错误是这样的：
$ curl -L get.rvm.io | bash -s stable –ruby % Total % Received % Xferd Average Speed Time TimeTime CurrentDload Upload Total Spent Left Speed100 184 100 184 00300 0:00:06 0:00:06 –:–:– 40100 22721 100 22721 00 18450 0:00:12 0:00:12 –:–:– 6170Downloading https://github.com/rvm/rvm/archive/1.26.11.tar.gzDownloading https://github.com/rvm/rvm/releases/download/1.26.11/1.26.11.tar.gz.ascgpg: Signature made Tue 31 Mar 2015 05:52:13 CST using RSA key ID BF04FF17gpg: Can't check signature: public key not foundWarning, RVM 1.26.0 introduces signed releases and automated check of signatures when GPG software found.Assuming you trust Michal Papis import the mpapis public key (downloading the signatures).GPG signature verification failed for '/home/charles/.rvm/archives/rvm-1.26.11.tgz' – 'https://github.com/rvm/rvm/releases/download/1.26.11/1.26.11.tar.gz.asc'!try downloading the signatures:gpg –keyserver hkp://keys.gnupg.net –recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3or if it fails:command curl -sSL https://rvm.io/mpapis.asc | gpg –import -the key can be compared with:https://rvm.io/mpapis.aschttps://keybase.io/mpapis解决方法是:$ gpg –keyserver hkp://keys.gnupg.net –recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3gpg: requesting key D39DC0E3 from hkp server keys.gnupg.netgpg: /home/charles/.gnupg/trustdb.gpg: trustdb createdgpg: key D39DC0E3: public key "Michal Papis (RVM signing) <mpapis@gmail.com>" importedgpg: no ultimately trusted keys foundgpg: Total number processed: 1gpg:imported: 1 (RSA: 1)然后，，重新执行：curl -L get.rvm.io | bash -s stable –ruby$ curl -L get.rvm.io | bash -s stable –ruby % Total % Received % Xferd Average Speed Time TimeTime CurrentDload Upload Total Spent Left Speed100 184 100 184 00 2290 –:–:– –:–:– –:–:– 229100 22721 100 22721 00 212500 0:00:01 0:00:01 –:–:– 6802kDownloading https://github.com/rvm/rvm/archive/1.26.11.tar.gzDownloading https://github.com/rvm/rvm/releases/download/1.26.11/1.26.11.tar.gz.ascgpg: Signature made Tue 31 Mar 2015 05:52:13 CST using RSA key ID BF04FF17gpg: Good signature from "Michal Papis (RVM signing) <mpapis@gmail.com>"gpg: WARNING: This key is not certified with a trusted signature!gpg:There is no indication that the signature belongs to the owner.Primary key fingerprint: 409B 6B17 96C2 7546 2A17 0311 3804 BB82 D39D C0E3Subkey fingerprint: 62C9 E5F4 DA30 0D94 AC36 166B E206 C29F BF04 FF17GPG verified '/home/charles/.rvm/archives/rvm-1.26.11.tgz'Installing RVM to /home/charles/.rvm/Adding rvm PATH line to /home/charles/.profile /home/charles/.mkshrc /home/charles/.bashrc /home/charles/.zshrc.Adding rvm loading line to /home/charles/.profile /home/charles/.bash_profile /home/charles/.zlogin.Installation of RVM in /home/charles/.rvm/ is almost complete: * To start using RVM you need to run `source /home/charles/.rvm/scripts/rvm`in all your open shell windows, in rare cases you need to reopen all shell windows.# ,## Thank you for using RVM!# We sincerely hope that RVM helps to make your life easier and more enjoyable!!!## ~Wayne, Michal & team.In case of problems: and https://twitter.com/rvm_iorvm 1.26.11 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]Searching for binary rubies, this might take some time.No binary rubies available for: ubuntu/14.04/i386/ruby-2.2.1.Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.Checking requirements for ubuntu.Installing requirements for ubuntu.Updating system………..Installing required packages: libreadline6-dev, libyaml-dev, libsqlite3-dev, sqlite3, libgdbm-dev, bison……..Requirements installation successful.Found user configured '-j' flag in 'rvm_make_flags', please note that RVM can detect number of CPU threads and set the '-j' flag automatically if you do not set it.Installing Ruby from source to: /home/charles/.rvm/rubies/ruby-2.2.1, this may take a while depending on your cpu(s)…ruby-2.2.1 – #downloading ruby-2.2.1, this may take a while depending on your connection… % Total % Received % Xferd Average Speed Time TimeTime CurrentDload Upload Total Spent Left Speed100 12.7M 100 12.7M 00 108k0 0:02:00 0:02:00 –:–:– 130kruby-2.2.1 – #extracting ruby-2.2.1 to /home/charles/.rvm/src/ruby-2.2.1….ruby-2.2.1 – #applying patch /home/charles/.rvm/patches/ruby/2.2.1/fix_installing_bundled_gems.patch.ruby-2.2.1 – #configuring…………………………………………………ruby-2.2.1 – #post-configuration..ruby-2.2.1 – #compiling…………………………………………………………………….ruby-2.2.1 – #installing……………………….ruby-2.2.1 – #making binaries executable..ruby-2.2.1 – #downloading rubygems-2.4.8 % Total % Received % Xferd Average Speed Time TimeTime CurrentDload Upload Total Spent Left Speed100 437k 100 437k 00 522k0 –:–:– –:–:– –:–:– 522kNo checksum for downloaded archive, recording checksum in user configuration.ruby-2.2.1 – #extracting rubygems-2.4.8….ruby-2.2.1 – #removing old rubygems………ruby-2.2.1 – #installing rubygems-2.4.8………………….ruby-2.2.1 – #gemset created /home/charles/.rvm/gems/ruby-2.2.1@globalruby-2.2.1 – #importing gemset /home/charles/.rvm/gemsets/global.gems………………………………………..ruby-2.2.1 – #generating global wrappers……..ruby-2.2.1 – #gemset created /home/charles/.rvm/gems/ruby-2.2.1ruby-2.2.1 – #importing gemsetfile /home/charles/.rvm/gemsets/default.gems evaluated to empty gem listruby-2.2.1 – #generating default wrappers……..ruby-2.2.1 – #adjusting #shebangs for (gem irb erb ri rdoc testrb rake).Install of ruby-2.2.1 – #complete Ruby was built without documentation, to build it run: rvm docs generate-riCreating alias default for ruby-2.2.1… * To start using RVM you need to run `source /home/charles/.rvm/scripts/rvm`in all your open shell windows, in rare cases you need to reopen all shell windows.
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