https://www.cnblogs.com/pipci/p/8862292.html
the grub-efi-amd64 package failed to install into /target
without the grub boot loader ,the installed system will not boot
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1298399
xiufu
https://blog.csdn.net/superjunenaruto/article/details/96967907
#ubuntu与centos对比
https://www.linuxprobe.com/ubuntu-comparison-centos.html
#update apt repository:
sudo vi /etc/apt/sources.list
#append
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
#make available:
sudo apt-get update
#更新ubuntun18.04的软件源为国内，再执行apt-get update报错
#issue: the public key is not available: NO_PUBKEY 3B4FE6ACC0B21F32
#solve :
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32
#redo:
sudo apt-get update
#issue:Certificate verification failed: The certificate is NOT trusted
#重装ca-certificates.
sudo apt-get install --reinstall ca-certificates
https://blog.csdn.net/Chamico/article/details/89788324
#Ubuntu搜狗输入法安装指南
https://pinyin.sogou.com/linux/help.php
sudo dpkg -i sogoupinyin_2.4.0.3469_amd64.deb
修复依赖关系：sudo apt-get install -f
ctrl + space
#issue:
#dpkg: error processing archive sogoupinyin_2.4.0.3469_amd64.deb (--install):
#installing sogoupinyin would break fcitx-ui-qimpanel, and
#deconfiguration is not permitted
#solve:
sudo apt-get remove fcitx-ui-qimpanel
