woei66

[root@ec2 ~]# more /usr/local/rvm/log/1520572663_ruby-2.4.2/gemset.wrappers.global.log
[2018-03-09 05:21:22] run_gem_wrappers_regenerate
run_gem_wrappers_regenerate ()
{
    gem_install gem-wrappers && gem wrappers regenerate || return $?
}
current path: /usr/local/rvm/src/ruby-2.4.2
GEM_HOME=/usr/local/rvm/gems/ruby-2.4.2@global
PATH=/usr/local/rvm/gems/ruby-2.4.2@global/bin:/usr/local/rvm/rubies/ruby-2.4.2/bin:/usr/local/rvm/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
GEM_PATH=/usr/local/rvm/gems/ruby-2.4.2@global

woei66

[root@ec2 ~]# rvm install ruby-2.4.2
Searching for binary rubies, this might take some time.
No binary rubies available for: unknown/libc-2.25/x86_64/ruby-2.4.2.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for unknown.
Install:
press any key to continue
Install: build-essential libreadline zlib1g libyaml libc6 libgdbm ncurses
press any key to continue
Requirements installation successful.