Category: ubuntu

  • Using Eclipse with OpenJDK 6 on Ubuntu

    Update: There seems to be a simpler way to do this. Take a look at the second comment. Java 1.6 (also known as Java 6) is now open-source so I installed it on Ubuntu and tried to run Eclipse with it. Unfortunately it said that no compatible java vm was found while searching /usr/lib/j2sdk1.4-sun/bin/java. So…

  • Kernel 2.6.24 + PostgreSQL != love?

    It seems so. The sad thing is that at the moment Ubuntu Server 8.04 (LTS) comes with 2.6.24… Ouch. Hopefully the patches will trickle down quickly. Also, note to myself: newer is not always better. Update: back to the future – 2.6.24. Thank you Marcin for pointing it out. Also corrected the tags.

  • Setting the CPU speed visually in Ubuntu

    This is a nice little tip from a friend on how to make the your CPU frequency indicator actually work. Some things I discovered in the process: The sticky bit, which, if I understand correctly is an other way for privilege elevation under *NIX (the other two I know of are sudo and su). This…

  • Small Qemu tips

    It’s official: Ubuntu has the best documentation out there. There is almost no problem for it you can’t fix by typing "Ubuntu [description of the problem]" or "Ubuntu [error message]" in your favorite search engine. For example, here you can find a very exhaustive documentation on installing Qemu and Kqemu (the Kqemu part is the…

  • Power management for Ubuntu

    I was praising Ubuntu earlier for its great hardware support. One thing it didn’t have out of the box however (which is a very nice feature of modern hardware) was dynamic frequency scaling. There is a detailed description over at the Ubuntu Guide wiki which worked nicely (yes, you actually need to remove packages –…

  • Setting up Xming or RDP equivalent for Linux

    To give a little background: the GUI under Linux (and Unix) is usually distributed the following way: X (the short term commonly used for X Windows System or X11) – this knowns how to draw some primitive elements (like boxes, text, etc) and to get input (from keyboard, mouse, etc) and also has the primitive…

  • Which password?

    A little note about mounting Truecrypt volumes: When you issue a command like this: sudo truecrypt [truecrypt volume] [where to mount it] You will be greated with the following prompts: Password: [your password to elevate privileges] Enter password for ‘[truecrypt-volume]’: [the password to the truecrypt volume] Now in hindsight it’s clear which password goes where,…

  • Setting up a PPTP VPN (client) with Ubuntu

    This applies to the latest release (7.04), because from what I understand older versions had more (complicated) steps to follow. My solution is based on this blog posting combined with some advice from here. The steps are: Install the network-manager-pptp package (either by doing sudo apt-get install network-manager-pptp, by using Synaptic or any other way…

  • TT – Treacherous Technology

    So, after a failed upgrade to Ubuntu 7.04 Feisty Fawn I was left with no choice but to boot into my Windows 2003 partition. (To Ubuntu’s defense: 7.04 is clearly marked as beta software and I was doing the update on my own risk). Just to be clear: this Windows 2003 SBS is a 100%…

  • Linux tips

    I am and will be very short of time for a couple of weeks, so most probably these will be the last posts for the month. If you’ve read and followed my advice on re-creating the swap partition after failed hibernation, there is one caveat I discovered: after recreating, the swap partition is not automatically…