debian升级异常修复，例如udev，usrmerge之类

libcrypt.so.1: cannot open shared object file when upgrading from Debian Buster to Bullseye | Lisenet.com :: Linux | Security | Networking

 

升级前：

$ apt install usrmerge

 

手动下载：

$ cd /tmp
$ apt download libcrypt1

手动解包，并copy到指定文件夹： 

$ dpkg-deb -x libcrypt1_1%3a4.4.33-2_amd64.deb .
$ sudo cp -pr usr/lib/* /usr/lib/

尝试系统修复：

apt --fix-broken install --allow-downgrades

手动安装指定版本： 

apt install libc6=2.36-9+deb12u4

手动强制安装指定deb

dpkg -i --force-overwrite xxx.deb

重新安装

apt install libc6 --reinstall 

 

安装dev包：

sudo apt-get install make build-essential libncurses-dev bison flex libssl-dev libelf-dev