Delete Chroot

• Find the chrootname

        sudo edit-chroot -a

• Delete the chroot

       sudo edit-chroot -d <chrootname>

debug: No running instance of xfce4-panel was found

1. clear the sessions in the cache folder
• rm -r ~/.cache/sessions
• save the sessions and logout
2. alt-F2, run the xfce4-panel, and logout

•  [False]

• (emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

• The Unable to locate theme engine in module_path: "pixmap" messages are a known bug.
  To fix it, install the gtk2-engines-pixbuf package

debug: solve the gibberish on website; cannot display Chinese

• To install Chinese language support, run following commands:

# sudo apt-get install language-pack-zh* 
# sudo apt-get install chinese*

• And finally, you will need to add additional fonts:

# sudo apt-get install fonts-arphic-ukai fonts-arphic-uming fonts-ipafont-mincho
# sudo apt-get install fonts-ipafont-gothic fonts-unfonts-core

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• List all the languages on this device

#locale -a

• List settings on this device

#locale

LANG=
LC_CTYPE="POSIX"
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

LC_CTYPE 這會影響字元的分類和轉換，輸入中文設定
LC_TIME   日期和時間的顯示格式
LC_MONETARY 貨幣單位的符號和表示
LC_MESSAGES 系統訊息的顯示

LANG    這是預設
LC_ALL 這是強制全部使用這裡的設定

• Generate the language file, edit the file 

$ sudo vim /var/lib/locales/supported.d/local

zh_TW.UTF-8 UTF-8
zh_CN.UTF-8 UTF-8
en_US.UTF-8 UTF-8
zh_TW BIG5

 $ sudo locale-gen

•  Setting the User's enviroment

 $ vim ~/.bashrc

•  Setting the Global Variables

$ sudo vim /etc/environment