Sure, you can run over to Terminal as Root and enter that command everytime your reboot and want to use Cinelerra, and yes, that’s 7 f’s. But why not make a more permanent change. This error message is just trying to say to allocate more memory space to Cinelerra. Cinelerra will be happy. Linux will be happy. You’ll be happy. So let’s go team!

Open terminal in super user mode, I just used the icon already on Debian, under Applications | System Tools | Terminal Server – Super User Mode and enter the following at the command prompt to make a backup of this file. You always make a backup, right!?

cp /etc/sysctl.conf /etc/sysctl.conf.backup

Now let’s edit this file. Enter this next:

nano /etc/sysctl.conf

At the very bottom of the file, add this line, and remember that’s 7 f’s, we’re talking memory size here. After adding this line, save and close the file, CTRL-X and then Y for yes to save it.

kernel/shmmax=0x7fffffff

Now, let’s put this file in action, at the command prompt enter:

sudo sysctl -p

Test by opening Cinelerra. Yay! No more annoying error message! Well, at least at startup.

The volume control did not find any elements and/or devices to control. This means either that you don’t have the right GStreamer plugins installed, or that you don’t have a sound card configured.

After some research, I found that the new kernel did not have built in support for Alsa sound firmware! What?! Ok, I’m not going to rant about this too much, suffice it to say, it worked with the previous kernel why in the world would they not include it in the most recent kernel? Rant over. Let’s fix it.

First thing, you have to do a manual install of the alsa-source and the build-essential files. Open terminal in super user mode, I just used the icon already on Debian, under Applications | System Tools | Terminal Server – Super User Mode and enter the following at the command prompt:

aptitude install alsa-source build-essential

This will take a few minutes, but now you’ll have the groundwork for installing the firmware to connect to your sound card in Debian Lenny. Next, you’ll need to download the firmware for Alsa from here:

ftp://ftp.alsa-project.org/pub/firmware/alsa-firmware-1.0.16.tar.bz2

Make a directory to store this file:

mkdir /usr/src/alsa

At the Terminal command line, copy the downloaded file to the sources area you just created. Adjust this path as needed, depending on where you saved your download (remember Unix is case sensitive):

cp /home/nancyfusco/Desktop/alsa* /usr/src/alsa

Now path out to that area, so you can unpack the tar:

cd /usr/src/alsa

Unpack it:

tar -vxjf alsa-firmware-1.0.16.tar.bz2

Path out to the unpackaged folder:

cd /usr/src/alsa/alsa-firmware-1.0.16

Are you ready? Good! Here we go! Now to compile and install the firmware and configuration for your sound card. At the command prompt enter:

./configure && make && make install

Watch it work while sipping on a cold one. Reboot. Hey! Look! We got sound again! Now go watch some Charlie the Unicorn to celebrate!

A pretty simple fix by adding in the position: relative; to the containing div tag, as in the stylesheet for my blog:

.post{
position: relative;
margin: 10px 0;
padding: 11px 11px 0;
background: url(images/bg_post.jpg) no-repeat;
}

Nice thing about this tweak – It doesn’t break how Firefox/Mozilla renders the page. It just makes IE play nice with your div layout.

Precondition Failed
The precondition on the request for the URL /blog/wp-admin/media-upload.php evaluated to false. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

It generally goes without saying, however, make a backup of your .htaccess file before editing it.

Add this to your .htaccess file in the root of your website to fix this issue:

<IfModule mod_security.c>
SecFilterEngine Off
SecFilterScanPOST Off
</IfModule>