筆記（三）Jetson Nano 更換鏡像源

1、更換

NVIDIA官方提供的Linux鏡像版本為Ubuntu 18.04 LTS，鏡像預設的是Ubuntu官方源，在國内使用該源下載下傳程式速度較慢，是以需要更換。

打開

/etc/apt/sources.list

檔案，注釋原内容，在末尾添加下述内容（以清華大學鏡像源為例，注意鏡像源需要支援arm64架構）：

# 預設注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse

# 預釋出軟體源，不建議啟用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-proposed main restricted universe multiverse
           

2、其他鏡像源

下面提供了國内幾個支援arm64架構的Ubuntu鏡像源：

清華大學鏡像源：

# 預設注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse

# 預釋出軟體源，不建議啟用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-proposed main restricted universe multiverse
           

中國科學技術大學鏡像源：

# 預設注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋
deb http://mirrors.ustc.edu.cn/ubuntu-ports bionic main restricted universe multiverse
# deb-src http://mirrors.ustc.edu.cn/ubuntu-ports bionic main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu-ports bionic-updates main restricted universe multiverse
# deb-src http://mirrors.ustc.edu.cn/ubuntu-ports bionic-updates main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu-ports bionic-backports main restricted universe multiverse
# deb-src http://mirrors.ustc.edu.cn/ubuntu-ports bionic-backports main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu-ports bionic-security main restricted universe multiverse
# deb-src http://mirrors.ustc.edu.cn/ubuntu-ports bionic-security main restricted universe multiverse

# 預釋出軟體源，不建議啟用
# deb http://mirrors.ustc.edu.cn/ubuntu-ports bionic-proposed main restricted universe multiverse
# deb-src http://mirrors.ustc.edu.cn/ubuntu-ports bionic-proposed main restricted universe multiverse
           

阿裡巴巴鏡像站：

# 預設注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋
deb https://mirrors.aliyun.com/ubuntu-ports/ bionic main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu-ports/ bionic main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu-ports/ bionic-updates main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu-ports/s bionic-backports main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu-ports/ bionic-security main restricted universe multiverse

# 預釋出軟體源，不建議啟用
# deb https://mirrors.aliyun.com/ubuntu-ports/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu-ports/ bionic-proposed main restricted universe multiverse
           

3、系統更新

系統源和軟體源配置完成以後，使用下述兩條指令更新：

sudo apt update
sudo apt upgrade -y