# df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
themirror       39G     39G      0B   100%    /home/jacob/themirror
# rm 3gfile
rm: 3gfile: No space left on device
# dd if=/dev/null of=3gfile
0+0 records in
0+0 records out
0 bytes transferred in 0.000046 secs (0 bytes/sec)
# rm 3gfile

#/boot/loader.conf
vm.kmem_size="1024"

everything worked, but I wanted to see what would happen if i doubled it. Unfortunately, setting vm.kmem_size to 2048 kept the FreeBSD kernel from booting. At startup it would just do this:

panic: kmem_suballoc: bad status return of 3
cpuid = 0

To fix the erroneous variable setting, I had to :

1. Reboot.

2. Wait for the FreeBSD Boot menu. (the screen that lists Default, ACPI disabled, safe, and single user modes)

3. Press 6 to select “Escape to loader prompt”

4. At the loader prompt, type “show”. This will provide all the default variable settings. press the spacebar to page down. In my case, at the end, the incorrect variable was: vm.kmem_size=”2048″.

5. to switch it back and allow the system to boot, type

set (variable)=(correct value)

in my case this was:

set vm.kmem_size=1024M

6. type

boot

When you are finished with all that fun, you should edit the /boot/loader.conf file back so you don’t have to do this again.
Thanks to “crsd” from the FreeBSD IRC channel for the help.

/etc/udev/rules.d/70-persistent-net.rules

In Debian 4 (etch) it is in this file:

/etc/udev/rules.d/z25_persistent-net.rules

To apply changes in Lenny: “udevadm trigger” or “udevtrigger” (in Etch)

1. Do a hard reset on the machine
2. When you arrive at the GDM screen, DO NOT CLICK ON ANYTHING.
3. press CTRL + ALT + F5. Your screen will switch over to a text console.
4. Log in.
5. Install the Nvidia glx driver

sudo aptitude install nvidia-glx-new

6. Reboot the machine.

sudo reboot

In Batch files, you can easily check for architecture by using the “processor_architecture” variable. x86 versions of windows will have this set to “x86″, and x64 versions “x64″. Heres an easy example:

@echo off
IF %processor_architecture% == AMD64 echo This is a 64-bit version of windows
IF %processor_architecture% == x86 echo this is a 32-bit version of windows.
pause

@echo off
REM
REM
REM    Detects winzip and silently uninstalls
REM    There is a un-stoppable pop-up window. so this will kill
REM    all instances of  IE after the UN-installation.
REM
REM
REM
taskkill /F /IM wzqkpick.exe
wmic product where "name like '%%winzip%%'" call Uninstall
REM
REM This section is for WinZip <12
REM
If Exist "%programfiles(x86)%\Winzip\winzip32.exe" GOTO 64
If Exist "%programfiles%\Winzip\winzip32.exe" "%programfiles%\WinZip\Winzip32.exe" /Uninstallx
taskkill /F /IM iexplore.exe
GOTO :END
:64
"%programfiles(x86)%\WinZip\Winzip32.exe" /Uninstallx
taskkill /F /IM iexplore.exe
:END

For getting rid of WinZip 12, the magic happens in the ‘wmic’ line. It searches all of the installed product’s names for “winzip” and will uninstall anything it finds. This only works for products that use MSI’s. If you ran this outside of a batch file, you will have to use a single % percentage sign instead of the %% double percentage sign… Windows scripting sucks, and that’s just the way it is. Same thing that happens in “FOR” loops.

I never knew anything about the Windows management instrumentation control (wmic) until now, but I will be sure to exploit it’s features.

**Confirmed using Blackberry Tour (9630) on Verizon. **

What we will do is use a program called ‘barry’. http://www.netdirect.ca/software/packages/barry All we need to do is install some packages from the repository below. These commands are from the terminal, so launch it from “Applications -> Accessories -> Terminal” in the Menu.

Edit /etc/apt/sources.list

sudo nano /etc/apt/sources.list

add these lines:

deb http://ppa.launchpad.net/doctormo/barry-snapshot/ubuntu karmic main
deb-src http://ppa.launchpad.net/doctormo/barry-snapshot/ubuntu karmic main

install the repositories key.

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 113659DF

Now update your package list

sudo aptitude update

and install the programs:

sudo aptitude install libbarry0 barry-util barrybackup-gui

Thats it! now to create the connection, the command will vary depending on your provider. The ones they have preconfigured are: ATT Cingular, China Mobile, KPN Nederland, O2 Ireland, Rogers, Sprint, T-Mobile US, Verizon.
the syntax is :
sudo pppd call barry-{provider}

for Verizon:

sudo pppd call barry-verizon

You’ll see a bunch of output, and it’ll tell you that the connection is up. to close it down, press (CTRL+C). Make it pretty by creating an application launcher on your desktop.

1. Get the packages installed.

apt-get install compiz compizconfig-settings-manager compiz-fusion-plugins-main

2.Follow the instructions here:  http://wiki.debian.org/Compiz to customize your /etc/X11/xorg.conf file

3. restart gdm

/etc/init.d/gdm restart

4. open up a terminal and type

compiz --replace

5. If a went well, you should see everything flash around as it redraws your desktop.

6. My window decorations (title bars) dissapeared when I enabled compiz. Additionally, i couldn’t drag windows by clicking on the title bar. To fix this: go to

a. System -> Preferences -> Compizconfig Settings Manager
b. Scroll down to the “Effects” section and enable “Window decoration”
c. Scroll down to “Window Management” and enable “Move Window”

7. If you want to use the desktop cube and/or workspaces, you will need more than the single or dual workspaces provided by default.

a. System -> Preferences -> Compizconfig Settings Manager
b. Click “General options”
c. Select the “Desktop size” tab.
d. Set the “Horizontal Virtual size” to whatever you want. For a cube… 4

8. If you want compiz to start automatically with GNOME:

Add “compiz –replace” to “Desktop -> Preferences -> Sessions -> Startup Programs”

This is a result of a zombie ‘vmware-vmx’ process running. All you need to do is kill the process. This command sends ’signal 9′ to the process. When sent to a program, SIGKILL causes it to terminate immediately. In contrast to SIGTERM and SIGINT, this signal cannot be caught or ignored. For more information: more sigkill info.

killall -s9 vmware-vmx

After that, I was able to start up the virtual machine without issue.

aptitude install bwm-ng

Then, just type ‘bwm-ng’ in the command line. It will give you something like this:

bwm-ng v0.6 (probing every 5.000s), press 'h' for help
  input: /proc/net/dev type: rate
  -         iface                   Rx                   Tx                Total
  ==============================================================================
               lo:           0.00 KB/s            0.00 KB/s            0.00 KB/s
             eth0:        2221.47 KB/s           48.13 KB/s         2269.60 KB/s
  ------------------------------------------------------------------------------
            total:        2221.47 KB/s           48.13 KB/s         2269.60 KB/s

Pressing the “h” key while it is running wil actually pull up a nice menu to change some of the options you are looking at.

bwm-ng is very basic, “iptraf” is another tool that provides some more functionality if you want to drill further into what is moving in and out of your box.