. please call "/sbin/block mount" directly
Sun Mar  6 19:54:36 2016 daemon.err block: /dev/sda2 is already mounted
```
block-mount は /etc/config/fstab に automount って書けば boot 時によしなに mount するようだ。hotplug 的な挙動はまだこれからっぽい。

block info and DISK_MEDIA_CHANGE events
メディア挿入後 /sbin/block mount ってやればよいのだが、とりあえず今は uSDaemon は有効にする。

extroot

https://wiki.openwrt.org/doc/howto/extroot

この作業を前提でパーティションとフォーマット済みのメディアがあるとして、

cd /mnt/sda2
rm -rf *
rm -rf .??*
cd /
tar -C /overlay -cvf - . | tar -C /mnt/sda2 -xf -
block detect > /etc/config/fstab ; vi /etc/config/fstab
# edit /etc/config/fstab : Set all enabled '0' → enabled '1'
#      option target '/mnt/sda2' ->  option target '/overlay'
reboot

戻す場合は、poweroff して SD card を取り出し 'YUN RST' を押し再起動。その後 /etc/config/fstab を修正。

config global 'automount'
	option from_fstab '1'
	option anon_mount '1'

/etc/opkg.conf と /etc/opkg/distfeeds.conf の切り分けを調査する。
なんか変なメッセージがでたので根元の　distfeeds.conf を書き換えたのだが、opkg.conf をユーザが書き換えるのが本筋。調査する。
opkg_conf_parse_file: Duplicate src declaration
https://wiki.openwrt.org/doc/techref/opkg

https://wiki.openwrt.org/doc/packages

仕様がまだ定まってないようだ。
OOM
(もちろん extroot 環境で)

beaver とかうごかすと OOM が発生する。
メモリー減らすために、いらないモジュールがあるか再調査する。
IPv6 support はさすがにこのご時世外せない。

odhcpd はなくても大丈夫だった。そのかわりdnsmasq を dnsmasq-dhcpv6 に置き換える。

dbus はなくても大丈夫だった。avahi を nodbus で。
```
echo -1000 > /proc/`cat /var/run/dropbear.1.pid`/oom_score_adj
sysctl -w vm.swappiness=0
sysctl -w kernel.panic_on_oops=1
sysctl -w kernel.panic=3
```
opkg でも Out of memory のエラー
/etc/opkg/distfeeds.conf で本当に必要なレポジトリのみにする。

/etc/opkg.conf の lists_dir ext /var/opkg-lists を tmpfs 以外の場所にする ex. lists_dir ext /usr/local/var/opkg-lists

/etc/opkg.conf に option force_space を追加する
```
lists_dir ext /usr/local/var/opkg-lists
option force_space
```
tmpfs
beaver のインストール時に OOM がでるのはひょっとして tmpfs の /tmp が足りないのかもしれない。調査する。

memo

uci

uci delete fstab.@mount[0]
uci delete fstab.@mount[0]
uci commit

uci set fstab.automount=global
uci set fstab.automount.from_fstab='1'
uci set fstab.automount.anon_mount='1'
uci commit

opkg

opkg update
opkg list-upgradable
opkg install ca-certificates
opkg install unzip
opkg install screen
opkg install procps-ng procps-ng-ps procps-ng-w procps-ng-vmstat procps-ng-watch
opkg install procps-ng-top --force-overwrite
opkg install coreutils-ls coreutils-stty
opkg install dropbearconvert
opkg install dosfsck
opkg install diffutils
opkg install logrotate
opkg install mg

procps-ng has bug, CPU usage fail.

mkdir -p -m 1777 /usr/local/var/tmp
export TMPDIR=/usr/local/var/tmp
opkg install python-pip
# pip install --upgrade pip
pip install beaver==36.1.0
pip install supervisor
opkg install openssh-client --force-overwrite

Bricked

My Yún doesn't boot anymore! How can I restore it?

YunSerialTerminal をロードしてシリアルコンソールを有効にする。SDカードは抜いておく事。YUN RST ボタンをおす。

YunSerialTerminal で prompt が出て OS の操作ができる場合。
1. なんとかして network を生かす。
  ifconfig インターフェース IPアドレス route add default gw どこか
  /etc/resolv.conf を編集。
2. SD card で正常な sysupgrade のイメージをもってくる。
  mkdir /mnt/sda1 mount -t vfat /dev/sda1 /mnt/sda1
YunSerialTerminal で u-boot を操作できる場合。
1. https://www.arduino.cc/en/Tutorial/YunUBootReflash

OpenWrt for Arduino Yun cheat sheet

Contents

OpenWrt-Yun Chaos Calmer 15.05

Investigate the Yun Profile of Origin OpenWrt

Investigate the OpenWrt-Yun

OpenWrt-Yun arduino packages

OpenWrt-Yun build memo

Important concept of OpenWrt

Trunk Bleeding Edge version of OpenWrt-Yun package and build environment

Essential items in the kernel configuration

Difference between the LLC edition

TO DO

memo

uci

opkg

Bricked

Navigation menu

OpenWrt for Arduino Yun cheat sheet

OpenWrt-Yun Chaos Calmer 15.05

Investigate the Yun Profile of Origin OpenWrt

Investigate the OpenWrt-Yun

OpenWrt-Yun arduino packages

OpenWrt-Yun build memo

Important concept of OpenWrt

Trunk Bleeding Edge version of OpenWrt-Yun package and build environment

Essential items in the kernel configuration

Difference between the LLC edition

TO DO

memo

uci

opkg

Bricked

Navigation menu

Search