sudo apt-get install ruby libopenssl-ruby1.8 git-core ruby1.8-dev libncurses-dev ncurses-term exuberant-ctags vim-nox curl
wget ftp://ftp.vim.org/pub/vim/unix/vim-7.2.tar.bz2
tar -xvf vim-7.2.tar.bz2
cd vim72
./configure --enable-multibyte --enable-rubyinterp
sudo make
sudo make install
#安装rails的vim插件
git clone git://github.com/saberma/vimfiles.git ~/.vim
#初始化插件
cd ~/.vim
git submodule init
git submodule update
ln -s ~/.vim/vimrc ~/.vimrc
cd ~/.vim/bundle/Command-T/ruby/command-t
ruby extconf.rb
make
编译ruby时报错：sudo ruby setup.rb
wangqun@wangqun-desktop:~/rubygems-1.3.4$ sudo ruby setup.rb
[sudo] password for wangqun:
Installing RubyGems
Installing gem executable
Removing old source_cache files
Removing old RubyGems RDoc and ri
Installing rubygems-1.3.4 ri into /usr/lib/ruby/gems/1.8/doc/rubygems-1.3.4/ri
./lib/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- rdoc/rdoc (LoadError)
from ./lib/rubygems/custom_require.rb:31:in `require'
from ./lib/rubygems/commands/setup_command.rb:342:in `run_rdoc'
from ./lib/rubygems/commands/setup_command.rb:237:in `install_rdoc'
from ./lib/rubygems/commands/setup_command.rb:116:in `execute'
from ./lib/rubygems/command.rb:257:in `invoke'
from ./lib/rubygems/command_manager.rb:132:in `process_args'
from ./lib/rubygems/command_manager.rb:102:in `run'
from ./lib/rubygems/gem_runner.rb:58:in `run'
from setup.rb:35
那么执行：sudo apt-get install rdoc libruby1.8 irb
sudo gem install cehoffman-acts_as_ferret --no-ri --no-rdoc
$ cp - r /usr/xu/ /usr/liu/
将 /usr/xu 目录中的所有文件及其子目录拷贝到目录 /usr/liu 中。
关于rails升级太快，rails2很多插件无法安装的解决办法：（前提是两个系统可以共享文件）
1、将以前的cache文件复制拷贝到当前环境中：
sudo cp -r /home/wangqun/share/cache/ /usr/lib/ruby/gems/1.8/
2、进入到 cd usr/lib/ruby/gems/1.8/cache目录执行： gem install `ls|awk '{print $1}'` -l
3、完成
文件共享方法：http://www.dnbcw.com/biancheng/ruby/335581.html
环境：主机操作系统是Windows XP，虚拟机是Ubuntu 8.04，虚拟机是VirtualBox 3.1.2。
1. 安装增强功能包(Guest Additions)
安装好Ubuntu 8.04后，运行Ubuntu并登录。然后在VirtualBox的菜单里选择”设备(Devices)” -> “安装增强功能包(Install Guest Additions)”。
你会发现在Ubuntu桌面上多出一个光盘图标，这张光盘默认被自动加载到了文件夹/media/cdom。进入命令行终端，输入：
cd /media/cdom
sudo ./VboxLinuxAdditions.run
开始安装工具包。安装完毕后会提示要重启 Ubuntu。
2. 设置共享文件夹
重启完成后点击”设备(Devices)” -> 分配数据空间，添加一个共享文件夹，选项固定和临时是指该文件夹是否是持久的。共享名可以任取一个自己喜欢的，比如”gongxiang ”，尽量使用英文名称。
3. 挂载共享文件夹
重新进入虚拟Ubuntu，在命令行终端下输入：
sudo mkdir /mnt/shared
sudo mount -t vb oxsf gongxiang /mnt/shared
注意:”gongxiang”是之前创建的共享文件夹的名字。 OK，现在Ubuntu和主机可以互传文件了。
假如您不想每一次都手动挂载，可以在/etc/fstab 中添加一项
gongxiang /mnt/shared vb oxsf rw,gid=100,uid=1000,auto 0 0
这样就能够自动挂载了。
4. 卸载的话使用下面的命令：
sudo umount -f /mnt/shared
Starting make in the src directory.
If there are problems, cd to the src directory and run make there
cd src && make first
make[1]: Entering directory `/home/wangqun/vim72/src'
mkdir objects
CC="gcc -Iproto -DHAVE_CONFIG_H -I/usr/lib/ruby/1.8/i486-linux " srcdir=. sh ./osdef.sh
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/buffer.o buffer.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/charset.o charset.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/diff.o diff.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/digraph.o digraph.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/edit.o edit.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/eval.o eval.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/ex_cmds.o ex_cmds.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/ex_cmds2.o ex_cmds2.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/ex_docmd.o ex_docmd.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/ex_eval.o ex_eval.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/ex_getln.o ex_getln.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/fileio.o fileio.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/fold.o fold.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/getchar.o getchar.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/hardcopy.o hardcopy.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/hashtab.o hashtab.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/if_cscope.o if_cscope.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/if_xcmdsrv.o if_xcmdsrv.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/main.o main.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/mark.o mark.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/memfile.o memfile.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/memline.o memline.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/menu.o menu.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/message.o message.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/misc1.o misc1.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/misc2.o misc2.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/move.o move.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/mbyte.o mbyte.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/normal.o normal.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/ops.o ops.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/option.o option.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/os_unix.o os_unix.c
creating auto/pathdef.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/pathdef.o auto/pathdef.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/popupmnu.o popupmnu.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/quickfix.o quickfix.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/regexp.o regexp.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/screen.o screen.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/search.o search.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/spell.o spell.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/syntax.o syntax.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/tag.o tag.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/term.o term.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/ui.o ui.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/undo.o undo.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/window.o window.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/if_ruby.o if_ruby.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/netbeans.o netbeans.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux version.c -o objects/version.o
gcc -L. -Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic -L/usr/local/lib -o vim objects/buffer.o objects/charset.o objects/diff.o objects/digraph.o objects/edit.o objects/eval.o objects/ex_cmds.o objects/ex_cmds2.o objects/ex_docmd.o objects/ex_eval.o objects/ex_getln.o objects/fileio.o objects/fold.o objects/getchar.o objects/hardcopy.o objects/hashtab.o objects/if_cscope.o objects/if_xcmdsrv.o objects/main.o objects/mark.o objects/memfile.o objects/memline.o objects/menu.o objects/message.o objects/misc1.o objects/misc2.o objects/move.o objects/mbyte.o objects/normal.o objects/ops.o objects/option.o objects/os_unix.o objects/pathdef.o objects/popupmnu.o objects/quickfix.o objects/regexp.o objects/screen.o objects/search.o objects/spell.o objects/syntax.o objects/tag.o objects/term.o objects/ui.o objects/undo.o objects/window.o objects/if_ruby.o objects/netbeans.o objects/version.o -lm -lncurses -lnsl -lruby1.8 -lpthread -ldl -lcrypt -lm
link.sh: OK, linking works, let's try removing a few libraries.
link.sh: See auto/link.log for details.
link.sh: Trying to remove the nsl library...
link.sh: We don't need the nsl library!
link.sh: Trying to remove the dl library...
link.sh: We don't need the dl library!
link.sh: Trying to remove the pthread library...
link.sh: We don't need the pthread library!
link.sh: Trying to remove the m library...
link.sh: We don't need the m library!
link.sh: Trying to remove the crypt library...
link.sh: We don't need the crypt library!
make[2]: Entering directory `/home/wangqun/vim72/src'
creating auto/pathdef.c
gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -I/usr/lib/ruby/1.8/i486-linux -o objects/pathdef.o auto/pathdef.c
make[2]: Leaving directory `/home/wangqun/vim72/src'
link.sh: Using auto/link.sed file to remove a few libraries
gcc -L. -Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic -L/usr/local/lib -o vim objects/buffer.o objects/charset.o objects/diff.o objects/digraph.o objects/edit.o objects/eval.o objects/ex_cmds.o objects/ex_cmds2.o objects/ex_docmd.o objects/ex_eval.o objects/ex_getln.o objects/fileio.o objects/fold.o objects/getchar.o objects/hardcopy.o objects/hashtab.o objects/if_cscope.o objects/if_xcmdsrv.o objects/main.o objects/mark.o objects/memfile.o objects/memline.o objects/menu.o objects/message.o objects/misc1.o objects/misc2.o objects/move.o objects/mbyte.o objects/normal.o objects/ops.o objects/option.o objects/os_unix.o objects/pathdef.o objects/popupmnu.o objects/quickfix.o objects/regexp.o objects/screen.o objects/search.o objects/spell.o objects/syntax.o objects/tag.o objects/term.o objects/ui.o objects/undo.o objects/window.o objects/if_ruby.o objects/netbeans.o objects/version.o -lncurses -lruby1.8 -lm
link.sh: Linked fine with a few libraries removed
cd xxd; CC="gcc" CFLAGS=" -g -O2" \
make -f Makefile
make[2]: Entering directory `/home/wangqun/vim72/src/xxd'
gcc -g -O2 -DUNIX -o xxd xxd.c
make[2]: Leaving directory `/home/wangqun/vim72/src/xxd'
make[1]: Leaving directory `/home/wangqun/vim72/src'