bash: javaws: command not found...

I'm currently running Fedora 17.  I got the following error starting up a .jnlp file for a web conference :

bash: javaws: command not found...

I checked alternatives, but there was no javaws. A quick yum install solved it :

sudo yum install icedtea-web

Fedora, docking stations and external monitors

I am running Fedora 17 and using a docking station with an external monitor.  Beefy Miracle does not play well in this scenario; apparently Fedora 18, Spherical Cow, doesn't either.

I found the answer on the blog "Note to Self", http://note-to-self.baker.com/.  This blog post has a solution for 17, and this post has one for 18.

rvm requirements

I recently upgraded to Fedora 17, Beefy Miracle.  The first time I used rvm to install a gem I got the following :

ERROR:  Loading command: install (LoadError)
    no such file to load -- zlib
ERROR:  While executing gem ... (NameError)
    uninitialized constant Gem::Commands::InstallCommand

I ran :

rvm notes

and

rvm requirements

And installed everything listed as a requirement for Fedora 17. That still didn't do the trick. I reinstalled 1.9.2 with :

rvm install 1.9.2

And finally :

sudo yum install -y gcc ruby-devel libxml2 libxml2-devel libxslt libxslt-devel1.9.2

Finally!

The moral of the story is :

• run rvm requirements 
• check the error logs if there are any (the location is the last line of the output)

PAE kernel

I use virtual machines a lot and really need more memory (more than 3.7GiB.)

Unfortunately I'm still running 32 bit Fedora 14.  I tried the 64 bit version, but had some problems with Firefox and Eclipse.



I've put off upgrading because of Gnome 3.  I tried out the Live Disc for 15.  It didn't convince me.

Since then I've heard enough good things about Gnome Shell that I'm willing to bite the bullet.  But just to play it safe I've been waiting until I have a few days with no meetings.  So meanwhile...

I added memory and installed the PAE kernel.

sudo yum install kernel-PAE

Pretty simple and my machine immediately recognized the extra memory.

SELinux and WebEx playback

While trying to watch a WebEx recording I got only sound and an SELinux alert.

I had to set SELinux to "Permissive" :

# setenforce Permissive 

A small price to pay.

The WebEx, btw, was Kris Verlaen's presentation on jBPM5.

Installing MySQL with Yum

A quick note on installing mysql with yum in case anyone else is lazy (like me) and runs :

sudo yum install mysql

That only installs half of what's needed. nixCraft sums it up nicely for RHEL. It also works for Fedora :

$ sudo yum install mysql
$ sudo yum install mysql-server

To start it up and set the root user/password :

$ sudo yum install mysql
$ sudo chkconfig mysqld on
$ sudo /etc/init.d/mysqld start
$ mysqladmin -u root password PASSWORD
$ mysql -u root -p