centos7 redis requires Ruby version -= 2.2.2 问题解决
# gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 gpg: keyring `/root/.gnupg/secring.gpg' createdgpg: requesting key D39DC0E3 from hkp server keys.gnupg.net
gpg: /root/.gnupg/trustdb.gpg: trustdb created
gpg: key D39DC0E3: public key "Michal Papis (RVM signing) " imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1(RSA: 1)
#\curl -sSL https://get.rvm.io | bash -s stable
Downloading https://github.com/rvm/rvm/archive/1.29.3.tar.gz
curl: (52) Empty reply from server
Could not download 'https://github.com/rvm/rvm/archive/1.29.3.tar.gz'.
curl returned status '52'.
Downloading https://bitbucket.org/mpapis/rvm/get/1.29.3.tar.gz
Downloading https://bitbucket.org/mpapis/rvm/downloads/1.29.3.tar.gz.asc
gpg: Signature made Mon 11 Sep 2017 04:59:29 AM CST using RSA key> gpg: Good signature from "Michal Papis (RVM signing) "
gpg: aka "Michal Papis "
gpg: aka "[jpeg image of> 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 2A170311 3804 BB82 D39D C0E3
Subkey fingerprint: 62C9 E5F4 DA30 0D94 AC36166B E206 C29F BF04 FF17
GPG verified '/usr/local/rvm/archives/rvm-1.29.3.tgz'
Creating group 'rvm'
Installing RVM to /usr/local/rvm/
Installation of RVM in /usr/local/rvm/ is almost complete:
* First you need to add all users that will be using rvm to 'rvm' group,
and logout - login again, anyone using rvm will be operating with `umask u=rwx,g=rwx,o=rx`.
* To start using RVM you need to run `source /etc/profile.d/rvm.sh`
in all your open shell windows, in rare cases you need to reopen all shell windows.
# source /etc/profile.d/rvm.sh
# rvm -v
rvm 1.29.3 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin
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