debian正式发布了，还在debian12的用户可以考虑升级到debian13了。主机测评在这里介绍最简单的升级办法，复制、粘贴、回车即可！注意：数据无价，备份了再升级，避免出现错误导致不必要的损失。
第一步：先升级现有系统组件
apt update
apt upgrade
apt full-upgrade
第二步：清理废物
apt –purge autoremove
然后重启： reboot
第三步：确认当前版本
cat /etc/debian_version
确定你当前已经是最新的debian12了，别搞了半天还是debian11或者其他
第四步：修改源文件
sed -i ‘s/bookworm/trixie/g’ /etc/apt/sources.list
sed -i ‘s/bookworm/trixie/g’ /etc/apt/sources.list.d/*
或者你干脆替换吧，国内用：
cat > /etc/apt/sources.list << EOF
deb https://mirrors.huaweicloud.com/debian/ trixie main non-free non-free-firmware contrib
deb-src https://mirrors.huaweicloud.com/debian/ trixie main non-free non-free-firmware contrib
deb https://mirrors.huaweicloud.com/debian-security/ trixie-security main
deb-src https://mirrors.huaweicloud.com/debian-security/ trixie-security main
deb https://mirrors.huaweicloud.com/debian/ trixie-updates main non-free non-free-firmware contrib
deb-src https://mirrors.huaweicloud.com/debian/ trixie-updates main non-free non-free-firmware contrib
deb https://mirrors.huaweicloud.com/debian/ trixie-backports main non-free non-free-firmware contrib
deb-src https://mirrors.huaweicloud.com/debian/ trixie-backports main non-free non-free-firmware contrib
EOF
海外用：
cat > /etc/apt/sources.list << EOF
deb http://mirrors.linode.com/debian/ trixie main non-free non-free-firmware contrib
deb-src http://mirrors.linode.com/debian/ trixie main non-free non-free-firmware contrib
deb http://mirrors.linode.com/debian-security/ trixie-security main
deb-src http://mirrors.linode.com/debian-security/ trixie-security main
deb http://mirrors.linode.com/debian/ trixie-updates main non-free non-free-firmware contrib
deb-src http://mirrors.linode.com/debian/ trixie-updates main non-free non-free-firmware contrib
deb http://mirrors.linode.com/debian/ trixie-backports main non-free non-free-firmware contrib
deb-src http://mirrors.linode.com/debian/ trixie-backports main non-free non-free-firmware contrib
EOF
接下来回车执行，然后更新过程中根据需要选择是或者否升级你需要升级的，实在不懂就一路yes+回车 !
最后一步：清理废物
apt –purge autoremove
apt autoclean
再次提醒：升级之前备份你的数据，别搞翻车了没办法后悔！
如果机器上没有重要的东西，你可以直接从第四步开始执行！
