从debian11升级到debian12

 apt update
 apt upgrade
 apt full-upgrade
 apt --purge autoremove
 ​
 apt-mark showhold | more
 apt-mark unhold <pkg-name>
 ​
 cp -v /etc/apt/sources.list /opt/sources.list-bakup-debian11
 sed -i 's/bullseye/bookworm/g' /etc/apt/sources.list
 ​
 #debian10 buster 
 #sed -i 's/buster/bullseye/g' /etc/apt/sources.list
 ​
 apt update
 apt full-upgrade
 apt --purge autoremove
 ​
 cat /etc/issue
 cat /etc/os-release
 cat /etc/debian_version
 ​
 #尝试重启看是否正常！
 reboot
 ​
 ​

参考资料 https://zhuanlan.zhihu.com/p/646765535