From: Felix Windt Date: 2007-09-16T06:24:53+09:00 Subject: Re: What Linux distribution to choose for learning Ruby and Rubyon Rails ------=_NextPart_000_0195_01C7F7A3.937D2290 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit > -----Original Message----- > From: forgottenwizard [mailto:phrexianreaper@hushmail.com] > Sent: Saturday, September 15, 2007 1:55 PM > To: ruby-talk ML > Subject: Re: What Linux distribution to choose for learning > Ruby and Rubyon Rails > > On 05:03 Sun 16 Sep , M. Edward (Ed) Borasky wrote: [...] > > It's probably *better* with Gentoo than most other distros and it's > > probably better with Ruby than some other packages with their own > > repositories, but unless the distro (or someone outside) has put a > > significant amount of effort into integration, you're right > ... if you > > want to run a bleeding edge Ruby and gems, you should nuke > whatever's on > > your distro, if anything, install everything in /usr/local > from source > > and from the gem repository, and lie to other packages > expecting to see > > /usr/bin/ruby when they install. [...] > > Fortunately, I didn't need to load Ruby or gems on this machine. Or > > stick with production stable tested configurations from the distro. > > > > > > Symlink should work for any /usr/bin/ruby issues if you install is > locally. > > But, on another note, isn't there a way to install gems for > Ruby that is > fairly automated but distro-independent? The only universal approach is to download the gem source, build it and install it - that should work anywhere. Then you can install any gem directly via "gem install", though in some cases you may need the standard build chain, plus any libraries required. The main problem with that approach is that pretty much all distributions do not officially support any custom installed packages outside the packet management system. You will either lose the official support channels (think SuSE or RHEL) for the software, may have a harder time getting community support or may run into difficulties when updating/upgrading as custom compilation is outside the packet management system. This may leave behind files in unexpected places, change directory permissions, change dependencies or library versions etc. That is most unfortunate as the server distributions in particular often ship software several versions out of date for security or stability reasons, which can result in feature loss or unfixed bugs - RHEL 4.5, for example, still has Ruby 1.8.1: # ruby -v ruby 1.8.1 (2003-12-25) [x86_64-linux-gnu] # cat /etc/redhat-release Red Hat Enterprise Linux ES release 4 (Nahant Update 5) # Depending on your environment, this may be impossible to circumvent - in shared server environments, you may not have the necessary permissions/tools available, at work policies or SLA requirements may prohibit any custom installations. At my job, we only use Ruby interally to the engineering group, so we can get away with customization. If it were used in production, we'd be using whatever the official channels provide as our SLA states having to stay 100% within vendor supported options. 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