My Ubuntu

Softwares

• Chinese

  • fcitx + chewing
  • Ubuntu 22.04: https://jute.pw/linux/fcitx5-with-chewing-on-ubuntu-22-04-lts/
  • Ubuntu 19.04：
    • 選 fctix，把系統的其他輸入法移除，直接用 fctix conf 視窗設定。
    • vscode 要從官網下載安裝、把 ctrl + space 的其他設定移除。 *

• wine wechat/QQ/baidu pan

  • wine
  • wechat

• Graphics

  • nomacs | Image Lounge
  • Krita
  • gnome-paint
  • Pinta

• Chart

  • draw.io
  • Lucid chart
  • Edraw Max

• CAD

  • LibreCAD

• Office

  • WPS Office for Linux
  • Symbol fonts

• VPN

  • OpenFortiGUI

• Remove

sudo apt purge libreoffice* thunderbird*

Ubuntu 22.04

• GPU process isn't usable: The --no-sandbox flag also works with the .rpm version.

HDMI monitor not found!

sudo apt purge *nvidia*
sudo apt autoremove

sudo apt-get install -f

sudo su
for FILE in $(dpkg-divert --list | grep nvidia-340 | awk '{print $3}'); do dpkg-divert --remove $FILE; done
exit

sudo apt-get install -f
sudo apt-get update
sudo apt-get upgrade

sudo ubuntu-drivers autoinstall

'make' -j6 KVER=5.15.0-41-generic KSRC=/lib/modules/5.15.0-41-generic/build....(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8812au: 5.6.4.2 not found
Error! Bad return status for module build on kernel: 5.15.0-41-generic (x86_64)
Consult /var/lib/dkms/rtl8812au/5.6.4.2/build/make.log for more information.

• shutdown
• Power on
• Suggested by:
  • https://askubuntu.com/questions/1246654/ubuntu-20-04-second-monitor-on-hdmi-port-not-detected

Virtual cam

• Virtual camera support
• akvcam, virtual camera for Linux

Virtual cam - v4l2loopback not working on google chrome

apt-get install module-assistant
m-a prepare
m-a update
m-a a-i v4l2loopback
cd /usr/src
dpkg -i v4l2loopback-modules-5.0.0-32-generic_0.12.1-1_amd64.deb

reboot
modinfo videodev
modinfo v4l2loopback

modprobe -r v4l2loopback
modprobe videodev
modprobe v4l2loopback video_nr=1 card_label="Virtual cam" exclusive_caps=1
insmod /lib/modules/5.0.0-29-generic/updates/dkms/v4l2loopback.ko exclusive_caps=1 devices=1 video_nr=2
insmod /usr/lib/modules/5.3.0-24-generic/updates/dkms/v4l2loopback.ko exclusive_caps=1 devices=1 video_nr=2

depmod -a

ffmpeg -loop 1 -re -i /root/girl.jpg -f v4l2 -vcodec rawvideo -pix_fmt yuv420p /dev/video1

Ubuntu Release upgrade

18.04

• php7 conf for apache2

sudo apt install libapache2-mod-php7.2
sudo a2enmod php7.2
sudo systemctl restart apache2

• php7 extensions
  • php7.2-bcmath

16.04

• php7 conf for apache2
• php7 extensions
  • php7.0-curl
  • php7.0-intl
  • php7.0-mbstring
  • php-redis
• php-fpm
• rm /etc/cron.d/php5
• mysql-server
  • purge and install
  • sudo mysql_secure_installation
  • user cannot login root without password
• eclipse purge and re-install

S410

apt

apt-get install libappindicator1 # for chrome
apt-get -f install
apt-get install fail2ban # server
apt-get install git screen vim curl bison
apt-get install apache2 mysql-server php5 php5-curl phpmyadmin
apt-get install redis-server
apt-get install composer
apt-get install npm
apt-get install Mercurial # for go-find-references
apt-get install grc # universal coulouriser
apt-get install ruby # for gem # for grb
apt-get install android android-tools-adb
apt-get install meld

apt install fcitx fcitx-chewing
apt install libjpeg62 # CoR
apt install fcitx-anthy # japanese input

php

curl -sS https://getcomposer.org/installer | php

npm

sudo npm install -g grunt-cli
sudo npm install -g jshint
sudo npm install -g uglifyjs json-minify

G530

• LiLi USB Creator + SY-H61-U3M
• Ubuntu Server 13.10 x86_64 --> USB Mode: Forced FDD
• Ubuntu Server 13.10 i386 --> USB Mode: Auto

Install Ubuntu 14.04 inside Win7

• Boot From Ubuntu USB
• Choose Install Ubuntu in Win7
• Restart in Win7
• Use Wubi (It works now!)

After kernel upgrade

• If it can't boot from the new kernel, edit /boot/grub/grub.cfg to boot from the old kernel by default is a workaround.

apt source

• vim /etc/apt/sources.list

:%s/us.archive.ubuntu.com/free.nchc.org.tw/g

Devices

rtl8812au (TP-Link Archer T2U Plus)

• aircrack-ng rtl8812au repo on GitHub

RK3066 (CHUWI V17HD)

• Download & Install SDK
• Edit udev rules (see step #3), the RK3066 Vendor ID is 2207
• Restart udev (udevadm control --reload-rules)
• Edit $HOME/.android/adb_usb.ini, add 0x2207 at the end of the file
• Restart adb server (adb kill-server && adb start-server)
• Plug & List your device (adb devices)

mt7601u (MI wifi)

http://bbs.xiaomi.cn/t-10260085

• https://github.com/eywalink/mt7601u
• sudo ./miwifi_build.sh
• sudo vim /etc/network/interfaces

auto wlxf0b42931c5e9
iface wlxf0b42931c5e9 inet static
    address 192.168.2.1
    netmask 255.255.255.0

• sudo service networking restart
• sudo apt-get install isc-dhcp-server
• vim /etc/dhcp/dhcpd.conf

subnet 192.168.199.0 netmask 255.255.255.0 {
   range 192.168.199.10 192.168.199.20;
   option routers 192.168.199.1;
   option domain-name-servers 114.114.114.114;
}

• vim /etc/default/isc-dhcp-server

INTERFACES="wlxf0b42931c5e9"

• service isc-dhcp-server restart

• vim /etc/Wireless/RT2870AP/RT2870AP.dat # to change ssid/password

• sudo ./miwifi_work.sh

• ubuntu 15.10 method1: http://www.linuxdiyf.com/linux/15469.html

sudo apt-get install bcmwl-kernel-source

mi3

• Read-only file system

mount -o remount,rw /system