我试图清除roundup，并aptitude输出以下错误行：
update-rc.d: /etc/init.d/roundup exists during rc.d purge (use -f to force)
dpkg: error processing roundup (--purge):
subprocess installed post-removal script returned error exit status 1
Processing triggers for ureadahead ...
No apport report written because MaxReports has already been reached
Errors were encountered while processing:
roundup
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
aptitude的日志没有帮助；那里写了以下几行：
IMPORTANT: this log only lists intended actions; actions which fail due to
dpkg problems may not be completed.
但出现了以下两行apt/history.log：
Purge: roundup:amd64 (1.4.18-1.1)
Error: Sub-process /usr/bin/dpkg returned an error code (1)
roundup顺便说一下，这是一个带有命令行、Web 和电子邮件界面的问题跟踪系统。我不使用它。
系统信息：我正在使用 Ubuntu 12.04.4 LTS，输出为uname -srvmpio：
Linux 3.2.0-61-generic #93-Ubuntu SMP Fri May 2 21:31:50 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
根据要求，我尝试了以下命令：
sudo dpkg -P --force-all --force-remove-reinstreq roundup
输出为：
Removing roundup ...
update-rc.d: /etc/init.d/roundup exists during rc.d purge (use -f to force)
dpkg: error processing roundup (--purge):
subprocess installed post-removal script returned error exit status 1
Processing triggers for ureadahead ...
Errors were encountered while processing:
roundup
值得一提的是，这是在运行命令之前和之后完成的
sudo update-rc.d -f roundup remove
更新：aptitude更新清除失败的尝试，根据，包的状态为H，这意味着半安装。我尝试重新安装它（成功）并再次删除它，但没有成功 - 出现了相同的错误，并且状态又恢复了半安装。
答案1
尝试强制删除该roundup包，
sudo dpkg -P --force-remove-reinstreq roundup
或者
roundup-dirs尝试将和移动roundup到其他位置，然后尝试上述命令，例如，
sudo mv /etc/init.d/roundup-dirs ~/
sudo mv /etc/init.d/roundup ~/
sudo dpkg -P --force-all --force-remove-reinstreq roundup