不同体系结构的linux镜像源不是通用的。 32/64位x86体系结构处理器的封装包括arm(arm64、armhf )、powerpc (PPC 64 El )、RISC-v (riscv 64 )和S390x等体系结构的设备arm64arm
清华源https://mirrors.tuna.Tsinghua.edu.cn/help/Ubuntu-ports /
镜像源配置文件sudo vim /etc/apt/sources.list
在替换之前记住备份
sudo mv/etc/apt/sources.list/etc/apt/sources.list.back
#默认情况下，源镜像被注释以加快apt更新速度。 如果需要，deb https://mirrors.tuna.Tsinghua.edu.cn/Ubuntu-ports/bionicmainrestricteduniversemultiverse # de B- src 3https://mirriver bionicmainrestricteduniversemultiversedeb 3359 mirrors.teb Ubuntu-ports/bionic-updatesmainrestricteduniversemultiverse # de B- src https://mirrors.tuna.Tsinghua.edu.cn/Ubuntu bionic-updatesmainrestricteduniversemultiversedeb https://mirrors.tu bionic-backportsmainrestricteduniversemultiverse # de B- src https://mirrors.tuna.Tsinghua.edu.cn/Ubuntu-ports/bionic-backportsmainrestricteduniversemultiversedeb 3359 mirrors.tuna.Tsinghua.edu.cn/Ubuntu-ports/bionic-sechua de B- src https://mirrors.tuna.Tsinghua.edu.cn/Ubuntu-ports/bionic-securitymainrestricteduniversemultiverse #预发布deb https://mirrors.tuna.Tsinghua.edu.cn/Ubuntu-ports/bionic-proposedmainrestricteduniversemultiverse # 不建议启用de B- src https://mirrors.tuna.Tsinghua.edu.cn/Ubuntu-ports/bionic-proposedmainrestricteduniversemull
deb http://mirrors.ustc.edu.cn/Ubuntu-ports/xenialmainmultiverserestricteduniversedeb http://mirrors.ustc.edu.cn/xenial-backportsmainmultiverserestricteduniversedeb 3358 mirrors.ustc.edu.cn/Ubuntu-ports/xenial-proposedmainmultiverserestricteduniversedeb 3358 mirrors.ustc.edu.cn/Ubuntu-ports/xenial-securitymainmultiverserestricteduniversedeb 3358 mirrors.ustc.edu.cn/Ubuntu-ports/xenial-updatesmainmultiverserestricteduniversedeb-src http://mirrors.ustc.edu.cn/Ubuntu-ports/xenialmainmultiverserestricteduniversedeb-src http://mirrors.ustc.edu.cn/Ubuntu-ports/xenial-backportsmainmultiverserestricteduniversedeb-src http://mirrors.ustc.edu.cn/Ubuntu-ports/xenial-proposedmainmultiverserestricteduniversedeb-src http://mirrors.ustc.edu.cn/Ubuntu-ports/xenial-securitymainmultiverserestricteduniversedeb-src http://mirrors.ustc.edu.cn/Ubuntu-ports/xenial-updates mates