# Rubygems/format (LoadError)

**URL:** <https://discourse.chef.io/t/rubygems-format-loaderror/3677>\
**Category:** Chef Infra (archive)\
**Created:** [February 26, 2013, 10:48pm UTC](https://discourse.chef.io/t/rubygems-format-loaderror/3677 "2013-02-26T22:48:55Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Vincent\_Jorgensen](https://avatars.discourse-cdn.com/v4/letter/v/e5b9ba/32.png) [@Vincent\_Jorgensen](https://discourse.chef.io/u/Vincent_Jorgensen)\
**Post date:** [February 26, 2013, 10:48pm UTC](https://discourse.chef.io/t/rubygems-format-loaderror/3677/1 "2013-02-26T22:48:55Z")

</div>

I updated three of my boxes to the latest rubygems and chef (11.4.0) and now I’m getting the following missing package error:

# chef-client

/usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:106:in `gem_original_require': no such file to load -- rubygems/format (LoadError) from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:106:in`require’  
from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/…/lib/chef/provider/package/rubygems.rb:34  
from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in`require’  
from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/…/lib/chef/providers.rb:60  
from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in`require’  
from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/…/lib/chef.rb:25  
from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in`require’  
from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/chef-client:23  
from /usr/bin/chef-client:23:in `load’  
from /usr/bin/chef-client:23

I’ve confirmed that I have rubygems/format.rb

# locate rubygems/format.rb

/usr/lib64/ruby/gems/1.8/gems/rubygems-update-1.8.24/lib/rubygems/format.rb

The question becomes, why isn’t chef able to find it?

Other specs that may or may not be helpful:  
ib/ruby/site\_ruby/1.8/rubygems  
14:46 Tue Feb 26 # uname -a  
Linux box.box 2.6.32-279.11.1.el6.x86\_64 #1 SMP Tue Oct 16 15:57:10 UTC 2012 x86\_64 x86\_64 x86\_64 GNU/Linux

# lsb\_release -a

LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch  
Distributor ID: CentOS  
Description: CentOS release 6.3 (Final)  
Release: 6.3  
Codename: Final

* * *

Vincent Jorgensen  
Operations Engineer @ Incentive Networks  
650.226.4917 PST (GMT-0800)

---

<div class="post-metadata">

**Author:** ![kallistec](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.chef.io/kallistec/32/23_2.png) [@kallistec](https://discourse.chef.io/u/kallistec)\
**Post date:** [February 26, 2013, 10:54pm UTC](https://discourse.chef.io/t/rubygems-format-loaderror/3677/2 "2013-02-26T22:54:32Z")

</div>

On Tuesday, February 26, 2013 at 2:48 PM, Vincent Jorgensen wrote:

> I updated three of my boxes to the latest rubygems and chef (11.4.0) and now I'm getting the following missing package error:
> 
> # chef-client
> 
> /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:106:in `gem_original_require': no such file to load -- rubygems/format (LoadError) from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:106:in `require'  
> from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/provider/package/rubygems.rb:34  
> from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/providers.rb:60  
> from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef.rb:25  
> from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/chef-client:23  
> from /usr/bin/chef-client:23:in `load'  
> from /usr/bin/chef-client:23
> 
> I've confirmed that I have rubygems/format.rb
> 
> # locate rubygems/format.rb
> 
> /usr/lib64/ruby/gems/1.8/gems/rubygems-update-1.8.24/lib/rubygems/format.rb
> 
> The question becomes, why isn't chef able to find it?
> 
> Other specs that may or may not be helpful:  
> ib/ruby/site\_ruby/1.8/rubygems  
> 14:46 Tue Feb 26 # uname -a  
> Linux box.box 2.6.32-279.11.1.el6.x86\_64 #1 SMP Tue Oct 16 15:57:10 UTC 2012 x86\_64 x86\_64 x86\_64 GNU/Linux
> 
> # lsb\_release -a
> 
> LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch  
> Distributor ID: CentOS  
> Description: CentOS release 6.3 (Final)  
> Release: 6.3  
> Codename: Final
> 
> * * *
> 
> Vincent Jorgensen  
> Operations Engineer @ Incentive Networks  
> 650.226.4917 PST (GMT-0800)

The latest ruby gems is 2.0, which has breaking changes. If you really really need ruby gems 2.0, you can build from this branch: [[CHEF-3933] Add support for Rubygems 2.0 by danielsdeleo · Pull Request #654 · chef/chef · GitHub](https://github.com/opscode/chef/pull/654)

--  
Daniel DeLeo

---

<div class="post-metadata">

**Author:** ![Vincent\_Jorgensen](https://avatars.discourse-cdn.com/v4/letter/v/e5b9ba/32.png) [@Vincent\_Jorgensen](https://discourse.chef.io/u/Vincent_Jorgensen)\
**Post date:** [February 26, 2013, 11:22pm UTC](https://discourse.chef.io/t/rubygems-format-loaderror/3677/3 "2013-02-26T23:22:59Z")

</div>

I do not need the latest! Whoops. Is there a way to go back to the last rubygems \< 2.0 ?

* * *

Vincent Jorgensen  
Operations Engineer @ Incentive Networks  
650.226.4917 PST (GMT-0800)

On Feb 26, 2013, at 2:54 PM, Daniel DeLeo wrote:

> On Tuesday, February 26, 2013 at 2:48 PM, Vincent Jorgensen wrote:
> 
> > I updated three of my boxes to the latest rubygems and chef (11.4.0) and now I'm getting the following missing package error:
> > 
> > # chef-client
> > 
> > /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:106:in `gem_original_require': no such file to load -- rubygems/format (LoadError) from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:106:in `require'  
> > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/provider/package/rubygems.rb:34  
> > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/providers.rb:60  
> > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef.rb:25  
> > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/chef-client:23  
> > from /usr/bin/chef-client:23:in `load'  
> > from /usr/bin/chef-client:23
> > 
> > I've confirmed that I have rubygems/format.rb
> > 
> > # locate rubygems/format.rb
> > 
> > /usr/lib64/ruby/gems/1.8/gems/rubygems-update-1.8.24/lib/rubygems/format.rb
> > 
> > The question becomes, why isn't chef able to find it?
> > 
> > Other specs that may or may not be helpful:  
> > ib/ruby/site\_ruby/1.8/rubygems  
> > 14:46 Tue Feb 26 # uname -a  
> > Linux box.box 2.6.32-279.11.1.el6.x86\_64 #1 SMP Tue Oct 16 15:57:10 UTC 2012 x86\_64 x86\_64 x86\_64 GNU/Linux
> > 
> > # lsb\_release -a
> > 
> > LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch  
> > Distributor ID: CentOS  
> > Description: CentOS release 6.3 (Final)  
> > Release: 6.3  
> > Codename: Final
> > 
> > * * *
> > 
> > Vincent Jorgensen  
> > Operations Engineer @ Incentive Networks  
> > 650.226.4917 PST (GMT-0800)  
> > The latest ruby gems is 2.0, which has breaking changes. If you really really need ruby gems 2.0, you can build from this branch: [[CHEF-3933] Add support for Rubygems 2.0 by danielsdeleo · Pull Request #654 · chef/chef · GitHub](https://github.com/opscode/chef/pull/654)
> 
> --  
> Daniel DeLeo

---

<div class="post-metadata">

**Author:** ![kallistec](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.chef.io/kallistec/32/23_2.png) [@kallistec](https://discourse.chef.io/u/kallistec)\
**Post date:** [February 26, 2013, 11:28pm UTC](https://discourse.chef.io/t/rubygems-format-loaderror/3677/4 "2013-02-26T23:28:28Z")

</div>

According to `gem list rubygems-update -r -a`, version 1.8.25 is the last one before 2.0.

To downgrade to that, do `gem update --system 1.8.25`. You can also use that command to upgrade from older rubygems without going all the way to 2.0 (assuming you're not starting from a version of ruby gems that's too old to have that feature--I don't remember when it was added).

HTH,

--  
Daniel DeLeo

On Tuesday, February 26, 2013 at 3:22 PM, Vincent Jorgensen wrote:

> I do not need the latest! Whoops. Is there a way to go back to the last rubygems \< 2.0 ?
> 
> * * *
> 
> Vincent Jorgensen  
> Operations Engineer @ Incentive Networks  
> 650.226.4917 PST (GMT-0800)
> 
> On Feb 26, 2013, at 2:54 PM, Daniel DeLeo wrote:
> 
> > On Tuesday, February 26, 2013 at 2:48 PM, Vincent Jorgensen wrote:
> > 
> > > I updated three of my boxes to the latest rubygems and chef (11.4.0) and now I'm getting the following missing package error:
> > > 
> > > # chef-client
> > > 
> > > /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:106:in `gem_original_require': no such file to load -- rubygems/format (LoadError) from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:106:in `require'  
> > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/provider/package/rubygems.rb:34  
> > > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/providers.rb:60  
> > > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef.rb:25  
> > > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/chef-client:23  
> > > from /usr/bin/chef-client:23:in `load'  
> > > from /usr/bin/chef-client:23
> > > 
> > > I've confirmed that I have rubygems/format.rb
> > > 
> > > # locate rubygems/format.rb
> > > 
> > > /usr/lib64/ruby/gems/1.8/gems/rubygems-update-1.8.24/lib/rubygems/format.rb
> > > 
> > > The question becomes, why isn't chef able to find it?
> > > 
> > > Other specs that may or may not be helpful:  
> > > ib/ruby/site\_ruby/1.8/rubygems  
> > > 14:46 Tue Feb 26 # uname -a  
> > > Linux box.box 2.6.32-279.11.1.el6.x86\_64 #1 SMP Tue Oct 16 15:57:10 UTC 2012 x86\_64 x86\_64 x86\_64 GNU/Linux
> > > 
> > > # lsb\_release -a
> > > 
> > > LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch  
> > > Distributor ID: CentOS  
> > > Description: CentOS release 6.3 (Final)  
> > > Release: 6.3  
> > > Codename: Final
> > > 
> > > * * *
> > > 
> > > Vincent Jorgensen  
> > > Operations Engineer @ Incentive Networks  
> > > 650.226.4917 PST (GMT-0800)
> > 
> > The latest ruby gems is 2.0, which has breaking changes. If you really really need ruby gems 2.0, you can build from this branch: [[CHEF-3933] Add support for Rubygems 2.0 by danielsdeleo · Pull Request #654 · chef/chef · GitHub](https://github.com/opscode/chef/pull/654)
> > 
> > --  
> > Daniel DeLeo

---

<div class="post-metadata">

**Author:** ![Vincent\_Jorgensen](https://avatars.discourse-cdn.com/v4/letter/v/e5b9ba/32.png) [@Vincent\_Jorgensen](https://discourse.chef.io/u/Vincent_Jorgensen)\
**Post date:** [February 26, 2013, 11:31pm UTC](https://discourse.chef.io/t/rubygems-format-loaderror/3677/5 "2013-02-26T23:31:45Z")

</div>

I tip my hat to you. Thanks.

* * *

Vincent Jorgensen  
Operations Engineer @ Incentive Networks  
650.226.4917 PST (GMT-0800)

On Feb 26, 2013, at 3:28 PM, Daniel DeLeo wrote:

> According to `gem list rubygems-update -r -a`, version 1.8.25 is the last one before 2.0.
> 
> To downgrade to that, do `gem update --system 1.8.25`. You can also use that command to upgrade from older rubygems without going all the way to 2.0 (assuming you're not starting from a version of ruby gems that's too old to have that feature--I don't remember when it was added).
> 
> HTH,
> 
> --  
> Daniel DeLeo
> 
> On Tuesday, February 26, 2013 at 3:22 PM, Vincent Jorgensen wrote:
> 
> > I do not need the latest! Whoops. Is there a way to go back to the last rubygems \< 2.0 ?
> > 
> > * * *
> > 
> > Vincent Jorgensen  
> > Operations Engineer @ Incentive Networks  
> > 650.226.4917 PST (GMT-0800)
> > 
> > On Feb 26, 2013, at 2:54 PM, Daniel DeLeo wrote:
> > 
> > > On Tuesday, February 26, 2013 at 2:48 PM, Vincent Jorgensen wrote:
> > > 
> > > > I updated three of my boxes to the latest rubygems and chef (11.4.0) and now I'm getting the following missing package error:
> > > > 
> > > > # chef-client
> > > > 
> > > > /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:106:in `gem_original_require': no such file to load -- rubygems/format (LoadError) from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:106:in `require'  
> > > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/provider/package/rubygems.rb:34  
> > > > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef/providers.rb:60  
> > > > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/../lib/chef.rb:25  
> > > > from /usr/lib/ruby/site\_ruby/1.8/rubygems/core\_ext/kernel\_require.rb:58:in `gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/core_ext/kernel_require.rb:58:in `require'  
> > > > from /usr/lib64/ruby/gems/1.8/gems/chef-11.4.0/bin/chef-client:23  
> > > > from /usr/bin/chef-client:23:in `load'  
> > > > from /usr/bin/chef-client:23
> > > > 
> > > > I've confirmed that I have rubygems/format.rb
> > > > 
> > > > # locate rubygems/format.rb
> > > > 
> > > > /usr/lib64/ruby/gems/1.8/gems/rubygems-update-1.8.24/lib/rubygems/format.rb
> > > > 
> > > > The question becomes, why isn't chef able to find it?
> > > > 
> > > > Other specs that may or may not be helpful:  
> > > > ib/ruby/site\_ruby/1.8/rubygems  
> > > > 14:46 Tue Feb 26 # uname -a  
> > > > Linux box.box 2.6.32-279.11.1.el6.x86\_64 #1 SMP Tue Oct 16 15:57:10 UTC 2012 x86\_64 x86\_64 x86\_64 GNU/Linux
> > > > 
> > > > # lsb\_release -a
> > > > 
> > > > LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch  
> > > > Distributor ID: CentOS  
> > > > Description: CentOS release 6.3 (Final)  
> > > > Release: 6.3  
> > > > Codename: Final
> > > > 
> > > > * * *
> > > > 
> > > > Vincent Jorgensen  
> > > > Operations Engineer @ Incentive Networks  
> > > > 650.226.4917 PST (GMT-0800)  
> > > > The latest ruby gems is 2.0, which has breaking changes. If you really really need ruby gems 2.0, you can build from this branch: [[CHEF-3933] Add support for Rubygems 2.0 by danielsdeleo · Pull Request #654 · chef/chef · GitHub](https://github.com/opscode/chef/pull/654)
> > > 
> > > --  
> > > Daniel DeLeo