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Im trying to install ruby 2.2.2 in my arch machine. When I run rvm install, I get the following error. Tried several times. Even removed rvm and re-installed. Still the same issue.

○  rvm install 2.2.2
Searching for binary rubies, this might take some time.
No binary rubies available for: arch/libc-2.21/x86_64/ruby-2.2.2.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for arch.
Requirements installation successful.
Installing Ruby from source to: /home/pubudu/.rvm/rubies/ruby-2.2.2, this may take a while depending on your cpu(s)...
ruby-2.2.2 - #downloading ruby-2.2.2, this may take a while depending on your connection...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                             Dload  Upload   Total   Spent    Left  Speed
100 12.6M  100 12.6M    0     0   323k      0  0:00:40  0:00:40 --:--:--  340k
No checksum for downloaded archive, recording checksum in user configuration.
ruby-2.2.2 - #extracting ruby-2.2.2 to /home/pubudu/.rvm/src/ruby-2.2.2 - please wait
ruby-2.2.2 - #configuring - please wait
ruby-2.2.2 - #post-configuration - please wait
ruby-2.2.2 - #compiling - please wait
ruby-2.2.2 - #installing - please wait
Error running '__rvm_make install',
showing last 15 lines of /home/pubudu/.rvm/log/1429407987_ruby-2.2.2/install.log
                          rake 10.4.2
                          rdoc 4.2.0
installing bundle gems:       /home/pubudu/.rvm/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0 (build_info, cache, doc, extensions, gems, specifications)
                          test-unit-3.0.8.gem
                          minitest-5.4.3.gem
                          power_assert-0.2.2.gem
./tool/rbinstall.rb:728:in `chmod': Operation not permitted @ chmod_internal - / (Errno::EPERM)
    from ./tool/rbinstall.rb:728:in `block in <main>'
    from ./tool/rbinstall.rb:757:in `call'
    from ./tool/rbinstall.rb:757:in `block in <main>'
    from ./tool/rbinstall.rb:754:in `each'
    from ./tool/rbinstall.rb:754:in `<main>'
uncommon.mk:253: recipe for target 'do-install-nodoc' failed
make: *** [do-install-nodoc] Error 1
+__rvm_make:0> return 2
There has been an error while running make install. Halting the installation.
                Master and Head appears to be the same. In my case I switched from Latest to Master and it helped.
– sekrett
                Mar 28, 2016 at 17:16
export warnflags=-Wno-error=implicit-function-declaration
export optflags="-w"
rvm install "ruby-2.6.3" --with-out-ext=fiddle
Same issue resolved by above commands
                As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.
– Community
                Feb 8 at 18:39
        
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