很无奈，在小鸟云买的裸金属服务器居然默认只有debian10以及老掉牙的ubuntu16（不理解且大为震惊）,眼前一黑一脸绝望，只能咬牙手动从D10一步一步往上升，小小做一回赵高
接下来直入正题，ssh到这台机器开始后续操作
从Debian10 到 Debian11
由于是刚拿到的新系统，也没什么需要备份的地方，直接开始先update一下。
apt update又是眼前一黑，更新不动，看着像是内网的镜像，一看镜像源果然如此，并且无法使用，无话可说，换源吧
找了很多源，最终还是腾讯云的软件源好用：
原地址： https://mirrors.cloud.tencent.com/help/debian.html
cat >/etc/apt/sources.list<<EOF
deb http://mirrors.tencent.com/debian-archive/debian buster main contrib non-free
# deb-src http://mirrors.tencent.com/debian-archive/debian buster main contrib non-free
deb http://mirrors.tencent.com/debian-archive/debian buster-updates main contrib non-free
# deb-src http://mirrors.tencent.com/debian-archive/debian buster-updates main contrib non-free
deb http://mirrors.tencent.com/debian-archive/debian-security buster/updates main contrib non-free
# deb-src http://mirrors.tencent.com/debian-archive/debian-security buster/updates main contrib non-free
EOF
apt update
接下来是将所有包更新到最新版
apt upgrade
apt full-upgrade
取决于服务器的网速，需要消耗不同等分的耐心。
接下来再次换源，换成debian11的源,然后再次更新源和包
cat >/etc/apt/sources.list<<EOF
deb http://mirrors.tencent.com/debian-archive/debian bullseye main contrib non-free
# deb-src http://mirrors.tencent.com/debian-archive/debian bullseye main contrib non-free
deb http://mirrors.tencent.com/debian-archive/debian bullseye-updates main contrib non-free
# deb-src http://mirrors.tencent.com/debian-archive/debian bullseye-updates main contrib non-free
# 安全更新使用主安全更新源（bullseye安全更新不在archive安全更新源中）
deb https://security.debian.org/debian-security bullseye-security main contrib non-free
# deb-src https://security.debian.org/debian-security bullseye-security main contrib non-free
EOF
apt update
apt upgrade
apt full-upgrade
发现还有没走镜像的安全更新源，腾讯这边貌似没有，由于我耐心不足，不打算继续用它，直接换成中科大源
rm -rf /etc/apt/sources.list
cat >/etc/apt/sources.list.d/debian.sources<<EOF
Types: deb
URIs: http://mirrors.ustc.edu.cn/debian
Suites: bullseye bullseye-updates
Components: main contrib non-free
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
Types: deb
URIs: http://mirrors.ustc.edu.cn/debian-security
Suites: bullseye-security
Components: main contrib non-free
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
EOF
apt update
apt upgrade
apt full-upgrade
一下子就对味儿了，直接起飞，两三分钟结束后直接重启，然后进入下一轮
reboot等待系统开机后再次ssh到它开始下一轮的升级
从Debian11 到 Debian12
其实所做的操作一样，换源，更新，重启，由于中科大的源让我尝到了甜头，后面都用它了。
cat >/etc/apt/sources.list.d/debian.sources<<EOF
Types: deb
URIs: http://mirrors.ustc.edu.cn/debian
Suites: bookworm bookworm-updates
Components: main contrib non-free non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
Types: deb
URIs: http://mirrors.ustc.edu.cn/debian-security
Suites: bookworm-security
Components: main contrib non-free non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
EOF
apt update
apt upgrade
apt full-upgrade
reboot这里由于没什么特殊的设置，本来不打算截图了，结果还是出了意外，磁盘空间不足。。。WTF？
查一下磁盘情况,大概率是旧的内核残留：
df -h
ls -lh /boot | grep vmlinuz
ls -lh /boot | grep initrd
结果也是不出所料，删除旧的继续升级就行
apt remove linux-image-4.19.0-27-amd64
apt remove linux-image-4.19.0-6-amd64
apt autoremove
apt upgrade
apt full-upgrade接下来进入下一级
Debian12 到 Debian13
这是一个枯燥的过程，做着重复的操作。
cat >/etc/apt/sources.list.d/debian.sources<<EOF
Types: deb
URIs: http://mirrors.ustc.edu.cn/debian
Suites: trixie trixie-updates
Components: main contrib non-free non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
Types: deb
URIs: http://mirrors.ustc.edu.cn/debian-security
Suites: trixie-security
Components: main contrib non-free non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
EOF
apt update
apt upgrade
apt full-upgrade
reboot大功告成。无力吐槽
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