I noticed a while ago that my Echofon toolbar button had dispapeared in Firefox. I couln’t find any information how to fix this, except that i should enable the add-on toolbar. But Echofon had Firefox toolbar support, so I souldn’t need the add-on bar.

I’ve found out how te re-enable the toolbar button, and decided to share it here.

1. Navigate in Firefox to about:config
2. Accept the warning notification:
   
3. Type or paste the following string in the filterfield: extensions.twitternotifier.toolbarButtonAdded
4. Doubleclick on the item which shows up, and make sure it is set to “false”.
   
5. Restart Firefox

Now the toolbar button should have reappeared.

Please leave a comment if this solution has worked for you!

Ever been in the situation that you had to copy a bunch of files, and later on wanted to copy only the added files by skipping the existing files?
You can do that with xcopy. Only not with the default paramaters.
For example:

echo n|xcopy f:\source_folder y:\destination_folder /E

The /E makes sure subfolders are also copied. The echo n| prevents overwriting of existing files.

For my (simple) file server I’ve done a minimal installation of CentOS 5.4, and added some repositories. I’ve decided to use ZFS as filesystem for my storage.

The installation of zfs-fuse went smooth, and I’ve created a pool in no-time. There were many tutorials available online on how to do this stuff.

The only problem I ran into, was running out out of memory. The server has only 512Mb Ram, and zfs-fuse was using over 400Mb RAM.

After some research, it seamed the problem was the caching mechanism of ZFS. After a while I figured out how to disable this caching mechanism. You can use the following commands:

zfs set secondarycache=none data

zfs set primarycache=none data

Where data is the name of the pool. This affects the performance of this filesystem, but at least my server doesn’t run out of memory anymore.

Another tip for ZFS: after an update, upgrade your pool to a new version with the following command:

zpool upgrade data

I’ve managed to compile stkeys for my N900 (running Maemo).

Stkeys is an utility to recover the default WPA key from certain Thomson routers using the default SSID, for example the Speedtouch 780.
A few simple benchmarks show that the recovery takes about 130 seconds.

You can download the .deb file here. You can download this file, and install (as root) with dpkg -i stkeys_0.1_armel.deb.

Example usage:
For example we use as SSID of “SpeedTouch188DBB”
You should run stkeys 188dbb from a terminal, and you will see the following:

In this particular case the WPA-key is: 763FF260D1 which is the first possible key for 2006.

Please leave a comment and share your experiences.

Update: (27-10-2010) stkeys is now in the extras-testing repository. You can install it on your N900 by clicking this link.

I recently bought a PlayStation 3 80Gb. When I tried to install Yellow Dog Linux (YDL) on the PlayStation, I came across a message saying something like:

The partition table on device PS3DA was unreadable.

It also warned me that it would destroy all the data on the drive.

I didn’t like the idea of installing and updating all those games again, so I googled for this warning. I found out that YDL doesn’t have access to the entire disk, but only to the part it is allowed to by the PlayStation Firmware. So the only data it could destroy, was the data on the partition which I had created in the PlayStation 3 menu. This means it doesn’t destroy all data on the disk, but only on the empty partition, where no data is stored.

After the installation and booting into the GameOS, it seemed all my savegames and gamedata was still available. So no worries when you come across the warning I described above, your data will not be lost.

You still might want to backup your savegames before installing YDL, you never know what could happen…