Upgrade Bash on Ubuntu from 14.04 to 16.04

过程

1

sudo -S apt-mark hold sudo
sudo -S apt-mark hold procps
sudo -S apt-mark hold strace

2

sudo do-release-upgrade -f DistUpgradeViewNonInteractive -d

3

$ su
$ dpkg --configure -a

Ubuntu默认没有设置root密码,需要手动设置

sudo passwd

4

$ lsb_release -a
$ uname -a
$ cat /etc/issue

5

apt-get update && apt-get upgrade && apt-get dist-upgrade && apt-get autoremove

ERROR

① 如果第一步未实行，有可能第三步报错

sudo: no tty present and no askpass program specified

解决方案是重新下载安装报错的程序

sudo -S wget http://mirrors.kernel.org/ubuntu/pool/main/s/sudo/sudo_1.8.9p5-1ubuntu1.3_amd64
sudo -S wget http://mirrors.kernel.org/ubuntu/pool/main/p/procps/procps_3.3.9-1ubuntu2.2_amd64.deb
sudo -S wget http://mirrors.kernel.org/ubuntu/pool/main/s/strace/strace_4.8-1ubuntu5_amd64.deb
sudo -S dpkg -i sudo_1.8.9p5-1ubuntu1.3_amd64
sudo -S dpkg -i procps_3.3.9-1ubuntu2.2_amd64.deb
sudo -S dpkg -i strace_4.8-1ubuntu5_amd64.deb

如果procps安装报错，则先使用以下命令修复，再安装

sudo apt -f install

② 升级后总提示一下信息

N: Ignoring file '50unattended-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/' as it has an invalid
   filename extension  

直接到目录删除即可

帮助信息

http://grenangen.se/node/89
http://stackoverflow.com/questions/40046786/windows-bash-wsl-sudo-no-tty-present-and-no-askpass-program-specified/40316123