# Igems update --system, \[BUG\] invalid exec\_format "ir", no %s **URL:** \ **Category:** IronRuby\ **Created:** [June 25, 2010, 7:35pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719 "2010-06-25T19:35:01Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![bfsog](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/71c47a/32.png) [@bfsog](https://www.ruby-forum.com/u/bfsog)\ **Post date:** [June 25, 2010, 7:35pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719/1 "2010-06-25T19:35:01Z")
Hi all, Ruby n00b here. Longtime Windows/.NET guy primarily. Trying to get IronRuby and RoR up and running on Windows 7 x64 with IIS7.5, with .NET 4.0 installed along with the IronRuby 1.0v4 release. Running into the RubyGems igem update --system issue with the response of: [BUG] invalid exec\_format “ir”, no %s I’ve seen Marcin Obel’s/Kevin R.'s fix: > I’ve tried it, but I still get the error. I’ve put that snippet in an ironruby.rb under ruby\1.8, ruby\1.8\gems\rubygems\default, site\_ruby\1.8\gems\rubygems and site\_ruby\1.8\rubygems\defaults, all to no avail. Am I missing something? Doing something obviously wrong? Thanks in advance- –Andy Badera ---
**Author:** ![bfsog](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/71c47a/32.png) [@bfsog](https://www.ruby-forum.com/u/bfsog)\ **Post date:** [June 25, 2010, 8:26pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719/2 "2010-06-25T20:26:09Z")
## [http://hotgazpacho.org/2010/05/ironruby-gem-update-system/](http://hotgazpacho.org/2010/05/ironruby-gem-update-system/) [http://hotgazpacho.org/2010/05/ironruby-gem-update-system/](http://hotgazpacho.org/2010/05/ironruby-gem-update-system/) Will G. > **[hotgazpacho](http://hotgazpacho.org/)** ---
**Author:** ![bfsog](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/71c47a/32.png) [@bfsog](https://www.ruby-forum.com/u/bfsog)\ **Post date:** [June 25, 2010, 8:28pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719/3 "2010-06-25T20:28:23Z")
Will G. wrote: > ## [http://hotgazpacho.org/2010/05/ironruby-gem-update-system/](http://hotgazpacho.org/2010/05/ironruby-gem-update-system/) [http://hotgazpacho.org/2010/05/ironruby-gem-update-system/](http://hotgazpacho.org/2010/05/ironruby-gem-update-system/) > > Will G. > [http://hotgazpacho.org/](http://hotgazpacho.org/) Hi Will, I’d tried your version as well, same result. I’ll doublecheck now though … –ab ---
**Author:** ![bfsog](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/71c47a/32.png) [@bfsog](https://www.ruby-forum.com/u/bfsog)\ **Post date:** [June 25, 2010, 8:33pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719/4 "2010-06-25T20:33:20Z")
Andrew Badera wrote: > Will G. wrote: > > > ## [http://hotgazpacho.org/2010/05/ironruby-gem-update-system/](http://hotgazpacho.org/2010/05/ironruby-gem-update-system/) [http://hotgazpacho.org/2010/05/ironruby-gem-update-system/](http://hotgazpacho.org/2010/05/ironruby-gem-update-system/) > > > > Will G. > > [http://hotgazpacho.org/](http://hotgazpacho.org/) > > Hi Will, > > I’d tried your version as well, same result. I’ll doublecheck now though > … > > –ab Yeah, I put it there, with your code Will, and still had the same result unfortunately. I’m a little curious, IronRuby now ships with .NET 4.0 I believe, which I have installed. Any chance I’m kicking off my explicitly-installed igem but getting the wrong ir down the line? “where ir” seems to point to the right ir.exe … ---
**Author:** ![bfsog](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/71c47a/32.png) [@bfsog](https://www.ruby-forum.com/u/bfsog)\ **Post date:** [June 25, 2010, 8:58pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719/5 "2010-06-25T20:58:21Z")
I don’t use the i-whatever batch files. Untill this fix, I just did ir -S whatever – Will G. [http://hotgazpacho.org/](http://hotgazpacho.org/) ---
**Author:** ![bfsog](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/71c47a/32.png) [@bfsog](https://www.ruby-forum.com/u/bfsog)\ **Post date:** [June 25, 2010, 9:07pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719/6 "2010-06-25T21:07:02Z")
Will G. wrote: > I don’t use the i-whatever batch files. Untill this fix, I just did > > ir -S whatever > > – > Will G. > [http://hotgazpacho.org/](http://hotgazpacho.org/) Forgive me for not being super knowledgeable about syntax, but what do I need to pass it as a param for the rubygems package? I’ve downloaded 1.3.7 explicitly, but not sure what context to use ir -S in … ---
**Author:** ![bfsog](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/71c47a/32.png) [@bfsog](https://www.ruby-forum.com/u/bfsog)\ **Post date:** [June 25, 2010, 10:08pm UTC](https://www.ruby-forum.com/t/igems-update-system-bug-invalid-exec-format-ir-no-s/190719/7 "2010-06-25T22:08:36Z")
If you put the file I referenced in the correct location, you can then just: ir -S gem update --system After that, the gem and gem.bat files in %IronRubyRoot%\bin get re-written with the correct path to the correct interpreter (as will any scripts installed by ruby gems AFTER this), so from then on, you can just: gem dosomething assuming %IronRubyRoot%\bin is in you path ahead of other Ruby binary directories. I use pik to manage this [GitHub - vertiginous/pik: Ruby version manager for Windows](http://github.com/vertiginous/pik) (pik is like rvm for Windows). – Will G. [http://hotgazpacho.org/](http://hotgazpacho.org/)