Go to CentOS and install Rvm+ruby+rails

CentOS6.2 Install Rvm+ruby+rails (1) RVM The official website should be revised once,
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1. Curl-l https://get.rvm.io | bash-s stable

Download and install the RVM stable version. Not using Bash < < (Curl-s HTTPS://RVM.BEGINRESCUEEND.COM/INSTALL/RVM), remember.
Soon after installing RVM, re-login to a new SSH, using RVM-V to check the version.

(2) Install some libraries, compile and install other software or libraries will be used when
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1. Yum Install zlib zlib-devel sqlite-devel

The final message is roughly as follows:
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2. ...... kb/s | 124 KB xx:
4. Running Rpm_check_debug
6. Running Transaction Test
8. Transaction Test Succeeded
10. Running Transaction
12. installing:sqlite-devel-3.6.    20-1.el6.i686 1/2
14. installing:zlib-devel-1.2.    3-27.el6.i686 2/2
18. Installed:
20. sqlite-devel.i686 0:3.6. 20-1.el6 zlib-devel.i686 0:1.2. 3-27.el6
24. complete!

(3) It is strongly recommended that you install OpenSSL before installing Ruby, or you may have to reinstall Ruby if you want to use SSL later.
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1. RVM Pkg Install OpenSSL

After the installation is complete, there is the following information, if the installation error, there is also a prompt notice you where to view the log.
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1. [Root@localhost config]# rvm pkg Install OpenSSL
2. Fetching openssl-0.9.8t.tar.gz to/usr/local/rvm/archives
3. Extracting openssl-0.9.8t.tar.gz to/usr/local/rvm/src
4. Configuring OpenSSL in/usr/local/rvm/src/openssl-0.9.8t.
5. Compiling OpenSSL in/usr/local/rvm/src/openssl-0.9.8t.
6. Installing OpenSSL TO/USR/LOCAL/RVM/USR

Different operating systems or users, the installation location may not be the same.


(4) Specify the OpenSSL location to install Ruby
Tip There are some libraries that may need to be installed, so make a decision as to whether you need yum to install some libraries since.
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1. Yum install-y gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel openssl-devel make bzip2 A utoconf automake Libtool Bison iconv-devel

You can install some of the above libraries before you install Ruby
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1. RVM install 1.9. 2--with-openssl-dir=/usr/local/rvm/usr

After I read the message, Q introduced a hint that no other dependent libraries were installed and continued to install Ruby.
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2. ......
4. Press ' Q ' to continue.
6. Fetching yaml-0.1. 4.tar.gz to/usr/local/rvm/archives
8. % total% Received% xferd Average speed Time Time current
10. Dload Upload Total spent
12. 460k 460k 0 0 29602 0 0:xx: 0:xx:--:--:-- 34256
14. Extracting yaml-0.1. 4.tar.gz to/usr/local/rvm/src
16. Configuring Yaml in/usr/local/rvm/src/yaml-0.1. 4.
18. Compiling Yaml in/usr/local/rvm/src/yaml-0.1. 4.
20. Installing Yaml TO/USR/LOCAL/RVM/USR
22. Installing Ruby from Source to:/usr/local/rvm/rubies/ruby-1.9. 2-p320, this could take a while the depending on your CPU (s) ...
26. ruby-1.9. 2-p320-#fetching
28. ruby-1.9. 2-p320-#downloading ruby-1.9. 2-p320, this is a while depending on your connection ...
30. % total% Received% xferd Average speed Time Time current
32. Dload Upload Total spent
34. 8770k 8770k 0 0 44230 0 0: from: 0::--:--:-- 55436
36. ruby-1.9. 2-p320-#extracting ruby-1.9. 2-p320 to/usr/local/rvm/src/ruby-1.9. 2-p320
38. ruby-1.9. 2-p320-#extracted to/usr/local/rvm/src/ruby-1.9. 2-p320
40. ruby-1.9. 2-p320-#configuring
42. ruby-1.9. 2-p320-#compiling
44. ruby-1.9. 2-p320-#installing
46. Retrieving rubygems-1.8. -
48. % total% Received% xferd Average speed Time Time current
50. Dload Upload Total spent
52. 371k 371k 0 0 38121 0 0:xx: 0:xx:--:--:-- 38064
54. Extracting rubygems-1.8. ...
56. Removing old Rubygems files ...
58. Installing rubygems-1.8. For ruby-1.9. 2-p320 ...
60. Installation of RubyGems completed successfully.
62. ruby-1.9.   2-p320-adjusting #shebangs for (Gem IRB erb ri rdoc testrb rake).
64. ruby-1.9. 2-p320-#importing default gemsets (/usr/local/rvm/gemsets/)
66. Install of ruby-1.9. 2-p320-#complete

(5) RVM use 1.9.2

(6) Gem install Rails
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2. fetching:i18n-0.6. 0.gem (100%)
4. fetching:multi_json-1.3. 6.gem (100%)
6. fetching:activesupport-3.2. 6.gem (100%)
8. fetching:builder-3.0. 0.gem (100%)
10. fetching:activemodel-3.2. 6.gem (100%)
12. fetching:rack-1.4. 1.gem (100%)
14. fetching:rack-cache-1.2.gem (100%)
16. fetching:rack-test-0.6. 1.gem (100%)
18. fetching:journey-1.0. 4.gem (100%)
20. fetching:hike-1.2. 1.gem (100%)
22. fetching:tilt-1.3. 3.gem (100%)
24. fetching:sprockets-2.1. 3.gem (100%)
26. fetching:erubis-2.7. 0.gem (100%)
28. fetching:actionpack-3.2. 6.gem (100%)
30. fetching:arel-3.0. 2.gem (100%)
32. fetching:tzinfo-0.3. 33.gem (100%)
34. fetching:activerecord-3.2. 6.gem (100%)
36. fetching:activeresource-3.2. 6.gem (100%)
38. fetching:mime-types-1.19.gem (100%)
40. fetching:polyglot-0.3. 3.gem (100%)
42. fetching:treetop-1.4. 10.gem (100%)
44. fetching:mail-2.4. 4.gem (100%)
46. fetching:actionmailer-3.2. 6.gem (100%)
48. fetching:rack-ssl-1.3. 2.gem (100%)
50. fetching:thor-0.15. 4.gem (100%)
52. fetching:json-1.7. 3.gem (100%)
54. Building native extensions. This could take a while ...
56. fetching:rdoc-3.12.gem (100%)
58. ......

Now that the installation is complete, verify it later.

Go to CentOS and install Rvm+ruby+rails