Are you sure you ran rails server before navigating to localhost:3000
? did it throw any errors?
Dheeraj K.
I meant no offense. Please, don’t take it that way. Let me explain my
post… I had originally intended to use Windows as the environment
for running Ruby on Rails, as a course I was following used both Windows
and
Mac. I finally felt convinced that it would be just as well to use
Linux. I had respectfully asked if I could share my experience in
trying
this.
I’m just very frustrated as I’m sure anyone can understand. This should
not
be so difficult to get up and running. I finally did get Ruby on Rails
in
stalled correct (or almost correctly)
and installed a test_app. Then when I tried to create an application
with
mysql database, it failed. Some other folks seemed to report some
similar
problems which I discovered when I did a web search. Unfortunately, the
solutions were lacking in the articles and stack overflow posts that I
read.
The use of Linux was a key part of the issue as it was suggested as a
solution to the problem of not being able to install Ruby when I was
using
Windows.
Anyway, I keep going in circles. I get a message saying that I need to
install gem msyql2 which I do and it reports back with no error and so I
try
again to install the app with the rails command and I get the same
error.
Thanks in advance for your help and time,
Bruce
You need to add it to the gemfile and run the bundle command.
Dheeraj K.
Hi Bruce,
On Sun, Sep 2, 2012 at 6:00 AM, Bruce W. [email protected]
wrote:
Anyway, I keep going in circles. I get a message saying that I need to
install gem msyql2 which I do and it reports back with no error and so I
try again to install the app with the rails command and I get the same
error.
I took a quick look at that tutorial, and if that’s all you did you
should
be getting the index.html file that Rails installs (the tutorial left
out
the part where it tells you that you have to delete it). If you did
that,
then you’re into the app itself and your problem description doesn’t say
much about what you did in addition to the tutorial.
So… need a little more info. How are you installing the mysql2 gem?
Are you using Bundler? Is the gem specified in the Gemfile? Were you
able to rake db:migrate or is that where you’re having your problem?
Best regards,
Bill
On 2 September 2012 06:49, Bruce W. [email protected] wrote:
There might have been a directory, Ill have to dig up that tutorial link.
Whatever it said for where to go in the browser is where I went. It says
Cannot display page…
Not found… etc.
Why have you just posted this question again? Did you see the
suggestions in my last post?
Now in the course I took online at Lynda.com, called Up and Runningwith Linux for PHP Developers. The location where we would be installing
software is giving me an error saying I dont have permission to use that
directory. It is /media/sf_sandbox/
I did try the sudo command in front of cd to go to that directory and it
said it didnt recognize sudo cd. It is both embarrassing and very
frustrating that it continues to take me so long to get this working. After
all this time, I STILL dont have a rails install that I can browse to.
Ive never ever had this kind of problem with anything, any programming
language or language environment.
I don’t think this is the right place to ask for help with installing
php on linux. It does not seem to have much to do with Rails.
Colin
Bill,
First, I really appreciate your help. At the risk of sounding
nave, in response to Dheerajs post that You need to add it to the
gemfile and run the bundle command. How do I do that? I guess this is
where I need to be more specific about where I left off. Ok, the
tutorial that I mentioned here:
uses the Webrick server. For some reason, when I started that server
and then tried to view the page using port 3000, it did not connect.
Therefore, I had my VirtualBox setup with Ubuntu and using Apache2 on
port 8080, which I could get to from my host OS. I wasnt seeing that
test app described at the above link, until I went into the folder
http://localhost:8080/test_app/
Of course, now, for some reason, I cannot get into any of the apps
that I just installed hours ago. I get Not Found at the test_app link
that I included just above. I can go to the http://localhost:8080/ uri
and see some web content that was put there. However, the test_app that
worked fine just a little while ago, is not working now. Had it been
working I would have said that the last problem to address is creating
an application with mysql support.
It is frustrating that my problem is now apparently related to my
Linux installation on my system and I cannot address the other issues of
moving on to learning RoR.
- test_app from the tutorial:
How to install Ruby on Rails in Ubuntu 12.04 LTS – SUDOBITS Blog
was working fine with apache2, not with Webrick. Unlike in that
tutorial, I couldnt go to just http://localhost:8080 or localhost:3000,
I had to add the directory in my browsers address bar, then I think I
had to go into public. - How are you installing the mysql2 gem? Are you using Bundler? In
the above referenced tutorial, I didnt need mysql. However, when I
added that to the command line:
rails new simple_cms d mysql
I got the message: An error occurred while installing mysql2 (0.3.11),
and Bundler cannot continue. Make sure that gem install mysqsl2 v
0.3.11succeeds before bundling. So, I then enter gem install mysql2 v 0.3.11 Then I try my install again... when asked to continue and over-write, I say Y. Then I get the same error. What is curious is that if I include theafter the gem install mysql v
0.3.11 it gives me a different prompt. - Is the gem specified in the Gemfile? Were you able to rake
db:migrate or is that where you’re having your problem?
I dont know what the latter means. I can look at the Gemfile and it has
this in it:
source :rubygems
gemspec
I know it is somewhat off topic, but I have to somehow figure out why
the apps I created previously, php and the RoR app (without the msyql
support) are not now accessible from a browser.
Thanks,
Bruce
From: Bill W.
Sent: Sunday, September 2, 2012 7:29 AM
To: [email protected]
Subject: Re: [Rails] Help getting started: Newbie: Windows and Rails
Hi Bruce,
On Sun, Sep 2, 2012 at 6:00 AM, Bruce W. [email protected]
wrote:
Anyway, I keep going in circles. I get a message saying that I need
to install gem msyql2 which I do and it reports back with no error and
so I try again to install the app with the rails command and I get the
same error.
I took a quick look at that tutorial, and if that’s all you did you
should be getting the index.html file that Rails installs (the tutorial
left out the part where it tells you that you have to delete it). If
you did that, then you’re into the app itself and your problem
description doesn’t say much about what you did in addition to the
tutorial.
So… need a little more info. How are you installing the mysql2 gem?
Are you using Bundler? Is the gem specified in the Gemfile? Were you
able to rake db:migrate or is that where you’re having your problem?
Best regards,
Bill
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No offense, but I suggest you ditch the Lynda tutorial. If it doesn’t
mention a gem file or a bundle command, that’s not a good sign.
The best (and only) guide to every beginner to Ruby on Rails is a book,
called Agile Web D. with Rails. You can find it here:
Dheeraj K.
On Sep 2, 2012, at 12:53 PM, Bruce W. wrote:
Bill,
First, I really appreciate your help. At the risk of sounding nave, in
response to Dheerajs post that You need to add it to the gemfile and run the
bundle command. How do I do that? I guess this is where I need to be more
specific about where I left off. Ok, the tutorial that I mentioned here:
How to install Ruby on Rails in Ubuntu 12.04 LTS – SUDOBITS Blog
uses the Webrick server. For some reason, when I started that server and then
tried to view the page using port 3000, it did not connect.
Were you trying to connect from within your virtualbox environment, or
from the host OS? Try looking at your Webrick-hosted sites from the same
OS that you launched them under – that’s the normal use-case for those
sorts of self-hosted apps. It’s meant to be a window into your dev site,
just a quick-and-dirty hack to get you to a click-test of the app.
Therefore, I had my VirtualBox setup with Ubuntu and using Apache2 on port 8080,
which I could get to from my host OS. I wasnt seeing that test app described at
the above link, until I went into the folder http://localhost:8080/test_app/
Of course, now, for some reason, I cannot get into any of the apps that I
just installed hours ago. I get Not Found at the test_app link that I included
just above. I can go to the http://localhost:8080/ uri and see some web content
that was put there. However, the test_app that worked fine just a little while
ago, is not working now. Had it been working I would have said that the last
problem to address is creating an application with mysql support.
Not sure what this all means, but I would still try to see the site from
within the linux environment, if that’s where it is running (that is, if
it was started with rails server from within the folder in a
terminal).
If you have Apache running inside virtualbox, and you can see a test
site (the classic It Works! page) at :8080 from your host OS, then you
need to set up passenger inside Linux, configure each virtual host where
you want to run Rails, and it should just work. Passenger on Linux is a
very patient and instructive installer script, so much so that I have
not yet failed to get it running on a bare VPS, despite my home-school
approach to Linux admin.
source :rubygems
gemspec
Your gemfile should have quite a bit more than that inside it, at least
on a bare Rails app. Here’s one now:
source ‘https://rubygems.org’
gem ‘rails’, ‘3.2.7’
Bundle edge Rails instead:
gem ‘rails’, :git => ‘git://github.com/rails/rails.git’
gem ‘sqlite3’
Gems used only for assets and not required
in production environments by default.
group :assets do
gem ‘sass-rails’, ‘~> 3.2.3’
gem ‘coffee-rails’, ‘~> 3.2.1’
See GitHub - sstephenson/execjs: Run JavaScript code from Ruby for more supported
runtimes
gem ‘therubyracer’, :platforms => :ruby
gem ‘uglifier’, ‘>= 1.0.3’
end
gem ‘jquery-rails’
To use ActiveModel has_secure_password
gem ‘bcrypt-ruby’, ‘~> 3.0.0’
To use Jbuilder templates for JSON
gem ‘jbuilder’
Use unicorn as the app server
gem ‘unicorn’
Deploy with Capistrano
gem ‘capistrano’
To use debugger
gem ‘debugger’
IF that file exists at the base of your rails root, and you cd into that
folder and type bundle install, you should see a lot of terminal whizz
by, and your app should suddenly have everything it needs to start up
properly.
I know it is somewhat off topic, but I have to somehow figure out why the apps I
created previously, php and the RoR app (without the msyql support) are not now
accessible from a browser.
You’ve probably borked your Apache install somewhat. See if you can get
to a bare virtual host, just a folder with index.html in it. IF that
works, then go up a level and make sure that passenger is properly
installed, and you’ve configured a new virtual host for your Rails app.
Don’t try to share a vhost with another app.
Walter
On Sep 2, 2012, at 1:50 PM, Bruce W. wrote:
Yes, I was trying from the host OS. I do have KDE installed in Linux so I can
browse to the Webrick link.Therefore, I had my VirtualBox setup with Ubuntu and using Apache2 on port
8080, which I could get to from my host OS. I wasnt seeing that test app
described at the above link, until I went into the folder
http://localhost:8080/test_app/
Of course, now, for some reason, I cannot get into any of the apps that I
just installed hours ago. I get Not Found at the test_app link that I included
just above. I can go to the http://localhost:8080/ uri and see some web content
that was put there. However, the test_app that worked fine just a little while
ago, is not working now. Had it been working I would have said that the last
problem to address is creating an application with mysql support.Not sure what this all means, but I would still try to see the site from within
the linux environment, if that’s where it is running (that is, if it was started
withrails serverfrom within the folder in a terminal).I wonder why I cannot get an app created in RoR with support for mysql?
Please copy and paste the exact rails new command you typed into
terminal when you created your test app.
There are tons of flags you can use to set up rails with various
databases. By default, it will use SQLite3, because that just works most
places. If you pass -d mysql to the new command, you will get a mysql
connector. But note that you don’t have to do this at the beginning of
your project. You can create a default (SQLite) application, then
transfer it to MySQL or PostgreSQL or anything else that’s supported,
later in the project life-cycle by changing a few lines of your gemfile
and database.yml files.
If you have Apache running inside virtualbox, and you can see a test site (the
classic It Works! page) at :8080 from your host OS, then you need to set up
passenger inside Linux, configure each virtual host where you want to run Rails,
and it should just work. Passenger on Linux is a very patient and instructive
installer script, so much so that I have not yet failed to get it running on a
bare VPS, despite my home-school approach to Linux admin.Can you expand on this? What will Passenger do?
Passenger is one of the ways to serve Rails applications. Think of it as
mod_php but for Rails. It’s an Apache module that understands the
structure of a Rails application and how to pass Web requests from
Apache into Rails. Learn more at http://modrails.org
It is frustrating that my problem is now apparently related to my Linux
installation on my system and I cannot address the other issues of moving on to
learning RoR.
I would take the patient advice of many others on this list, and please
put down the Lynda tutorial. Pick up the http://railstutorial.org path
instead. This is a FREE course that teaches you how to go from nothing
to a working, tested Rails app hosted on Heroku (which is also free) and
will give you the leg up you need without immersing you in the minutia
of installation hell where you seem to be circling. You will still want
to get a working local install of Rails, which will include being able
to browse your test site (hosted out of Webrick) locally at
http://localhost:3000 But that is really not as hard as your combination
of aged tutorial and lack of experience in Linux is giving you. There
are even instructions in railstutorial that will show you how to get
Rails installed directly under Windows, although I would urge you to
charge on and get it to work in your Linux environment instead.
gem ‘therubyracer’, :platforms => :ruby
gem ‘jbuilder’
IF that file exists at the base of your rails root, and you cd into that folder
and type bundle install, you should see a lot of terminal whizz by, and your app
should suddenly have everything it needs to start up properly.How do I get a Gemfile that is like that? My installation process didn’t seem
to work.
Again. Please post the rails new command that you typed (at its most
basic, this will be rails new mynewapp and it will be followed by a
bunch of feedback from the rails command, culminating in a working Rails
app). Also post the output of rails -v in your terminal.
I know it is somewhat off topic, but I have to somehow figure out why the apps
I created previously, php and the RoR app (without the msyql support) are not now
accessible from a browser.You’ve probably borked your Apache install somewhat. See if you can get to a
bare virtual host, just a folder with index.html in it. IF that works, then go up
a level and make sure that passenger is properly installed, and you’ve configured
a new virtual host for your Rails app. Don’t try to share a vhost with another
app.I need to learn more. Like how to get a bare virtual host… do you mean
reinstall apache somehow? Create a new install of Ubuntu in the VirtualBox?
I do have root access to a dedicated server but it uses CentOS and so that is
different and I’m only just now learning Linux.
If you started with a distribution of Linux that included Apache already
configured, you may have a working copy of Apache. Try launching Apache
in your terminal:
sudo apachectl configtest
sudo apachectl start
(substitute apache2ctl if apachectl doesn’t work – depends on the
distro)
If configtest doesn’t report any errors, start may tell you Apache is
already running. If not, it will start it. When Apache is running, then
try going to http://localhost in your Linux browser, and see what you
see there. You should see the default host, which in many Ubuntu
versions is a white page with the words It Works! really big at the top.
If that works, then move on to installing Passenger, which will get you
a connection between Apache and Rails. The Passenger installer will
probably tell you to install a half-dozen packages, and it will tell you
explicitly how to do this. Like I said, it’s very patient.
Walter
Hello,
Thanks Walter for your suggestions and information. I definitely
follow advice. Here’s some surprising news. I actually got everything
working right inside Windows while still trying to get things to work in
Linux!!! My Linux installation does not even have the mysql gem or the
mysql2 gem installed. I thought for sure I had it installed earlier.
Some of the issues of trying to get Rails working in Linux as
recommended deal with my ability to do simple things like capture the
output
of any command to a file. This would greatly help me to answer some of
your
questions about what is going wrong.
I did figure out some things about a rails app that change how
I
might try to access a page. For example, if I launch Webrick, and then
navigate to http://localhost:3000/demo/index
I get my demo controller and index action. It is inside an app called
simple_cms, or it could be in demo_app. However, if I try to visit
http://localhost:3000/simple_cms/demo/index that doesn’t work. I get a
“Routing Error” No route matches (GET) "simple_cms/demo/index
So, how does Rails know which application to run if you had many
apps
installed? For example, I have a testing environment where I use xampp.
I
thought I’d install my rails app there and just use apache which is
already
installed on my system. And I have many websites/applications in the
htdocs
folder. Therefore, if I wanted to setup a simple cms based on php, I’d
maybe put it in htdocs/simple_cms/ and then I would know that I need to
include the directory simple_cms so that Apache knows how to deliver
pages,
with each folder being self-contained. With Rails, how would this work,
I
have a folder where I put files, for example the htdocs folder (maybe I
shouldn’t use that for the Rails apps to avoid confusion), my sites
directory. So, I might have inside the sites directory the following:
simple_cms
mysecond_app
mythird_app
and these would all be directories under the sites directory. How does
Ruby
on Rails know which one to serve?
Ok, at the risk of going off topic and discussing Linux issues,
could I ask that you tell me how I might issue the commands you mention,
such as the rails new command such that the output can be sent to a file
that is easy to find. I currently use putty for Windows and haven’t
figured
out how to select content and copy it to the Windows clip board so that
I
could then paste that to a text editor.
My problems are with regard to where I left off in my Linux
installation of Ruby on Rails, I couldn’t get the gem mysql or gem
mysql2 to
install. When I type in gem list, I don’t see either of those.
I type in my linux sandbox:
rails new demo_app -d mysql
I get Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem
native
extension.
Below that, an error occurred while installing mysql2 (0.3.11) and
Bundler
cannot continue. Make sure that 'gem install mysql2 -v ‘0.3.11’`
succeeds
before bundling. At which point, I try to do
Sudo Gem install mysql2 and I get asked for my password and then it says
the
command sudo gem isn’t recognized. So, I try it without sudo and it
fails
to install.
I did pick up that book that happens to be directly related to the
tutorial that you sent to me.
Thanks,
Bruce
I’ll comment below.
On Sep 2, 2012, at 12:53 PM, Bruce W. wrote:
Bill,
First, I really appreciate your help. At the risk of sounding
nave, in response to Dheerajs post that You need to add it to the
gemfile and run the bundle command. How do I do that? I guess this is
where I need to be more specific about where I left off. Ok, the tutorial
that I mentioned here:
uses the Webrick server. For some reason, when I started that server and
then tried to view the page using port 3000, it did not connect.
Were you trying to connect from within your virtualbox environment, or
from
the host OS? Try looking at your Webrick-hosted sites from the same OS
that
you launched them under – that’s the normal use-case for those sorts of
self-hosted apps. It’s meant to be a window into your dev site, just a
quick-and-dirty hack to get you to a click-test of the app.
Yes, I was trying from the host OS. I do have KDE installed in Linux so
I
can browse to the Webrick link.
application with mysql support.
Not sure what this all means, but I would still try to see the site from
within the linux environment, if that’s where it is running (that is, if
it
was started withrails serverfrom within the folder in a terminal).
I wonder why I cannot get an app created in RoR with support for mysql?
If you have Apache running inside virtualbox, and you can see a test
site
(the classic It Works! page) at :8080 from your host OS, then you need
to
set up passenger inside Linux, configure each virtual host where you
want to
run Rails, and it should just work. Passenger on Linux is a very patient
and
instructive installer script, so much so that I have not yet failed to
get
it running on a bare VPS, despite my home-school approach to Linux
admin.
Can you expand on this? What will Passenger do?
above referenced tutorial, I didnt need mysql. However, when I added
3) Is the gem specified in the Gemfile? Were you able to rake db:migrate
or is that where you’re having your problem?
I dont know what the latter means. I can look at the Gemfile and it has
this in it:
source :rubygemsgemspec
Your gemfile should have quite a bit more than that inside it, at least
on a
bare Rails app. Here’s one now:
source ‘https://rubygems.org’
gem ‘rails’, ‘3.2.7’
Bundle edge Rails instead:
gem ‘rails’, :git => ‘git://github.com/rails/rails.git’
gem ‘sqlite3’
Gems used only for assets and not required
in production environments by default.
group :assets do
gem ‘sass-rails’, ‘~> 3.2.3’
gem ‘coffee-rails’, ‘~> 3.2.1’
See GitHub - sstephenson/execjs: Run JavaScript code from Ruby for more supported
runtimes
gem ‘therubyracer’, :platforms => :ruby
gem ‘uglifier’, ‘>= 1.0.3’
end
gem ‘jquery-rails’
To use ActiveModel has_secure_password
gem ‘bcrypt-ruby’, ‘~> 3.0.0’
To use Jbuilder templates for JSON
gem ‘jbuilder’
Use unicorn as the app server
gem ‘unicorn’
Deploy with Capistrano
gem ‘capistrano’
To use debugger
gem ‘debugger’
IF that file exists at the base of your rails root, and you cd into that
folder and type bundle install, you should see a lot of terminal whizz
by,
and your app should suddenly have everything it needs to start up
properly.
How do I get a Gemfile that is like that? My installation process
didn’t
seem to work.
I know it is somewhat off topic, but I have to somehow figure out why the
apps I created previously, php and the RoR app (without the msyql support)
are not now accessible from a browser.
You’ve probably borked your Apache install somewhat. See if you can get
to a
bare virtual host, just a folder with index.html in it. IF that works,
then
go up a level and make sure that passenger is properly installed, and
you’ve
configured a new virtual host for your Rails app. Don’t try to share a
vhost
with another app.
I need to learn more. Like how to get a bare virtual host… do you
mean
reinstall apache somehow? Create a new install of Ubuntu in the
VirtualBox?
I do have root access to a dedicated server but it uses CentOS and so
that
is different and I’m only just now learning Linux.
Thanks,
Bruce
Walter
Subject: Re: [Rails] Help getting started: Newbie: Windows and Rails
try again to install the app with the rails command and I get the same
So… need a little more info. How are you installing the mysql2 gem?
[email protected].
For more options, visit https://groups.google.com/groups/opt_out.
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On 4 September 2012 01:14, Bruce W. [email protected] wrote:
Hello,
Thanks Walter for your suggestions and information. I definitely
follow advice. Here’s some surprising news. I actually got everything
working right inside Windows while still trying to get things to work in
Linux!!! My Linux installation does not even have the mysql gem or the
mysql2 gem installed. I thought for sure I had it installed earlier.
Some of the issues of trying to get Rails working in Linux as
recommended deal with my ability to do simple things like capture the output
of any command to a file. This would greatly help me to answer some of your
questions about what is going wrong.
In a terminal you can probably do Edit > Copy (or Ctrl-Shift-C) then
open your editor and paste the contents in and save it.
By the way you are much more likely to get helpful answers here if you
can keep your questions simple. No need to give us your life history,
just describe the problem you are having. Also best to ask only one
question at a time.
Colin
On Sep 3, 2012, at 8:14 PM, Bruce W. wrote:
Hello,
Thanks Walter for your suggestions and information. I definitely follow
advice. Here’s some surprising news. I actually got everything working right
inside Windows while still trying to get things to work in Linux!!! My Linux
installation does not even have the mysql gem or the mysql2 gem installed. I
thought for sure I had it installed earlier.
Some of the issues of trying to get Rails working in Linux as recommended
deal with my ability to do simple things like capture the output of any command to
a file. This would greatly help me to answer some of your questions about what is
going wrong.
I did figure out some things about a rails app that change how I might
try to access a page. For example, if I launch Webrick, and then navigate to
http://localhost:3000/demo/index
I get my demo controller and index action. It is inside an app called
simple_cms, or it could be in demo_app. However, if I try to visit
http://localhost:3000/simple_cms/demo/index that doesn’t work. I get a “Routing
Error” No route matches (GET) "simple_cms/demo/index
So, how does Rails know which application to run if you had many apps
installed? For example, I have a testing environment where I use xampp. I
thought I’d install my rails app there and just use apache which is already
installed on my system. And I have many websites/applications in the htdocs
folder. Therefore, if I wanted to setup a simple cms based on php, I’d maybe put
it in htdocs/simple_cms/ and then I would know that I need to include the
directory simple_cms so that Apache knows how to deliver pages, with each folder
being self-contained. With Rails, how would this work, I have a folder where I
put files, for example the htdocs folder (maybe I shouldn’t use that for the Rails
apps to avoid confusion), my sites directory. So, I might have inside the sites
directory the following:
simple_cms
mysecond_app
mythird_app
and these would all be directories under the sites directory. How does Ruby on
Rails know which one to serve?
Only one Rails app can be running at a time on a single port. You can
start one with rails s -p 3001 in one directory, and then cd into a
different directory and use rails s, and you’ll have two different Rails
apps running at once on 3000 and 3001. You’ll need to put the correct
port into your browser to see each one, and this is kind of silly
(unless you’re experimenting with having one app talk to another, as in
an oath server/client setup, say) but there you go, that’s how it works.
If you have Apache running, and passenger, and you’ve configured
multiple virtual hosts, then you can access them on the same port just
by setting up some sort of name resolution on your local box. Put the
following in /etc/hosts:
127.0.0.1 one.app.dev
127.0.0.1 two.app.dev
and as long as you have configured your vhosts to have those names in
Apache, you will be able to access those two made-up domain names on
your local computer without entering any port number (they’ll be running
in port 80 – the default).
Ok, at the risk of going off topic and discussing Linux issues, could I
ask that you tell me how I might issue the commands you mention, such as the rails
new command such that the output can be sent to a file that is easy to find. I
currently use putty for Windows and haven’t figured out how to select content and
copy it to the Windows clip board so that I could then paste that to a text
editor.
Try using the Web interface to this list; either the Google G. one,
or the original at Rails - Ruby-Forum Then you can copy
and paste from your terminal in Linux. I have only ever tried to use
virtualbox on Mac OS X, where there is a menu command to move the
clipboard from the guest to the host and vice-versa. You might also look
into that option.
My problems are with regard to where I left off in my Linux installation of
Ruby on Rails, I couldn’t get the gem mysql or gem mysql2 to install. When I type
in gem list, I don’t see either of those.
I type in my linux sandbox:
rails new demo_app -d mysql
I get Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
extension.
Below that, an error occurred while installing mysql2 (0.3.11) and Bundler
cannot continue. Make sure that 'gem install mysql2 -v ‘0.3.11’` succeeds before
bundling. At which point, I try to do
Sudo Gem install mysql2 and I get asked for my password and then it says the
command sudo gem isn’t recognized. So, I try it without sudo and it fails to
install.
You may need to back up quite a bit. Make sure that rubygems is
installed, and the way you do that is with the command gem env in a
terminal. If you don’t get a nice listing of your Ruby and Rubygems
environment, then start your googling. Don’t use a package to install
rubygems, use the source!
Once you have rubygems working, then find a package for the mysql-dev
package, which will have all the headers you need to install the mysql2
gem. You didn’t paste the entire error message, but I’m betting you
don’t have the source code on your system that the rubygems environment
needs to build that gem. There are two parts to it (and some other gems
as well) – the ruby part, which is platform-agnostic, and the native C
bindings, which have to be compiled for your hardware. Without the
source code for MySQL, you won’t be able to build the latter part.
I did pick up that book that happens to be directly related to the tutorial
that you sent to me.
Thanks,
Bruce
Hope this helps, and hope you get things going and begin to understand
how it all works.
Walter