# Installation Problems

**URL:** <https://www.ruby-forum.com/t/installation-problems/94862>\
**Category:** Ruby\
**Created:** [May 16, 2006, 8:35pm UTC](https://www.ruby-forum.com/t/installation-problems/94862 "2006-05-16T20:35:38Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![patryk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/838e76/32.png) [@patryk](https://www.ruby-forum.com/u/patryk)\
**Post date:** [May 16, 2006, 8:35pm UTC](https://www.ruby-forum.com/t/installation-problems/94862/1 "2006-05-16T20:35:38Z")

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I’m new to ruby, and attempting to install it for the first time.  
Running as root under CentOS 4, I downloaded the sources, configure,  
make, and make install, all with no apparent errors.

However, whenever I attempt to run it, I get this:

-bash: /usr/bin/ruby: No such file or directory

I assume that I’m missing something fairly obvious, but I don’t know  
where.

Help?

---

<div class="post-metadata">

**Author:** ![patryk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/838e76/32.png) [@patryk](https://www.ruby-forum.com/u/patryk)\
**Post date:** [May 16, 2006, 8:43pm UTC](https://www.ruby-forum.com/t/installation-problems/94862/2 "2006-05-16T20:43:12Z")

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Patryk Soika wrote:

> Help?

How are you trying to run it? Maybe it isn’t installed at /usr/bin/ruby.  
Try:

whereis ruby

and/or

which ruby

To see where it is installed and which location bash is trying to use.  
Also, might there have been an older/default installation of Ruby that  
is messing it up?

-Justin

---

<div class="post-metadata">

**Author:** ![patryk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/838e76/32.png) [@patryk](https://www.ruby-forum.com/u/patryk)\
**Post date:** [May 16, 2006, 8:49pm UTC](https://www.ruby-forum.com/t/installation-problems/94862/3 "2006-05-16T20:49:30Z")

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“whereis ruby” returns  
ruby: /usr/bin/ruby /usr/lib/ruby /usr/local/bin/ruby  
/usr/local/lib/ruby

“which ruby” returns  
/usr/local/bin/ruby

Interestingly enough, on a whim, I just copied the program file into  
/usr/bin and it seems to be working. There was an older version  
installed that rails didn’t like, but that had been removed completely.

Justin C. wrote:

> whereis ruby
> 
> and/or
> 
> which ruby
> 
> To see where it is installed and which location bash is trying to use.  
> Also, might there have been an older/default installation of Ruby that  
> is messing it up?
> 
> -Justin

---

<div class="post-metadata">

**Author:** ![patryk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/838e76/32.png) [@patryk](https://www.ruby-forum.com/u/patryk)\
**Post date:** [May 16, 2006, 10:05pm UTC](https://www.ruby-forum.com/t/installation-problems/94862/4 "2006-05-16T22:05:30Z")

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Justin C. wrote:

> Just make sure you are running the version you expect with
> 
> ruby -v

1.8.4, latest and greatest.

Everything seems to be okay, now. I’ll test it a little harder later in  
the week.

Thanks a lot for your help!

-P

---

<div class="post-metadata">

**Author:** ![patryk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/838e76/32.png) [@patryk](https://www.ruby-forum.com/u/patryk)\
**Post date:** [May 16, 2006, 9:09pm UTC](https://www.ruby-forum.com/t/installation-problems/94862/5 "2006-05-16T21:09:07Z")

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Patryk Soika wrote:

> installed that rails didn’t like, but that had been removed completely.

Just make sure you are running the version you expect with

ruby -v

-Justin