Sunday, October 22, 2006

Hard disk geometry error on FreeBSD..

My hard disk, MAXTOR 6L040J2, resulted error while trying to install FreeBSD 6.1, then I made a search and some readings. They were about APCI, setting geometry values with hand, making memory checks etc.

The point
was that,

"Article about installation on FreeBSD site"

The article was saying "With this scheme the master disk on the second IDE controller will always be ad2, even if there are no ad0 or ad1 devices."

So I think the error may be because of using the end of the cable which I am plugged to the HD. Instead of using the end part, I used the middle joint point. So the primary will get the middle one, if secondary exists it would have the last one.

And tataa. It solved the problem. The installation worked out. So if you get such kind of error try to plug the cables of HD in different order before trying other things.

Lets see what more FreeBSD will bring to me and to this blog.

Have a nice day everybody..

Saturday, October 07, 2006

Webots' problems on Linux..

Webots well works on both Windows and Linux systems. Some days ago I made a mistake, changing screen card driver to NVidia, but my screen card was from Intel.

So Webots's simulation view, the 3D screen, did not work properly. When pressed stop or smt. the program quits. So as usual I tried to redownload and install the Webots. Off course, it did not solve the problem, because it was not the problem.

I also see some flash videos does not work, some works but. Whatever.
So I tried the
sudo nvidia-glx-config disable
command. This command told me that, my configuration is different, namely changed. So I made what did the command tell and changed the config. I also remove all the nvidia related packages from my system. Then, I restart the computer.

Oh my god. I am in console, and getting failures about gdm. I thougt the error is about my removed packages. So I reinstall
linux-386
linux-restricted-modules..2.6....
linux-restricted-modules-386
Then I go to
/etc/X11
and get the old config back. Thanx the backups..
cp /etc/X11/xorg.conf~ /etc/X11/xorg.conf
then
startx
yes! I came back. I think the error was all about the config file.

Because I have been removed all nvidia related packages, when retried the webots!! Yes Webots is also back..

It may be a quite little chance to get the same kind of error, however if it happened, I wish this writing to help you..
I did not search the web about this error, but you may find a better reference, and if so let me know by writing comments..