我跑了
apt-get update
apt-get upgrade
一切都很顺利，直到发生了这样的事情：
Preparing to unpack .../mysql-server-5.5_5.5.50-0ubuntu0.14.04.1_amd64.deb ...
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/FrontEnd/ScreenSize.pm line 33.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/FrontEnd/ScreenSize.pm line 48.
open2: fork failed: Cannot allocate memory at /usr/share/perl5/Debconf/ConfModule.pm line 59.
dpkg: warning: subprocess old pre-removal script returned error exit status 12
dpkg: trying script from the new package instead ...
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/FrontEnd/ScreenSize.pm line 33.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/FrontEnd/ScreenSize.pm line 48.
open2: fork failed: Cannot allocate memory at /usr/share/perl5/Debconf/ConfModule.pm line 59.
dpkg: error processing archive /var/cache/apt/archives/mysql-server-5.5_5.5.50-0ubuntu0.14.04.1_amd64.deb (--unpack):
subprocess new pre-removal script returned error exit status 12
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/FrontEnd/ScreenSize.pm line 33.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/FrontEnd/ScreenSize.pm line 48.
open2: fork failed: Cannot allocate memory at /usr/share/perl5/Debconf/ConfModule.pm line 59.
dpkg: error while cleaning up:
subprocess installed post-installation script returned error exit status 12
Preparing to unpack .../mysql-client-core-5.5_5.5.50-0ubuntu0.14.04.1_amd64.deb ...
Unpacking mysql-client-core-5.5 (5.5.50-0ubuntu0.14.04.1) over (5.5.49-0ubuntu0.14.04.1) ...
Preparing to unpack .../mysql-client-5.5_5.5.50-0ubuntu0.14.04.1_amd64.deb ...
Unpacking mysql-client-5.5 (5.5.50-0ubuntu0.14.04.1) over (5.5.49-0ubuntu0.14.04.1) ...
dpkg: unrecoverable fatal error, aborting:
fork failed: Cannot allocate memory
E: Sub-process /usr/bin/dpkg returned an error code (2)
所以我运行：
# free -m
total used free shared buffers cached
Mem: 992 693 298 16 16 144
-/+ buffers/cache: 532 459
Swap: 0 0 0
在我看来，这似乎足够运行更新。接下来我尝试：
# dpkg --configure -a
Setting up mysql-client-core-5.5 (5.5.50-0ubuntu0.14.04.1) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Setting up libcurl3-gnutls:amd64 (7.35.0-1ubuntu2.8) ...
Setting up libdrm2:amd64 (2.4.67-1ubuntu0.14.04.1) ...
Setting up libdrm-radeon1:amd64 (2.4.67-1ubuntu0.14.04.1) ...
Setting up libdrm-nouveau2:amd64 (2.4.67-1ubuntu0.14.04.1) ...
Setting up libcurl3:amd64 (7.35.0-1ubuntu2.8) ...
Setting up libmysqlclient18:amd64 (5.5.50-0ubuntu0.14.04.1) ...
Setting up libavahi-common-data:amd64 (0.6.31-4ubuntu1.1) ...
Setting up libavahi-common3:amd64 (0.6.31-4ubuntu1.1) ...
Setting up libdrm-intel1:amd64 (2.4.67-1ubuntu0.14.04.1) ...
Setting up libavahi-client3:amd64 (0.6.31-4ubuntu1.1) ...
Setting up mysql-client-5.5 (5.5.50-0ubuntu0.14.04.1) ...
Setting up curl (7.35.0-1ubuntu2.8) ...
dpkg: error processing package mysql-server-5.5 (--configure):
package is in a very bad inconsistent state; you should
reinstall it before attempting configuration
dpkg: dependency problems prevent configuration of mysql-server:
mysql-server depends on mysql-server-5.5; however:
Package mysql-server-5.5 is not configured yet.
dpkg: error processing package mysql-server (--configure):
dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.19-0ubuntu6.9) ...
Errors were encountered while processing:
mysql-server-5.5
mysql-server
目前，我不确定我需要修复什么问题。如果有人能给我指明正确的方向，我将不胜感激。
谢谢！
答案1
为了增加可见性，下面是我修复它的方法：
apt-get -f install
谢谢，@Kuntal Majumder