Friday, May 7, 2010

Ubuntu Lucid Lynx and the fixes

So here comes Lucid Lynx, an LTS (Long Time Support) version of Ubuntu after two years, giving so much of expectations. I can see many whistles such as the new theme which tries to wrap Ubuntu in a non-geeky cover, specially the shift from brown to purple. Twitter integration, UbuntuOne, Mac like theme, which still seem whistles to a user, unless he is literally a kid which can rarely be the case for a Linux user. Ubuntu 10.04 was released on 30th of April, with the code name Lucid Lynx. This has become the long time support version of Ubuntu after Ubuntu 8.04, known as Hardy Heron, making a huge expectation from the user base.

I did upgrade my operating system from Ubuntu 9.10. The upgrade had introduced me few bugs, which I have fixed without much difficulty. As there are many users out there facing similar issues, work arounds for many of the bugs can be found online, and that's the biggest supportive force behind Ubuntu, as well as the other FOSS projects, I would say.

Let me share few of the issues I had to fix after the upgrade.

After the upload, when each time the computer started, this annoying error was thrown. "An error occurred while mounting /proc/bus/usb. Press S to skip mounting or M for manual recovery." I realized this was due to a usb fix I did for Virtualbox for Ubunut Karmic Koala which is no more required after the upgrade to Lucid. To fix this, in terminal,
sudo vim /etc/fstab
Removing the line we had added from the file, "none /proc/bus/usb usbfs devig=123,devmod=664 0 0" from the fstab fixed this issue, according to the Ubuntu Community's help page for Virtualbox/USB.

"The panel encountered a problem while loading "OAFIID:Deskbar_Applet". Do you want to delete the applet from your configuration?", an error message was thrown immediately after the upgrade. I deleted it, and it seems I didn't lose any deskbar applets at all.

An annoying bug that I had to fix was, "Desktop effects could not be enabled.", where I was unable to go for the 'Normal' and 'Extra' visual effects from the 'None'. That obviously was due to an error in the graphics card driver, I felt. Command lspci shows the PCI buses and the devices, where we can get the details of the graphics controller installed, where mine was
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07).
This had many workarounds on the web. Anyway I found the reason for the issue as well as a nice fix here, which finally made my Lucid free from the annoying bugs introduced during the upgrade.
sudo apt-get purge nvidia*
sudo apt-get install --reinstall xserver-xorg-video-intel libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core
sudo dpkg-reconfigure xserver-xorg
sudo update-alternatives --remove gl_conf /usr/lib/nvidia-current/

Though the new purplish Mac-like theme got a huge attention, as I was already using Mac4Lin theme, this new enhancements to the look n feel failed to impress me, as I felt Mac4Lin still leads!

The first software that I tried after the upgrade was, Zekr - A Qur'an Study Tool, which obviously is a cool tool for the Muslim brethren, as I see. As the final note, I really feel that I shouldn't go for 'Ubuntu Maverick Meerkat', which will be released this October. The reason simply is, I am not ready to spend days for downloading the upgrade files of 4 GB and fixing bugs to move from an LTS version to just a normal version.

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