删除损坏的包

Question

最近在对 phpmyadmin 设置感到沮丧时，我决定从头开始。

不幸的是，在卸载阶段，我被提示输入 mysql 的 root 密码，当时我手头没有。可以说，它告诉我会有残留的组件，因为它无法正确清洁其数据库连接器。

当我回到家时，我试图删除这个包aptitude purge，结果证明它并不比aptitude remove它看到 phpmyadmin更有效，试图删除它，但失败了，因为与该包关联的目录已经从我之前的尝试中删除了。

我试图重新安装 phpmyadmin，但 aptitude 只是说没有可用的更新，并且什么也没做，如果有更新，无论如何我可能会遇到同样的问题。

在这方面，我通过删除它使用的数据库并从用户表中清除它来清理 mysql。然而，我不知道包装中还剩下什么，甚至不知道如何清洁挂钩。

的结果 dpkg --purge

ickronia:/home/ken# dpkg --purge phpmyadmin
(Reading database ... 27158 files and directories currently installed.)
Removing phpmyadmin ...
/var/lib/dpkg/info/phpmyadmin.prerm: line 5: /usr/share/dbconfig-common/dpkg/prerm.mysql: No such file or directory
dpkg: error processing phpmyadmin (--purge):
 subprocess pre-removal script returned error exit status 1
/var/lib/dpkg/info/phpmyadmin.postinst: line 35: /usr/share/dbconfig-common/dpkg/postinst.mysql: No such file or directory
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
phpmyadmin

按照 Gile 的建议，我尝试重新安装依赖项 dbconfig-common

ickronia:/home/ken# aptitude reinstall dbconfig-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done
dbconfig-common is not currently installed, so it will not be reinstalled.
dbconfig-common is not currently installed, so it will not be reinstalled.
The following packages are BROKEN:
  phpmyadmin
0 packages upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
Need to get 0B of archives. After unpacking 0B will be used.
The following packages have unmet dependencies:
  phpmyadmin: Depends: php5-mcrypt but it is not installable
              Depends: dbconfig-common but it is not installable
              Depends: libjs-mootools (>= 1.2.4.0~debian1-1) which is a virtual  package.
The following actions will resolve these dependencies:

Remove the following packages:
phpmyadmin

Score is 121

Accept this solution? [Y/n/q/?] n

*** No more solutions available ***

The following actions will resolve these dependencies:

Remove the following packages:
phpmyadmin

Score is 121

Accept this solution? [Y/n/q/?] n

*** No more solutions available ***

The following actions will resolve these dependencies:

Remove the following packages:
phpmyadmin

Score is 121

Accept this solution? [Y/n/q/?] y
The following packages will be REMOVED:
  phpmyadmin{a}
0 packages upgraded, 0 newly installed, 1 to remove and 3 not upgraded.
Need to get 0B of archives. After unpacking 17.7MB will be freed.
Do you want to continue? [Y/n/?] y
Writing extended state information... Done
(Reading database ... 27158 files and directories currently installed.)
Removing phpmyadmin ...
/var/lib/dpkg/info/phpmyadmin.prerm: line 5: /usr/share/dbconfig-common/dpkg/prerm.mysql: No such file or directory
dpkg: error processing phpmyadmin (--remove):
 subprocess pre-removal script returned error exit status 1
/var/lib/dpkg/info/phpmyadmin.postinst: line 35: /usr/share/dbconfig-common/dpkg/postinst.mysql: No such file or directory
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 phpmyadmin
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install.  Trying to recover:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Writing extended state information... Done
Reading task descriptions... Done

ickronia:/home/ken#

看来 phpmyadmin 干净地清除了 dbconfig-common

ickronia:/usr/share/dbconfig-common# ls -alF
total 12
drwxr-xr-x  3 root root 4096 2011-02-09 08:09 ./
drwxr-xr-x 98 root root 4096 2011-01-20 21:42 ../
drwxr-xr-x  3 root root 4096 2011-01-05 11:08 data/
ickronia:/usr/share/dbconfig-common#

按照 Giles 的建议尝试从档案中 dpkg

ickronia:/usr/share/dbconfig-common# dpkg -i /var/cache/apt/archives/{dbconfig-common,php5-mcrypt,libjs-mootools}*.deb
Selecting previously deselected package dbconfig-common.
(Reading database ... 27161 files and directories currently installed.)
Unpacking dbconfig-common (from .../dbconfig-common_1.8.46_all.deb) ...
Selecting previously deselected package php5-mcrypt.
Unpacking php5-mcrypt (from .../php5-mcrypt_5.3.3-6_i386.deb) ...
Selecting previously deselected package libjs-mootools.
Unpacking libjs-mootools (from .../libjs-mootools_1.2.5~debian1-2_all.deb) ...
Setting up dbconfig-common (1.8.46) ...
dpkg: dependency problems prevent configuration of php5-mcrypt:
 php5-mcrypt depends on libltdl7 (>= 2.2.6b); however:
  Package libltdl7 is not installed.
 php5-mcrypt depends on libmcrypt4; however:
  Package libmcrypt4 is not installed.
dpkg: error processing php5-mcrypt (--install):
 dependency problems - leaving unconfigured
Setting up libjs-mootools (1.2.5~debian1-2) ...
Processing triggers for man-db ...
Processing triggers for libapache2-mod-php5 ...
Reloading web server config: apache2.
Errors were encountered while processing:
 php5-mcrypt
ickronia:/usr/share/dbconfig-common#

我有一个运行在 php 上的网络服务器，但我愿意冒着停机的风险来解决这个问题。

Answer 1

phpmyadmin取决于dbconfig-common，其中包含/usr/share/dbconfig-common/dpkg/prerm.mysql。看起来您已经设法卸载dbconfig-common而没有卸载phpmyadmin，这不应该发生（您尝试过--force什么吗？）。

我的建议是先尝试aptitude reinstall dbconfig-common。如果它有效，您应该有一个处于一致状态的系统，您可以从中重试aptitude purge phpmyadmin。

您可以做的另一件事是注释掉/var/lib/dpkg/info/phpmyadmin.prerm. 这很可能使您能够卸载phpmyadmin. 我怀疑您在手动编辑这些 mysql 表时做了该行应该做的事情，但我不知道phpmyadmin或一般情况下数据库管理员，所以我只是猜测。

之间的区别remove，并purge是，remove只是删除了程序和数据文件（你可以重新下载的东西），而purge首先做什么remove，然后做也会删除配置文件（你可能已在本地编辑的内容）。如果remove失败，也会purge。