当尝试设置我的 rails 环境以使用 postgresql 时，我错误地安装了postgres-xc。
但是安装时出现错误，因此当我尝试删除该包时出现以下错误：
The following packages will be REMOVED:
postgres-xc
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 17.2 MB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 269015 files and directories currently installed.)
Removing postgres-xc ...
dpkg (subprocess): unable to execute installed pre-removal script (/var/lib/dpkg/info/postgres-xc.prerm): No such file or directory
dpkg: error processing postgres-xc (--remove):
subprocess installed pre-removal script returned error exit status 2
* Starting Postgres-XC datanode pg_ctl: another server might be running; trying to start server anyway
pg_ctl: another server might be running; trying to start server anyway
[ OK ]
* Starting Postgres-XC coordinator pg_ctl: another server might be running; trying to start server anyway
[ OK ]
* Starting Postgres-XC gtm gtm_ctl: another server might be running; trying to start server anyway
gtm_ctl: could not start server
Examine the log output.
invoke-rc.d: initscript postgres-xc, action "start" failed.
dpkg: error while cleaning up:
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
postgres-xc
E: Sub-process /usr/bin/dpkg returned an error code (1)
谷歌搜索显示有些解决方案指向编辑/var/lib/dpkg/info/postgres-xc.prerm要包含的文件exit 0，但那不起作用。另外，请注意，它甚至无法识别该文件。
答案1
使用命令打开文件
sudo nano /var/lib/dpkg/status
然后删除损坏的包装postgres-xc和有关它的整个信息块并保存文件。
然后做
apt-get install -f
apt-get update