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Dpkg 错误 E：子进程 /usr/bin/dpkg 返回错误代码 (2)

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Dpkg 错误 E：子进程 /usr/bin/dpkg 返回错误代码 (2)

我无法升级我的 ubuntu 18.04 这是日志，

Fetched 427 MB in 45s (9,542 kB/s)                                             
Extracting templates from packages: 100%
Preconfiguring packages ...
dpkg: warning: 'start-stop-daemon' not found in PATH or not executable
dpkg: error: 1 expected program not found in PATH or not executable
Note: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin
E: Sub-process /usr/bin/dpkg returned an error code (2)

我尝试了在谷歌上找到的所有解决方案但都没有用。

echo $PATH
Output: /home/bs204/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lib/dart/bin

which start-stop-daemon
No output

Output cat /etc/sudoers

#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults    env_reset
Defaults    mail_badpass
Defaults    secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d

答案1

我找到了我的问题的解决方案。

sudo -i
mkdir /tmp
mkdir /tmp/dpkg
cd /tmp/dpkg
wget http://security.ubuntu.com/ubuntu/pool/main/d/dpkg/dpkg_1.19.7ubuntu1_amd64.deb
ar -x dpkg_1.19.7ubuntu1_amd64.deb
tar -xf data.tar.xz
cp ./sbin/start-stop-daemon /sbin

如果 dpkg 损坏：

cp ./usr/bin/dpkg /usr/bin/
apt update 
apt install --reinstall dpkg
apt upgrade

答案2

谢谢，这帮助我解决了我的问题：

  dpkg: warning:  'start-stop-daemon' not found in PATH or not executable

您的好解决方案的一个补充：在我的 OMV 系统上，我没有“ar”，所以我使用命令

"dpkg-deb -x dpkg_1.19.7ubuntu1_amd64.deb ."

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