Gem install of mongrel_cluster fails

Ruby
1

root@rhaprpt:~# gem install mongrel_cluster --include-dependencies
Select which gem to install for your platform (i486-linux)

  1. mongrel 1.1.4 (x86-mswin32-60)
  2. mongrel 1.1.4 (java)
  3. mongrel 1.1.4 (ruby)
  4. mongrel 1.1.3 (i386-mswin32)
  5. mongrel 1.1.3 (java)
  6. mongrel 1.1.3 (ruby)
  7. Skip this gem
  8. Cancel installation

3
Select which gem to install for your platform (i486-linux)

  1. fastthread 1.0.1 (mswin32)
  2. fastthread 1.0.1 (ruby)
  3. fastthread 1.0.1 (i386-mswin32)
  4. Skip this gem
  5. Cancel installation

2
Building native extensions. This could take a while…
ERROR: While executing gem … (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

ruby extconf.rb install mongrel_cluster --include-dependencies
extconf.rb:1:in `require’: no such file to load – mkmf (LoadError)
from extconf.rb:1

Gem files will remain installed in
/var/lib/gems/1.8/gems/fastthread-1.0.1 for inspection.
Results logged to
/var/lib/gems/1.8/gems/fastthread-1.0.1/ext/fastthread/gem_make.out
root@rhaprpt:~#

----snip----
I got the suggestion to install this from a post on using capistrano:

http://blog.codahale.com/2006/06/19/time-for-a-grown-up-server-rails-mongrel-apache-capistrano-and-you/

2

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Xeno C. wrote:
| root@rhaprpt:~# gem install mongrel_cluster --include-dependencies
| Select which gem to install for your platform (i486-linux)
| 1. mongrel 1.1.4 (x86-mswin32-60)
| 2. mongrel 1.1.4 (java)
| 3. mongrel 1.1.4 (ruby)
| 4. mongrel 1.1.3 (i386-mswin32)
| 5. mongrel 1.1.3 (java)
| 6. mongrel 1.1.3 (ruby)
| 7. Skip this gem
| 8. Cancel installation
| > 3
| Select which gem to install for your platform (i486-linux)
| 1. fastthread 1.0.1 (mswin32)
| 2. fastthread 1.0.1 (ruby)
| 3. fastthread 1.0.1 (i386-mswin32)
| 4. Skip this gem
| 5. Cancel installation
| > 2
| Building native extensions. This could take a while…
| ERROR: While executing gem … (Gem::Installer::ExtensionBuildError)
| ERROR: Failed to build gem native extension.
|
| ruby extconf.rb install mongrel_cluster --include-dependencies
| extconf.rb:1:in `require’: no such file to load – mkmf (LoadError)
| from extconf.rb:1

Install the ruby-dev package (if you are on Ubuntu, for example). That
includes mkmf.

Phillip G.
Twitter: twitter.com/cynicalryan
Blog: http://justarubyist.blogspot.com

~ “I propose we leave math to the machines and go play outside.”
~ — Calvin
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3

Phillip G. wrote:

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I am on a hardy install now, and apt-cache search ‘ruby-dev’ returns
nothing, though apt-cache ruby | grep dev yields a ruby1.9-dev, but I am
using 1.8.6.

xc

4

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Xeno C. wrote:
| Phillip G. wrote:
|> I am on a hardy install now, and apt-cache search ‘ruby-dev’ returns
|> nothing, though apt-cache ruby | grep dev yields a ruby1.9-dev, but I am
|> using 1.8.6.

http://packages.ubuntu.com/hardy/ruby1.8-dev

This is the package you seek.

Phillip G.
Twitter: twitter.com/cynicalryan
Blog: http://justarubyist.blogspot.com

~ - You know you’ve been hacking too long when…
…you start reading car license plates as machine code. JMP 451, HCF
919
(this one really shook me up), HLT 772 (Halt instruction…gotta reboot
the
truck again!), FOXXY (um, don’t know that one…must be a floating point
instruction).
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=wfJO
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5

Phillip G. wrote:

(this one really shook me up), HLT 772 (Halt instruction…gotta reboot the

Thank you for your help Phillip. I find it this time searching for
exactly that string. Anyhow, I’m installing it…well, I also needed to
install make and gcc, but that I did…and it seems to have installed
successfully. Presumably the continuing saga will be uneventful.

Thank you.

Sincerely, Xeno