gem update --system
修改完gem sources之后，进行gem update；
gem update --system
之后的输出：
C:Sites est01>gem sources -l *** CURRENT SOURCES *** http://gems.ruby-china.org/ C:Sites est01>gem -v 2.5.2 C:Sites est01>gem update --system Updating rubygems-update Fetching: rubygems-update-2.6.7.gem (100%) Successfully installed rubygems-update-2.6.7 Parsing documentation for rubygems-update-2.6.7 Installing ri documentation for rubygems-update-2.6.7 Installing darkfish documentation for rubygems-update-2.6.7 Done installing documentation for rubygems-update after 46 seconds Parsing documentation for rubygems-update-2.6.7 Done installing documentation for rubygems-update after 0 seconds Installing RubyGems 2.6.7 RubyGems 2.6.7 installed Parsing documentation for rubygems-2.6.7 Installing ri documentation for rubygems-2.6.7 === 2.6.7 / 2016-09-26 Bug fixes: * Install native extensions in the correct location when using the `--user-install` flag. Pull request #1683 by Noah Kantrowitz. * When calling `Gem.sources`, load sources from `configuration` if present, else use the default sources. Pull request #1699 by Luis Sagastume. * Fail gracefully when attempting to redirect without a Location. Pull request #1711 by Samuel Giddins. * Update vendored Molinillo to 0.5.1. Pull request #1714 by Samuel Giddins. === 2.6.6 / 2016-06-22 Bug fixes: * Sort installed versions to make sure we install the latest version when running `gem update --system`. As a one-time fix, run `gem update --system=2.6.6`. Pull request #1601 by David Radcliffe. === 2.6.5 / 2016-06-21 Minor enhancements: * Support for unified Integer in Ruby 2.4. Pull request #1618 by SHIBATA Hiroshi. * Update vendored Molinillo to 0.5.0 for performance improvements. Pull request #1638 by Samuel Giddins. Bug fixes: * Raise an explicit error if Signer#sign is called with no certs. Pull request #1605 by Daniel Berger. * Update `update_bundled_ca_certificates` utility script for directory nesting. Pull request #1583 by James Wen. * Fix broken symlink support in tar writer (+ fix broken test). Pull request #1578 by Cezary Baginski. * Remove extension directory before (re-)installing. Pull request #1576 by Jeremy Hinegardner. * Regenerate test CA certificates with appropriate extensions. Pull request #1611 by rhenium. * Rubygems does not terminate on failed file lock when not superuser. Pull request #1582 by Ellen Marie Dash. * Fix tar headers with a 101 character name. Pull request #1612 by Paweł Tomulik. * Add Gem.platform_defaults to allow implementations to override defaults. Pull request #1644 by Charles Oliver Nutter. * Run Bundler tests on TravisCI. Pull request #1650 by Samuel Giddins. === 2.6.4 / 2016-04-26 Minor enhancements: * Use Gem::Util::NULL_DEVICE instead of hard coded strings. Pull request #1588 by Chris Charabaruk. * Use File.symlink on MS Windows if supported. Pull request #1418 by Nobuyoshi Nakada. Bug fixes: * Redact uri password from error output when gem fetch fails. Pull request #1565 by Brian Fletcher. * Suppress warnings. Pull request #1594 by Nobuyoshi Nakada. * Escape user-supplied content served on web pages by `gem server` to avoid potential XSS vulnerabilities. Samuel Giddins. === 2.6.3 / 2016-04-05 Minor enhancements: * Lazily calculate Gem::LoadError exception messages. Pull request #1550 by Aaron Patterson. * New fastly cert. Pull request #1548 by David Radcliffe. * Organize and cleanup SSL certs. Pull request #1555 by James Wen. * [RubyGems] Make deprecation message for paths= more helpful. Pull request #1562 by Samuel Giddins. * Show default gems when using "gem list". Pull request #1570 by Luis Sagastume. Bug fixes: * Stub ordering should be consistent regardless of how cache is populated. Pull request #1552 by Aaron Patterson. * Handle cases when the @@stubs variable contains non-stubs. Pull request #1558 by Per Lundberg. * Fix test on Windows for inconsistent temp path. Pull request #1554 by Hiroshi Shirosaki. * Fix `Gem.find_spec_for_exe` picks oldest gem. Pull request #1566 by Shinichi Maeshima. * [Owner] Fallback to email and userid when owner email is missing. Pull request #1569 by Samuel Giddins. * [Installer] Handle nil existing executable. Pull request #1561 by Samuel Giddins. * Allow two digit version numbers in the tests. Pull request #1575 by unak. === 2.6.2 / 2016-03-12 Bug fixes: * Fix wrong version of gem activation for bin stub. Pull request #1527 by Aaron Patterson. * Speed up gem activation failures. Pull request #1539 by Aaron Patterson. * Fix platform sorting in the resolver. Pull request #1542 by Samuel E. Giddins. * Ensure we unlock the monitor even if try_activate throws. Pull request #1538 by Charles Oliver Nutter. === 2.6.1 / 2016-02-28 Bug fixes: * Ensure `default_path` and `home` are set for paths. Pull request #1513 by Aaron Patterson. * Restore but deprecate support for Array values on `Gem.paths=`. Pull request #1514 by Aaron Patterson. * Fix invalid gem file preventing gem install from working. Pull request #1499 by Luis Sagastume. === 2.6.0 / 2016-02-26 Minor enhancements: * RubyGems now defaults the `gem push` to the gem's "allowed_push_host" metadata setting. Pull request #1486 by Josh Lane. * Update bundled Molinillo to 0.4.3. Pull request #1493 by Samuel E. Giddins. * Add version option to gem open command. Pull request #1483 by Hrvoje Šimić. * Feature/add silent flag. Pull request #1455 by Luis Sagastume. * Allow specifying gem requirements via env variables. Pull request #1472 by Samuel E. Giddins. Bug fixes: * RubyGems now stores `gem push` credentials under the host you signed-in for. Pull request #1485 by Josh Lane. * Move `coding` location to first line. Pull request #1471 by SHIBATA Hiroshi. * [PathSupport] Handle a regexp path separator. Pull request #1469 by Samuel E. Giddins. * Clean up the PathSupport object. Pull request #1094 by Aaron Patterson. * Join with File::PATH_SEPARATOR in Gem.use_paths. Pull request #1476 by Samuel E. Giddins. * Handle when the gem home and gem path arent set in the config file. Pull request #1478 by Samuel E. Giddins. * Terminate TimeoutHandler. Pull request #1479 by Nobuyoshi Nakada. * Remove redundant cache. Pull request #1482 by Eileen M. Uchitelle. * Freeze `Gem::Version@segments` instance variable. Pull request #1487 by Ben Dean. * Gem cleanup is trying to uninstall gems outside GEM_HOME and reporting an error after it tries. Pull request #1353 by Luis Sagastume. * Avoid duplicated sources. Pull request #1489 by Luis Sagastume. * Better description for quiet flag. Pull request #1491 by Luis Sagastume. * Raise error if find_by_name returns with nil. Pull request #1494 by Zoltán Hegedüs. * Find_files only from loaded_gems when using gemdeps. Pull request #1277 by Michal Papis. === 2.5.2 / 2016-01-31 Bug fixes: * Fix memoization of Gem::Version#prerelease? Pull request #1125 by Matijs van Zuijlen. * Handle trailing colons in GEM_PATH, by Damien Robert. * Improve the Gemfile `gemspec` method, fixing #1204 and #1033. Pull request #1276 by Michael Papis. * Warn only once when a gemspec license is invalid. Pull request #1414 by Samuel E. Giddins. * Check for exact constants before using them, fixing Ruby bug #11940. Pull request #1438 by Nobuyoshi Nakada. * Fix building C extensions on Ruby 1.9.x on Windows. Pull request #1453 by Mari e Markwell. * Handle symlinks containing ".." correctly. Pull request #1457 by Samuel E. Giddins. Minor enhancements: * Add `--no-rc` flag, which skips loading `.gemrc`. Pull request #1329 by Luis Sagastume. * Allow basic auth to be excluded from `allowed_push_host`. By Josh Lane. * Add `gem list --exact`, which finds gems by string match instead of regex. Pul l request #1344 by Luis Sagastume. * Suggest alternatives when gem license is unknown. Pull request #1443 by Samuel E. Giddins. * Print a useful error if a binstub expects a newer version of a gem than is installed. Pull request #1407 by Samuel E. Giddins. * Allow the (supported) s3:// scheme to be used with `--source`. Pull request #1416 by Dave Adams. * Add `--[no-]post-install-message` to `install` and `update`. Pull request #116 2 by Josef Šimánek. * Add `--host` option to `yank`, providing symmetry with `pull`. Pull request #1361 by Mike Virata-Stone. * Update bundled Molinillo to 0.4.1. Pull request #1452 by Samuel E. Giddins. * Allow calling `build` without '.gemspec'. Pull request #1454 by Stephen Blackstone. * Add support for `source` option on gems in Gemfile. Pull request #1355 by Michael Papis. * Function correctly when string literals are frozen on Ruby 2.3. Pull request #1408 by Samuel E. Giddins. ------------------------------------------------------------------------------ RubyGems installed the following executables: C:/RailsInstaller/Ruby2.3.0/bin/gem Ruby Interactive (ri) documentation was installed. ri is kind of like man pages for ruby libraries. You may access it like this: ri Classname ri Classname.class_method ri Classname#instance_method If you do not wish to install this documentation in the future, use the --no-document flag, or set it as the default in your ~/.gemrc file. See 'gem help env' for details. RubyGems system software updated C:Sites est01>gem -v 2.6.7