我正在尝试在全新安装的 Wheezy 上安装 php5-mysqlnd（/etc/debian_version 将其称为 wheezy/sid），但遇到了一个问题：
root@debian:/var/www/lottery1# apt-get install php5-mysqlnd
Reading package lists... Done
Building dependency tree
Reading state information... Done
php5-mysqlnd is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? Y
Setting up php5-mysqlnd (5.4.0-3) ...
ucfr: Attempt from package php5-mysqlnd to take /etc/php5/mods-available/mysql.ini away from package php5-mysql
ucfr: Aborting.
dpkg: error processing php5-mysqlnd (--configure):
subprocess installed post-installation script returned error exit status 4
Processing triggers for libapache2-mod-php5 ...
configured to not write apport reports
Reloading web server config: apache2.
Errors were encountered while processing:
php5-mysqlnd
E: Sub-process /usr/bin/dpkg returned an error code (1)
似乎与 php5-mysql 包存在某种冲突，但即使删除（使用 --purge）php5-mysql 包后仍然出现此错误。
有什么想法吗？我正在尝试运行大量使用 mysqli_result::fetch_all() 的 Web 工具。
谢谢！
答案1
因此，在删除 php5-mysql 后，我必须强制删除 php5-mysqlnd，然后我必须清除 php5-mysql，然后我必须清除 php5-mysqlnd，然后我才能安装 php5-mysqlnd。
dpkg --remove --force-remove-reinstreq php5-mysqlnd
dpkg --purge php5-mysql
dpkg --purge php5-mysqlnd
只有一次dpkg -l | grep php5-mysql没有输出，我才能apt-get install php5-mysqlnd让它工作。