最近Ubuntu 12.04 LTS正式版已经发布，中存储在第一时间也升级安装了下，可是之后再安装其他软件时，总是莫名提示Dependecy缺失，往往缺失的都是一些不知去哪里找源下载的库。经过总结发现，一般这些库或者是Package都是可以在官方找到下载的地址的：
12.04所有package的索引：http://packages.ubuntu.com/precise/ (其他版本类似)
点击Libraries可以找到所有Libraries的下载列表：http://packages.ubuntu.com/precise/libs/
在安装Chrome时会提示缺失Libnss3-1d，接下来就是我从Libraries列表里面找到的(其他库都是类似方法查找)
libnss3-1d (3.13.1.with.ckbi.1.88-1ubuntu6)
Network Security Service libraries
附上12.04上所有Package的索引：
Administration Utilities
Utilities to administer system resources, manage user accounts, etc.
Mono/CLI
Everything about Mono and the Common Language Infrastructure.
Communication Programs
Software to use your modem in the old fashioned style.
Databases
Database Servers and Clients.
debian-installer udeb packages
Special packages for building customized debian-installer variants. Do not install them on a normal system!
Debug packages
Packages providing debugging information for executables and shared libraries.
Development
Development utilities, compilers, development environments, libraries, etc.
Documentation
FAQs, HOWTOs and other documents trying to explain everything related to Debian, and software needed to browse documentation (man, info, etc).
Editors
Software to edit files. Programming environments.
Electronics
Electronics utilities.
Embedded software
Software suitable for use in embedded applications.
Fonts
Font packages.
Games
Programs to spend a nice time with after all this setting up.
GNOME
The GNOME desktop environment, a powerful, easy to use set of integrated applications.
GNU R
Everything about GNU R, a statistical computation and graphics system.
GNUstep
The GNUstep environment.
Graphics
Editors, viewers, converters... Everything to become an artist.
Ham Radio
Software for ham radio.
Haskell
Everything about Haskell.
Web Servers
Web servers and their modules.
Interpreters
All kind of interpreters for interpreted languages. Macro processors.
Java
Everything about Java.
KDE
The K Desktop Environment, a powerful, easy to use set of integrated applications.
Kernels
Operating System Kernels and related modules.
Library development
Libraries necessary for developers to write programs that use them.
Libraries
Libraries to make other programs work. They provide special features to developers.
Lisp
Everything about Lisp.
Language packs
Localization support for big software packages.
Mail
Programs to route, read, and compose E-mail messages.
Mathematics
Math software.
Miscellaneous
Miscellaneous utilities that didn't fit well anywhere else.
Network
Daemons and clients to connect your system to the world.
Newsgroups
Software to access Usenet, to set up news servers, etc.
OCaml
Everything about OCaml, an ML language implementation.
Old Libraries
Old versions of libraries, kept for backward compatibility with old applications.
Other OS's and file systems
Software to run programs compiled for other operating systems, and to use their filesystems.
Perl
Everything about Perl, an interpreted scripting language.
PHP
Everything about PHP.
Python
Everything about Python, an interpreted, interactive object oriented language.
Ruby
Everything about Ruby, an interpreted object oriented language.
Science
Basic tools for scientific work
Shells
Command shells. Friendly user interfaces for beginners.
Sound
Utilities to deal with sound: mixers, players, recorders, CD players, etc.
TeX
The famous typesetting software and related programs.
Text Processing
Utilities to format and print text documents.
Translations
Translation packages and language support meta packages.
Utilities
Utilities for file/disk manipulation, backup and archive tools, system monitoring, input systems, etc.
Version Control Systems
Version control systems and related utilities.
Video
Video viewers, editors, recording, streaming.
Virtual packages
Virtual packages.
Web Software
Web servers, browsers, proxies, download tools etc.
X Window System software
X servers, libraries, fonts, window managers, terminal emulators and many related applications.
Xfce
Xfce, a fast and lightweight Desktop Environment.
Zope/Plone Framework
Zope Application Server and Plone Content Managment System.