配置 mysql-server 时出现 Debconf 错误

Question

当我尝试运行 sudo apt-get upgrade 时，出现以下错误。

我在运行 sudo reconfigure postfix 时也遇到类似的错误，我非常需要运行它，因为传出的电子邮件不再工作。我还运行了 sudo apt-get autoclean、sudo apt-getclean、sudo apt-get install debconf --reinstall 和 sudo apt-get install -f 都没有成功。

magento@ubuntu:~$ sudo apt-get install debconf --reinstall
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  linux-headers-3.5.0-17 linux-headers-3.5.0-17-generic
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  mysql-server-5.5
Suggested packages:
  tinyca mailx
The following packages will be upgraded:
  mysql-server-5.5
1 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 8 not upgraded.
28 not fully installed or removed.
Need to get 149 kB/8,990 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://no.archive.ubuntu.com/ubuntu/ quantal/main debconf all 1.5.46ubuntu1     [149 kB]
Fetched 149 kB in 0s (472 kB/s)
Use of uninitialized value in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line     46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at     /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at     /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at     /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
(Reading database ... 81482 files and directories currently installed.)
Preparing to replace mysql-server-5.5 5.5.28-0ubuntu0.12.10.1 (using .../mysql-    server-5.5_5.5.28-0ubuntu0.12.10.2_amd64.deb) ...
Use of uninitialized value in concatenation (.) or string at     /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line     46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at     /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at     /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at     /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
Use of uninitialized value in concatenation (.) or string at     /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line     46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at     /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at     /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at     /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
dpkg: error processing /var/cache/apt/archives/mysql-server-5.5_5.5.28-    0ubuntu0.12.10.2_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1
Use of uninitialized value in concatenation (.) or string at     /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line     46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at     /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at     /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at     /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 1
   Errors were encountered while processing:
    /var/cache/apt/archives/mysql-server-5.5_5.5.28-0ubuntu0.12.10.2_amd64.deb
   E: Sub-process /usr/bin/dpkg returned an error code (1)

运行 Ubuntu 12.10。

命令 df 给出：

Filesystem                 1K-blocks    Used Available Use% Mounted on
/dev/mapper/magento-root  53613052 6529812  44359812  13% /
udev                         3978932       4   3978928   1% /dev
tmpfs                        1595380     264   1595116   1% /run
none                            5120       0      5120   0% /run/lock
tmpfs                        3988440       0   3988440   0% /run/shm
none                          102400       0    102400   0% /run/user
/dev/sda1                     233191   53511    167239  25% /boot

我似乎有帖子建议不要将 tmpfs 用于 /var/cahce，如果这是问题，我该如何配置 Ubuntu 以将我的硬盘（和 SSD）用于 /var/cache。

在此先感谢您的帮助，并原谅我的新手。

更新：

跑步

sudo apt-get update --fix-missing
sudo apt-get autoremove && sudo apt-get clean && sudo apt-get install -f

给出：

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  mysql-server-5.5
Suggested packages:
  tinyca mailx
The following packages will be REMOVED:
  linux-headers-3.5.0-17 linux-headers-3.5.0-17-generic
The following packages will be upgraded:
  mysql-server-5.5
1 upgraded, 0 newly installed, 2 to remove and 8 not upgraded.
28 not fully installed or removed.
Need to get 0 B/8,840 kB of archives.
After this operation, 69.9 MB disk space will be freed.
Do you want to continue [Y/n]? y
Use of uninitialized value in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line         46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at         /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at         /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
(Reading database ... 81482 files and directories currently installed.)
Preparing to replace mysql-server-5.5 5.5.28-0ubuntu0.12.10.1 (using .../mysql-        server-5.5_5.5.28-0ubuntu0.12.10.2_amd64.deb) ...
Use of uninitialized value in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line         46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at         /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at         /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
Use of uninitialized value in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line         46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at         /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at         /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
dpkg: error processing /var/cache/apt/archives/mysql-server-5.5_5.5.28-         0ubuntu0.12.10.2_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1
Use of uninitialized value in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line         46, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value in pattern match (m//) at         /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in -d at         /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3.
Use of uninitialized value $directory in concatenation (.) or string at         /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3.
debconf: DbDriver "config": mkdir :No such file or directory
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/mysql-server-5.5_5.5.28-0ubuntu0.12.10.2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)  

Answer 1

我想我有点太晚了......但我还是会发布它，以防有人来这里寻找同样问题的解决方案。

debconf: DbDriver "config": mkdir :No such file or directory意味着debconf缺少它的目录，/var/cache该目录已以某种方式被删除（仍然无法弄清楚如何，考虑到它之前工作正常）。

一个明显的解决方案是重新创建它 ( sudo mkdir /var/cache/debconf)，或者从包中重新安装 debconf（真的不需要那样做）。

Answer 2

尝试运行：

sudo apt-get update --fix-missing
sudo apt-get autoremove && sudo apt-get clean && sudo apt-get install -f