~$ sudo dpkg -P --force-all tftpd-hpa (Reading database ... 244606 files and directories currently installed.) Removing tftpd-hpa ...Stopping HPA's tftpd: in.tftpdinvoke-rc.d: initscript tftpd-hpa, action "stop" failed.
dpkg: error processing tftpd-hpa (--purge): subprocess pre-removal script returned error exit status 1 Errors were encountered while processing: tftpd-hpa 前两天更新包，遇到这个，无论如何都删不掉，也不能升级。该如何呢？