ubuntu22.04安装ruby2.7遇到的坑(rbenv方式)

确认系统版本:

root@fv-az392-322:/tmp# cat /etc/os-release 
PRETTY_NAME="Ubuntu 22.04.2 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.2 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy
root@fv-az392-322:/tmp#

确认ruby版本:

root@fv-az392-322:/tmp# ruby -v
ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux-gnu]
root@fv-az392-322:/tmp# 

安装rbenv:

apt-get install -y rbenv;

确认rbenv版本:

root@fv-az392-322:/tmp# rbenv -v
rbenv 1.1.2
root@fv-az392-322:/tmp#

安装openssl1.0(直接安装是不行的,先添加ppa库):

sudo apt-add-repository -y ppa:rael-gc/rvm;\
sudo apt update -y;




apt-get install -y  libssl1.0-dev;\
openssl version -d;

接下来执行如下命令:

eval "$(rbenv init -)";

rbenv versions ;\
rbenv version ;\
rbenv install --list  | grep 2.7;

root@fv-az392-322:/tmp# eval "$(rbenv init -)"

rbenv versions ;\
rbenv version ;\
rbenv install --list  | grep 2.7;
* system (set by /.rbenv/version)
system (set by /.rbenv/version)
1.8.6-p287
2.0.0-p247
2.2.7
2.7.0-dev
2.7.0-preview1
2.7.0-preview2
2.7.0-preview3
2.7.0-rc1
2.7.0-rc2
2.7.0
2.7.1
jruby-9.2.7.0
rbx-2.2.7
rbx-2.7
rbx-2.71828182
root@fv-az392-322:/tmp# 

我们选择2.7.1的版本,直接安装:

rbenv install 2.7.1

root@fv-az392-322:/tmp# rbenv install 2.7.1
Downloading ruby-2.7.1.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.1.tar.bz2
Installing ruby-2.7.1...
Installed ruby-2.7.1 to /.rbenv/versions/2.7.1

root@fv-az392-322:/tmp# 

试一试看看版本号:

rbenv global 2.7.1;
eval "$(rbenv init -)";
rbenv shell 2.7.1;
rbenv local 2.7.1;
ruby -v

root@fv-az392-322:/tmp# rbenv global 2.7.1;
eval "$(rbenv init -)";
rbenv shell 2.7.1;
ruby -v
ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-linux]
root@fv-az392-322:/tmp# 

最后一步:

cd /tmp;

gem -v;which gem;
rbenv rehash;
which gem;gem -v;

sudo gem install winrm winrm-fs colorize stringio;\
sudo gem install evil-winrm ;
evil-winrm -h;

还是失败,虽然ruby是2.7,但是gem路径不太对,还是用rvm的方式吧

/.rbenv/versions/2.7.1/bin/gem install winrm winrm-fs colorize stringio;
/.rbenv/versions/2.7.1/bin/gem install evil-winrm ;

/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/evil-winrm-3.4/evil-winrm.rb -h

root@fv-az618-84:/tmp# rbenv install 2.7.1
Downloading ruby-2.7.1.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.1.tar.bz2
Installing ruby-2.7.1...
Installed ruby-2.7.1 to /.rbenv/versions/2.7.1

root@fv-az618-84:/tmp# gem -v;which gem;
3.3.5
/.rbenv/shims/gem
root@fv-az618-84:/tmp# 
root@fv-az618-84:/tmp# ruby -v
ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux-gnu]
root@fv-az618-84:/tmp# 
root@fv-az618-84:/tmp# 
rbenv global 2.7.1;
eval "$(rbenv init -)";
rbenv shell 2.7.1;
rbenv local 2.7.1;
ruby -v
ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-linux]
root@fv-az618-84:/tmp# 
root@fv-az618-84:/tmp# 
root@fv-az618-84:/tmp# gem -v;which gem;
3.1.2
/.rbenv/shims/gem
root@fv-az618-84:/tmp# 

报的错误是这个:

oot@fv-az618-84:/tmp# evil-winrm -h;
/var/lib/gems/3.0.0/gems/evil-winrm-3.4/evil-winrm.rb:56:in `<top (required)>': undefined method `+' for nil:NilClass (NoMethodError)
	from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /var/lib/gems/3.0.0/gems/evil-winrm-3.4/bin/evil-winrm:3:in `<top (required)>'
	from /usr/local/bin/evil-winrm:25:in `load'
	from /usr/local/bin/evil-winrm:25:in `<main>'
root@fv-az618-84:/tmp# 

备忘录:

#/usr/include/openssl/ssl.h:36,
 
#ossl_hmac.c:57:5: warning: 'HMAC_CTX_new' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]

grep  ssl.h  /tmp/ruby-build.20230415141611.90255.log

root@fv-az618-84:/tmp# rbenv   shims 
/.rbenv/shims/bundle
/.rbenv/shims/bundler
/.rbenv/shims/erb
/.rbenv/shims/gem
/.rbenv/shims/irb
/.rbenv/shims/racc
/.rbenv/shims/racc2y
/.rbenv/shims/rake
/.rbenv/shims/rdoc
/.rbenv/shims/ri
/.rbenv/shims/ruby
/.rbenv/shims/y2racc
root@fv-az618-84:/tmp#