reinstall/recover all software)
Step 1: Check the current system
The/etc/debian_version file is saved with the current Debian version:
$ Cat/etc/debian_version
Output:
3.1
Search for the kernel version
$ Uname-mrs
The output is
Linux 2.6.8-3-386 i686
Step 2: update the package list
Use the apt-get command:
# Apt-get update
Step 3: update and release
Use the dist-upgrade option of the apt-get command. This will upgrade Sarge to Etch. Dist-upgrade
Debian released the fourth Etch Update-Linux Release Technology-Debian information. The following is a detailed description. The Debian project team recently released the fourth update for the current stable version 4.0 (Etch. This update fixes some security issues and several serious defects. The new version also provides support for newer hardware, allowing you to choose to install newer hardware drivers.
1. Add servers from Shanghai Jiao Tong University
First back up the sources. list file,
CP/etc/APT/sources. LIST/etc/APT/sources. List. Bak
Edit the sources. list file,
VI/etc/APT/sources. List
Add the source,
Deb http://ftp.sjtu.edu.cn/debian etch main contrib non-free
Save and exit, update,
Apt-Get update
2. When you add a public key to use the above source, the following problems may occur:
W: GPG error: http://ftp.sjtu.edu.cn
Install compizfusion in etch-Debian in the Linux release. For more information, see. 1. Add source deb http://download.tuxfamily.org/sh... h/export topfx/stable /./
2. Execute the following command on the terminal to obtain the key:
Wget-O-http://download.tuxfamily.org/shames/A42A6CF5.gpg-O-| sudo apt-key add-
3. sudo apt-get update
4. Search compiz in the package manager and check your dress code.
5. For intel graphics cards, add the fol
Original article:Http://www.howtoforge.com/the_perfect_desktop_debian_etch
With the release of Microsoft's new Windows operating system (Vista), more and more people are looking for alternatives to Windows for various reasons. in this tutorial I will show people who are willing to switch to Linux how they can set up a Linux Desktop (Debian etch in this article) that fully replaces their Windows desktop, I. e. that has all software that people need to
So that your debian64 can play flash (supports stable and etch)-the Linux Release Technology-Debian information. For more information, see the following. If you don't talk nonsense, go straight to the subject:
1. Add deb source to/etc/apt/sources. list
Deb http://www.dipconsultants.com/debian etch main
2. Update
Apt-get update
3. Install key
Apt-get install markybob-keyring
Update again
Compile nginx-Linux Release Technology-Debian information on DebainSarge or Etch. The following is a detailed description. I mentioned the efficient nginx network server a few days ago and now I like it more and more. static file servers can all be changed to use it :)
Here we record the process of installing nginx In Debian Linux (Sarge 3.1 or Etch 4.0:
First install some necessary library functions:
Debian-etch: Install the driver of ATI-Debian, which is the Linux release technology. For more information, see the following. Install the atidriver of T43
Occasionally, T43 is a 64 m ati graphics card and does not need an official driver. Sometimes (this case is rare, such as playing a game) It is found that the screen refresh is very cpu-consuming and it has been suspected that the driver is not good, if you are free, just install one. It turns o
In debian4.0 (etch), follow the steps to correctly compile stardict3.0.0-Linux Release Technology-Debian information. For more information, see the following. By default, startdict 3.0.0 compiles several required function libraries. The version is later than the one included in debian 4.0. Therefore, some additional modifications are required for compilation. because stardict is based on the Program gtk2.0, first confirm that you have installed the li
DebianLinux (etch). so Link Library path-Linux Release Technology-Debian information, the following is read details. This is what I encountered when using ODE.
Generally, the installation is based on the source code in Linux. The steps are simple configure, make, and make install.
However, the problem may occur on make install: compiled dynamic link library (. so) will be put by makefile in places like/usr/local/lib. Because of the differences b
habit of Protel), such as zooming in and out of the PCB shortcut keys, not pageup and PageDown, but F10 and F11. Again, such as in the Protel mobile PCB drawing can be used with the mouse wheel (move up or down) or shift with the mouse wheel (move left and right), or the mouse button or the middle button press and hold can also, in Allegro, just hold down the middle mouse button or use the arrow keys. Of c
-etch) For more details on Plane splits.9. Separate signal traces into similar categories and route similar signal traces together (such as RoutingDifferential pairs together ).10. Keep high-speed USB signals clear of the core logic set. High current transients are producedInternal state transitions and can be very difficult to filter out.11. Follow the 20 * H thumb rule by keeping traces at least 20 * (height above the plane) away from the edgeOf the
(1) Error One
In the schematic of the electrical connection, must appear red fork, otherwise not counted electrical connection:
The following figure:
(1) Error two
The same network designator, on behalf of the electrical connection, when placing the net network designator, also should pay attention to, appear red fork to calculate electrical connection
(1) Error three
When making the schematic library, manually draw the schematic elements, note that the pin cross-out (otherwise all errors):
(
Label: des HTTP ar strong data SP Div 2014 CPCB design, especially high-frequency and high-speed design, will inevitably involve the calculation and setting of PCB-related parameters, such as via overcurrent capacity, via parasitic capacitance, impedance, etc, the current carrying capacity of the wire, crosstalk between two coupling signal lines, wavelength and other parameters.Here we will introduce a Saturn PCB
Autocam Automation platform, front-end management orders, the back end of the task, the front-end UIL interface has board thickness, copper thickness, plate, surface treatment, layers and other information, And this information is not after the end of the end of the information needed. Take the bore hole compensation, the back end needs is the borehole compensation value, but the front end does not have this information, wants to get this drill hole compensation value is through the Multidimensi
Linux-based schematic and PCB, Linux-based schematic PCBLinux schematic and PCBThe famous Allegro and the classic Protel 99SE in Windows do not support the Linux operating system. To develop a Linux driver, you must check the principle diagram and PCB.There are three common practices:1. The host uses the Windows system and installs Linux in virtual machines such as VMWARE so that you can use the software in Windows to view the schematic diagram and
the silkscreen box in the dot, drag the copied box from the original box, and then change to assembly. The assembly box mov is returned to the original box position to complete the copy.
6. What are the differences between Display_Top layer, Assemble_Top layer, and Silkscreen_Top layer?
7. Can I replace the pad when packaging components? Do not delete and then put it. For example, replace smd91x17. pad with smd91x16b. pad.→Click Replace.
8. How do I set the three types of cables, namely, differ
Objective: To add a logo to an enterprise design or personal work
Tool used: alicloud desinger 6.6
Photoshop
Background: The black and white images required in the operation are not black and white images that appear. But the file storage method is only black or white. You can edit the image file to open it. The image storage depth is 1 bit.
Procedure:
1. Use PS to convert an image into a black/white BMP Image
1.1 Load
1.2 image> mode> greyscal
1.3 image> mode> bitmap
1.4 save
2. Use aladedes
PCB Optimization Design (i.)2011-04-25 11:55:36| Category: PCB design SMT technology is now very mature and widely used in electronic products, therefore, electronic product designers need to understand the SMT technology common Sense and manufacturability design (DFM) requirements. SMT process products, at the beginning of the design should be integrated into consideration of the production process, raw ma
From http://blog.mcuol.com/User/luozhen0810/Article/9700_1.htm
Printed circuit boards (PCB) appear in almost every electronic device. If there are electronic parts in a device, they are all mounted on PCB of different sizes. In addition to fixing all kinds of small parts, the main function of PCB is to provide the electrical connection between the above parts. A
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