Spoilt’s blog

I just voted for the Fedora 10 codename. If you’re a Fedora contributor please vote for the release name.

I voted only for Cambridge. water, mississippi, terror and whiskey run?? I mean c’mon you guys..

Click here if you’re new to Grids.
Click here to learn the basics (how to get a Grid Certificate, how to join a virtual organisation and so on).
a) First you need to install OpenAFS click here for more info
b) $ source /afs/cern.ch/project/gd/LCG-share/sl4/etc/profile.d/grid_env.sh
This will work out-of-the-box. You may want to add the above line to your .bashrc file. There’s no need to install anything LCG-specific on your fedora because you will be using CERN’s libraries, python, glite and etc.
for example:

[spoilt@prodigy ~]$ uname -a
Linux prodigy 2.6.25.10-86.fc9.x86_64 #1 SMP Mon Jul 7 20:23:46 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux
[spoilt@prodigy ~]$ which voms-proxy-init
/usr/bin/which: no voms-proxy-init in (/usr/lib64/qt-3.3/bin:/usr/kerberos/bin:/usr/lib64/ccache:/usr/local/bin:/bin:/usr/bin:/home/spoilt/bin)
[spoilt@prodigy ~]$ source /afs/cern.ch/project/gd/LCG-share/sl4/etc/profile.d/grid_env.sh
[spoilt@prodigy ~]$ which voms-proxy-init
/afs/cern.ch/project/gd/LCG-share/3.1.14-0/glite/bin/voms-proxy-init
[spoilt@prodigy ~]$ voms-proxy-init
Enter GRID pass phrase:
Your identity: /DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=ekaravak/CN=xxxxxx/CN=Edward Karavakis
Creating proxy ………………………………………………. Done
Your proxy is valid until Thu Jul 17 11:35:26 2008


Now you’re ready to run your echo “Hello World” to the Grid

- 16/11/08 Update: OpenAFS 1.4.8 has been released.

Here’s a quick guide on how to get OpenAFS working on Fedora 9. OpenAFS is an open source implementation of the Andrew distributed file system (AFS).

[spoilt@prodigy ~]$ sudo nano /etc/yum.repos.d/openafs.repo
and add the following:
[openafs]
name=OpenAFS 1.4.8 for Fedora $releasever - $basearch
baseurl=http://dl.openafs.org/dl/openafs/1.4.8/fedora-$releasever/$basearch/
enabled=1
gpgcheck=0

[spoilt@prodigy ~]$ sudo yum install openafs dkms-openafs openafs-client
Reboot your computer and start the openafs-client service
[spoilt@prodigy ~]$ sudo /sbin/chkconfig --level 35 openafs-client on
and you’re ready to explore the Andrew distributed File System!
[spoilt@prodigy ~]$ cd /afs
[spoilt@prodigy afs]$ ls
1ts.org it.kth.se
acm-csuf.org itp.tugraz.at
acm.uiuc.edu jpl.nasa.gov
ams.cern.ch kfki.hu
andrew.cmu.edu kloe.infn.it
anl.gov kth.se
asu.edu laroia.net
athena.mit.edu lcp.nrl.navy.mil
...the list is quite big!
[spoilt@prodigy ~]$ cd /afs/cern.ch/user/e/ekaravak
[spoilt@prodigy ekaravak]$ source /afs/cern.ch/project/gd/LCG-share/sl4/etc/profile.d/grid_env.sh
enjoy…

We all know that the Linux Flash Player 9.0.124 plays video with very low frame rates, especially on fullscreen.. it’s like a slideshow!

It’s a flash issue.. please go to http://bugs.adobe.com/jira/browse/FP-83 and vote for it / leave a feedback!

The new Flash 10 Beta was released a couple of weeks ago and according to Adobe the new version includes Linux performance enhancements (still no 64bit version): click here for more info

I have upgraded to the Flash 10 Beta and it didn’t fix the issue for me. Playback of fullscreen video seems to be only slightly improved.

So I downgraded to flash 9.0.46 and everything is fine now. Here’s how to fix the slow fullscreen performance (for 32bit):

(more…)