apt使用技巧.md

• References
• 修改apt源
  • 原文件备份
  • 编辑源列表文件
• 在Ubuntu中添加和删除PPA的软件源
  • 添加 PPA 源
  • 删除 PPA 源
• Error
  • N: Skipping acquire of configured file 'universe/binary-i386/Packages' as repository 'http://miktex.org/download/ubuntu' bionic InRelease' doesn't support architecture 'i386'
  • error: Could not get lock /var/lib/dpkg/lock
  • error: dpkg frontend is locked by another process
  • error: http://mirrors.aliyun.com/ubuntu bionic-security InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B4FE6ACC0B21F32

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References

原文转载

在Ubuntu中添加和删除PPA的软件源

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修改apt源

原文件备份

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

编辑源列表文件

sudo vim /etc/apt/sources.list

# 将原来的列表删除，添加如下内容:

# ustc sources  
deb http://mirrors.ustc.edu.cn/ubuntu/  bionic main restricted universe multiverse  
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse  
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse  
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse  
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse  
# deb-src http://mirrors.ustc.edu.cn/ubuntu bionic main restricted universe multiverse  
# deb-src <http://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse  
# deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse  
# deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse  
# deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse  

# ali sources
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse  
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse  
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse  
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse  
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse  
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse  
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse  
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse  
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse  
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse  

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在Ubuntu中添加和删除PPA的软件源

添加 PPA 源

添加 PPA 源的命令

sudo add-apt-repository ppa:user/ppa-name  

添加好记得要更新一下

sudo apt-get update

删除 PPA 源

删除 PPA 源的命令格式则为

sudo add-apt-repository -r ppa:user/ppa-name

然后进入 /etc/apt/sources.list.d 目录，将相应 ppa 源的保存文件删除。 最后同样更新一下：

sudo apt-get update

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Error

N: Skipping acquire of configured file 'universe/binary-i386/Packages' as repository 'http://miktex.org/download/ubuntu' bionic InRelease' doesn't support architecture 'i386'

sudo vim /etc/apt/sources.list.d/miktex.list

# 在deb后面加入 [arch=amd64]

error: Could not get lock /var/lib/dpkg/lock

sudo rm /var/lib/dpkg/lock  
sudo rm /var/lib/apt/lists/lock  
sudo rm /var/cache/apt/archives/lock  

error: dpkg frontend is locked by another process

sudo rm /var/lib/dpkg/lock
sudo rm /var/lib/dpkg/lock-frontend
sudo rm /var/cache/apt/archives/lock

error: http://mirrors.aliyun.com/ubuntu bionic-security InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B4FE6ACC0B21F32

apt-key adv –keyserver keyserver.ubuntu.com –recv-keys 3B4FE6ACC0B21F32