RVM on Ubuntu Lucid

BridgeUtopia (Katherine G. Pe): Install RVM, Passenger, Nginx and Rails 3 on Ubuntu Lucid Lynx

Ubuntu Forums: [SOLVED] Ruby and RVM (Ruby version manager) on Ubuntu from source

Ruby Inside: Ruby Version Manager: Easily Use Multiple Ruby Versions At Once

intertwingly.net (Sam Ruby): Sam Ruby: RVM for Ubuntu Tip

Stack Overflow: Issue installing RVM for RoR in Ubuntu

Create a Local Ubuntu Repository using Apt-Mirror and Apt-Cacher

Packt Publishing Technical & IT Book Store - Create a Local Ubuntu Repository using Apt-Mirror and Apt-Cacher

"Apt-Cacher differs from apt-mirror in that it does not mirror the entire repository contents, but simply caches (stores) any packages requested by clients within the network. In other words, it works as a middle man between the public repository and the LAN clients, sharing any common downloads internally."

Bootable Floppy ISO

I had a bootable floppy disk saved as an IMG file that I wanted to make into a bootable ISO image (don't ask why). I did so on Ubuntu using the following command (it'll probably wrap here but it's a single line):

mkisofs -pad -b bootdisk.img -R -o bootdisk.iso bootdisk.img

bootdisk.img is the source IMG file.
bootdisk.iso is the resulting ISO file.


Source: http://www.troubleshooters.com/linux/floppy_image_on_cd.htm

nano nowrap

To make the nowrap (-w) option default when starting nano, edit (or create) .nanorc in your home directory with the line:

set nowrap

More info at The GNU nano editor FAQ

Ubuntu Release Cycle

The Ubuntu Release Cycle

[Update 2010-09-08]

The above link seems to no longer work. The release schedule is listed here:
Releases - Ubuntu Wiki

Sansa m250 with Ubuntu 9.04

Ubuntu 9.04 did not let me see the files on my Sansa m250 mp3 player. It detected it as a media player but I could not see its file system. I got it to work based on info in item #7 in this forum post by editing this file:

/usr/share/hal/fdi/preprobe/10osvendor/20-libgphoto2.fdi

I used gksudo nautilus to open a root file manager session. Then I made a backup copy of the above file in a directory under my home directory. Next I opened the file in gedit, commented out the section pertaining to Sansa devices, and saved the file.

Instead of restarting hal I just restarted the machine.

Now when I connect the Sansa player I can see and copy files as I please.

Ubuntu LAMP

Installing Apache MySQL PHP on Ubuntu.

Ubuntu 8.10 Freezes After Login Screen

Ubuntu 8.10 Freezes After Login Screen - Benaiah’s Computer Experiences

This fixed problem with Ubuntu 9.04 on my ancient Dell Optiplex GX110 where, on reboot, after changing the screen resolution, GNOME would freeze with a faux pointillism version of the desktop.

G-Scripts

Nautilus File Manager Scripts: Welcome to G-Scripts

nautilus-open-terminal

I figured there'd be something like this available:

Ubuntu Tutorials : nautilus-open-terminal : terminal quick launch

Just installed on a couple Ubuntu boxes. Looks like it'll be handy.