July 9, 2007

Make Eclipse run faster in Ubuntu

I am using Eclipse now for php dev things. On my laptop I was very unsatisfied with the performance of Eclipse, even though I have enough RAM it was too slow.

This is only because when you install Eclipse with apt-get it uses the slower java-gcj vm. To change this first install the Java VM from Sun if not already done.
Next go to /etc/eclipse/java_home and uncomment the first line which looks like:
#/usr/lib/jvm/java-gcj
Afterwards I added a new line which points to SUNs JVM:
/usr/lib/jvm/java-6-sun-1.6.0.00


Edit: To install Java from Sun you have to

sudo aptitude install sun-java6-jdk

then with
java -version you will get the running version
and define it as a default

sudo update-java-alternatives -s java-1.6.0-sun

April 15, 2007

Ubuntu running on SEM P990i

Some guy called “Wizolabo” managed it to run a modified Ubuntu Linux version on a slightly modified SEM P990i. Here is a not so detailed proof.

February 12, 2007

Changing the HDD in a Panasonic Let’s note R3

Yesterday my HDD finnally gave up. Lately the notebook became slower and slower and the HDD louder and louder. After opening the small lid on the right side, I realized that there is no 1,8″ HDD built in. In fact its a normal 2.5″ but for replacing the HDD the whole notebook had to be disassembled.

The second difficulty was that the HDD is not a normal 5V no it is a 3.3V which you can only get through OEM support. I have no guarantee and anyway it will take too long so after a while I found a guide how to tweak a 5V HDD to become a 3.3V. It was quite easy I replaced the 40GB HDD with a new Hitachi 160GB, broke the 2 pins as described in the guide and the Computer recognized the new drive :)

The only bad thing which I have to figure out now is how to clone the old HDD so that it also takes the hidden partition to the new disc. I tried with Acronis but the software could only see my normal partition. Anyway at the moment it is only important that my computer runs again and for cloning etc I got an external CD drive. So it is not that difficult to install an OS without that hidden partition.

Another good source for the R3-5 I also found on my quest.

« Older Entries