Icepack-linux and Neck Pads

Linux platform Maya: Blender Description

admin — Wed, 22 Feb 2012 06:28:09 +0000

Linux platform Maya: 3D art and game development environment Blender scene Profile
[Blender] is based on [GNU / GPL] generic open source software, open protocols. Three-dimensional computer is a professional content creation software. It is common to all operating system platforms. As an open source software, [Linux] platform [blender] the most important working environment.
[Blender] originated in a very arcade game fans the receipt of the company, the Netherlands [NeoGeo]. It was originally as [NeoGeo] within the three-dimensional animation tools exist. , The company’s partner Rosen said [Ton Roosendaal] established a new company, “not a number” [Not a Number, NaN], and as a developer Maya [Maya] competitors [Blender] basis. Unfortunately, after 1998, as the technology bubble burst, the number of non-closure of the company in 2001. A year later, Rosen said initiated [Blender] Foundation, the purpose is to [Blender] into an open-source project. In a number of enthusiastic volunteers and the number of former non-employees with the help of only seven weeks to raise a million dollars. Thus, [Blender] on the [GNU / GPL] under the banner of a free software.
Ton Roosendaal
Currently, [Blender] development is still mainly done by volunteers. Therefore, [Blender] in the continuous recruitment of new foundations. If you own in order to have confidence, you can also try to join the development and maintenance team. See specific details refer to the source [3].
And [ubuntu] is very similar, [Blender] also has a global user community. In China, [blender] community has been gathering a lot of popularity. Many of which are previously used [maya] and [3Dmax] users. In addition to this communication technology, you can also here the master who display their works

According to [GNU] terms, any use of [Blender] development work (including the [python] source code), all of its intellectual property rights belong to the developer their own. Works can be displayed on any occasion, whether profit or not, are not [Blender] developer of any restrictions. However, note that, [GNU / GPL] protocol requires the source code of the work itself is also open.
[Blender] is currently widely used [blender] 2.4 series. The series continues the tradition of some of Blender 2.46 in the fixed bugs that exist after the latest Blender 2.47 is a more stable “polyclonal” version. Also, some new tools are added in this version.

Reference Source:
[1] Blender 2.47 official profile. [2] Blender Noob to Pro Wikibook. [3] “http://www.blender.org/community/get-involved/” Blender Download: linux-glibc236-py24-i386.tar.bz2 “> Blender 2.47 x86-32 bit Linux systems, the need to python2. 4 linux-glibc236-py25-i386.tar.bz2 “> Blender 2.47 x86-32 bit Linux systems, the need python2.5 Blender 2.47 x86-64 bit Linux systems, the need python2.4 Blender 2.47 x86-64 bit Linux systems, the need python2.5

Original link: http://www.ownlinux.cn/2008/08/31/maya-3d-blender-linux/

Ubuntu system to teach you four ways to capture

admin — Mon, 20 Feb 2012 13:02:21 +0000

Have some basic computer friends should know that there is a PrintScreen key on the keyboard, which is used to intercept the screen. The method in most operating systems are effective under the Ubuntu Linux as well. But only use this method to look beyond their grasp at some screenshots, here we take a look at Ubuntu Campus magazine: “Taoyuan” super students of Tu written in Ubuntu screenshot method.
1 screenshots directly using the keyboard (most systems, including Windows also provides the method).
Press the PrintScreen key: the interception of the current entire desktop.
Press Alt + PrintScreen: the interception of the current active window.
(2) use compiz screenshot.
If your system is installed compiz effects, compiz is located in the screenshot key, and then super + left click to capture. Specific methods: Click: System / Preferences / Advanced Desktop Effects Settings, which found in Extras Screenshot, check the front of the box. Here you can change the default button and the image storage path. To facilitate, we have adopted the default values. Then you can hold down the super key, then press and hold the left mouse button drag to the interception of the picture. Note: The intercept of the image stored in the Desktop directory by default.
3 Take Screenshot comes with system software screenshot (below left)
Click: Applications / Accessories / Take Screenshot, a window will pop up. Above, there are several options: Grab the whole desktop: the interception of the entire desktop. Grab the current window: the interception of the current active window. Grab after a delay of ** seconds: ** seconds after the interception of pictures, mainly for the interception of dynamic images, such as 3D effects. Recommendation: If the current active window is the intercept, then select Grab the current window, the best click the window you want to intercept, and finally click the Take Screenshot button.

4 pictures in GIMP intercept (above right)
Click Applications / Graphics / GIMP Image Editor to open GIMP. Select: File / Acquire / Screenshot, will also pop up a window, this is a bit similar to the system in the Take Screenshot software. The most common of course is: Select a region to grab (select a region intercept), and then click Snap button, then the mouse becomes a? Cross?, Hold down the left click directly on it.
Download Ubuntu magazine: “Taoyuan” Read more

How to configure a Linux system RAID1?

admin — Thu, 16 Feb 2012 03:05:33 +0000

How to configure a Linux system RAID1?
A: First, Linux kernel can support RAID. The first thing to do is to buy two identical hard disk, and then divided into equally sized partitions. Then you can download the mdadm tool to create and manage RAID arrays.
Execute the following command, you can create your first disk array:
# Modprobe md # mdadm – create – verbose / dev/md0 – level = 1 – raid-devices = 2 / dev/hda1 / dev/hde1
The above command creates the array (/ dev/md0), and mapped to two physical disk (/ dev/hda1 and / dev/hde1). This RAID array is known as RAID1, which directly mirror mode. When you create a good, you can format it, and the same operation as the operation of other partitions it.
RAID does not require any configuration files. When the system boots, RAID array, will take effect immediately. So you can treat other physical partition on the RAID device, like any operation.

Tencent Linux QQ for the trial version of Godson-2F Notes

admin — Tue, 14 Feb 2012 02:21:38 +0000

August 29, 2008 Tencent released shortly after the x86 version of linux QQ such as online news said finally released a version of Godson-2F, I just upgrade the system for this version of the QQ Godson was about the trial.

I now introduce the hardware and software environment:
Hardware: PC 6002 Long Fu Long Dream Godson 2f, 512M memory, 80G hard drive, dual Gigabit Ethernet Software: Liu Shiwei provided Godson 2F mipsel debian-based optimization system 20080808a X desktop is gnome

Software Download linux / download.shtml “> http://im.qq.com/qq/linux/download.shtml
Download unzip (tar-zxvf) directly executable. Double-click that to run qq QQ.

Log interface is very simple, speed is not slow, style that became the win on style, with the x86 version of linux qq same.

After landing more familiar interface, simple and tried a little common functions and menu, discovery is quite simple, Tencent’s QQ have not see a value-added services.

Interface skin, as well as the background pattern.

Default chat window in the form of the label page, saving the desktop display space not used to clicking on the left button can also be separated from the window.

The current version only supports the standard expression of sending graphics, no screenshots, 自定义表情 function, send the file does not function. This may allow some of the QQ fans, sorry.

You can simply view chat history than win much weaker version of the history function

View personal information, the content is relatively simple, there is no support for custom avatars, all value-added services has not. However, individuals can maintain basic information, you can meet their basic needs.

System Settings is the most basic functions.

The way to the system installed a few skin, gnome-line skin very much, here I use a mac’s.

Overall, the current Preview 1.0 (106) version can handle the most basic communication needs, Preview or Preview (preview version), according to the progress of Tencent update this a few times, or in the continuous development should be the, I believe that soon there will be brings more features and surprises us!

How to migrate to ext4 Linux file system

admin — Fri, 10 Feb 2012 03:52:09 +0000

Ext4 is the number of Linux? The latest version of the file system, it is as important as the previous version and popular. As a Linux system administrator, you should know the advantages and disadvantages of migrating to ext4 and basic steps. This article describes when to adopt ext4, how to use the ext4 file system maintenance tools of traditional and how to take full advantage of the file system.
Ext4 features
Linux supports several different file systems. These file systems, some are dedicated network file system or operating system developed for other file systems, but most still used as a Linux native file system – you can Linux root (/) and put the file system directory system. Currently, this type of file systems including ext2, ext3, ReiserFS, XFS and Journaled File System (JFS). But the file system has been continuously design and development, the new file system are also expected to come out.
Is currently developing the most important Linux file system is ext4 – it is specifically developed for the original Linux extended file system (ext or extfs) of the fourth edition. As the successor of the previous version, ext4 in the near future is likely to become an important standard Linux file system (perhaps a standard file system).
Ext4 compared with ext3
Extended file system (ext or extfs) is the fourth edition of the causes of the developers in the ext3 into a new advanced features. However, during implementation there have been several problems:
Contrary to some of the new features backward compatibility. Ext3 code becomes more complex and difficult to maintain. These changes make a very reliable ext3 had become unreliable.
For these reasons, beginning in June 2006, the developer decided to ext4 from ext3 to separate independent development. Ext4 since the beginning of the development work carried out, but most Linux users and administrators do not pay attention to how this matter. With the 2.6.19 kernel release in November 2006, ext4 first appeared in the mainstream kernel, but it was still in the experimental stage (or now), so many people ignore it.
As is still in development stage, starting from the 2.6.24.4 kernel, ext4 feature list has been in flux. Ext4 features, including current and expected evolved from ext3 features, shown in Table 1.
Table 1. Ext4 features of the current and future capabilities to make it beyond the ext3

Function
Superiority

Larger file systems
Ext3 can hold up to 32 TiB file systems and 2 TiB files, depending on the specific architecture and system settings, the actual capacity limit may be lower than this figure – perhaps the only accommodate 2 TiB file systems and 16 gibibyte (GiB ) files. On the contrary, Ext4 file system capacity of 1024 pebibyte (PiB), or 1 exbibyte (EiB), and the file size reached 16 TiB. Of general desktop computers and servers, this may not be important, but for large disk array users, which is very important.

extent
extent is a way to improve the efficiency of disk file descriptors method, which can reduce the time required to remove the large files and so on.

Persistent pre-allocation
If an application requires the actual use of disk space allocated to it before, most file systems are not used by the disk space to write 0 to achieve the allocation. The ext4 allow early distribution, no need to carry out such operations, which can increase some of the performance of databases and multimedia tools.

Delay distribution
Ext4 can try to delay the allocation of disk space, which can improve performance.

More subdirectories
If ext3 in a directory can contain up to 32,000 subdirectories can not meet your needs, then do not worry, because ext4 to cancel this limitation.

Log checksum
Ext4 adds data to the log and check (checksum) function, which can improve the reliability and performance.

Online Defrag
Although ext3 is generally not affected by debris, but the files stored on it will produce some number of pieces. Ext4 support online defragmentation, which can improve overall performance.

Recover deleted files
Although this feature has not been achieved, but ext4 will support restoration of deleted files. When a file is accidentally deleted, this function will be extremely useful.

Faster file system checking
Ext4 adds a new data structure, allowing fsck to skip checking the unused portion of the disk, thus speeding up file system checks.

Nanosecond timestamps
Most of the file system (including ext3) contains a time stamp accurate to the second data, and ext4 the accuracy to the nanosecond. Some data also show that the ext4 timestamps support dates to April 25, 2514, while ext3 only to January 18, 2038.
Since ext4 is still in development stage, this menu will vary. List of features some of the features in actual use do not have backward compatibility with ext3 – that may not be able to use the ext3 file system type mount ext4 file system code. But ext4 retain forward compatibility – you can mount the ext4 file system is the same as the mount ext3 file system.
the use of object ext4
Ext4 is the most significant improvements in the size of files and file systems. Therefore, the users most likely to need ext4 are those few TB of disk space the size of the user. However, the feature list in Table 1 also shows some other interesting improvements. For example, if your directory with a large number of subdirectories, or to request time stamp accuracy is less than one second, you may want to try to use ext4.
Because ext4 is currently at an experimental stage, it must be used to re-compile the kernel, otherwise, there will be trouble when using ext4. In fact, ext4 in the pilot phase means that only want to contribute to the development of ext4, or some of its features are very eager, these cases only need to use it. If you want a stable release of ext4 before reliable large disk support, consider using XFS or JFS.
Of course, ext4 can not always be in the experimental stage. It will soon become a stable file system. By then, ext4 as ext3 as the best choice for all users, but requires attention to several issues. First of all, ext4 has some unique bug, so when the first stable release version of ext4 should pay more attention. Second, the use of ext4 may cause some older versions of the tools can not access the disk. This will involve emergency recovery tools, so make sure you use the tools do not support ext4 before the update. The good news is, it should be a smooth migration from ext3 to ext4, if you need to save the existing data, which will enable easy transfer.
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How to add a password to Grub

admin — Mon, 06 Feb 2012 02:38:31 +0000

Purpose is to prevent others modify grub, with a single-user mode.
Add password only need to modify the grub grub boot file, add a line password keyword, can be stored in plain text or MD5 encrypted storage. Here we introduce a way to use MD5 encryption.
1, first / sbin/grub-md5-crypt generate a MD5 password string

/ Sbin/grub-md5-crypt
Password:
Retype password:
$ 1 $ oWpTe $ / MWUUYbBlF.2RUZK8nbWU0
The original password is “abc”.
2, modify the grub.conf file

default = 0
timeout = 5
splashimage = (hd0, 0) / boot / grub / splash.xpm.gz
hiddenmenu
password – md5 $ 1 $ oWpTe $ / MWUUYbBlF.2RUZK8nbWU0
title Red Hat Enterprise Linux AS (2.6.x-xx.EL)
………
Here we must note, password that must be added in the interim between the splashimage and title, or can not take effect.
Restart your machine, you will find you want to modify the grub menu, you must first press P and enter the correct password before they can continue.
Then attach a method of using sed to modify grub.conf, this method can be used to modify all of the server volume.

GRUB = / boot / grub / grub.conf
TEMP = / tmp / grub.conf
grep-v password $ GRUB cat $ TEMP | sed-e ‘s / hiddenmenu / hiddenmenu password – md5 $ 1 $ oWpTe $ / MWUUYbBlF.2RUZK8nbWU0 / g’ $ GRUB

Circular: a very special ring menu

admin — Sat, 04 Feb 2012 06:50:49 +0000

Such as drop-down menu, or pop-up menu, seen enough in Linux, maybe you will feel nothing. But, have you seen the ring menu it? Circular-Application-Menu (referred to as CAM) prototype program that brought the ring menu to your Linux desktop, so you ring in the operation of the menu items, from the appearance of the form is indeed feel quite special.

Circular for the GNOME desktop environment. In the Circular the project page you can find it to install and use, interested friends may wish to try.

To make Linux boot faster in the 10

admin — Fri, 03 Feb 2012 02:48:47 +0000

Need to restart Linux is rare. But when they need to start is often slow. Fortunately, there are some ways to speed up. Some of them are not too difficult. (However, unfortunately, there are some very difficult). Let’s take a look around it.
# 1: Undo the extra service according to use of the machine, many services are not needed. If Linux is only used as a desktop, you do not need sendmail, httpd, and many other services. If your server is a Web server, you can also turn off many services. To do this, go to the administration menu, check the services. Just do not want to start to undo all the service options.
# 2: Undo the extra desktop kernel module if you connect to Ethernet, you do not need the wireless kernel module loaded. This is a more difficult task, may need to recompile the kernel, and compile the kernel is not easy work to play. To this end, you probably need the kernel source code. Then, follow the standard steps for compiling the kernel. Difference is that you want to search the system, remove all the unnecessary modules.
Identification of the system currently installed and running kernel modules the best way is to install Bootchart. Not only does it give you a list of suitable modules, but also describes the system startup process is happening. Can issue the command: chkconfig list | grep 3: on, find out what services are running. Once you know what loading modules do not need, you can re-compile the kernel to remove them. As long as such a treatment, compile the kernel is completely suitable for your architecture.
# 3: Use a light window manager instead of GNOME or KDE, I inserted a small footprint window manager because – they significantly reduce the graphic (interface) start time. Instead of have to start GNOME or KDE to wait an extra 30 to 60 seconds, why not wait for Enlightenment or XFCE to start the 2-10 seconds it? They not only start saving time, will save memory and to save processing bloated software (bloatware) such a headache.
# 4: Use the text-based login, not graphical login Most of my Linux machines boot run level 3 instead of run level 5. This level will stop running in text mode login, I log on in this place and issue the startx command, began to select the desktop. Graphical login mode to do two things: increase load time and cause a headache for the poor that is trying to break out of X windows.
# 5: Do not use light loading heavy release Fedora, why not try Gentoo, Arch, or Puppy Linux do? These smaller releases more bloated than the start time of Fedora (or Ubuntu) to be much faster. In a large release, OpenSuSE claims the fastest start, but I have not personally tested. In the latest between Fedora and Ubuntu, Ubuntu beat the Fedora start-up time (and means that the use).
# 6: If you use OpenBIOS very smart and capable, ready to upgrade the PC’s firmware, making the move to open source BIOS. An additional note, the use of open Linux firmware allows initialization hardware starts the real (rather than rely on BIOS). Most importantly, many open BIOS can be set to meet the special needs of the machine. If the BIOS does not take the open road, at least you can set the BIOS does not find non-existent floppy drive, which directly start the first hard drive (not the CD drive first).
# 7: avoid the DHCP address lease if you are not a problem working in the home network (or small business network), then the machine will use a static IP address. This will make the machine do not have to go out to access the DHCP server to obtain an IP address. If you take this approach, we must ensure that the configuration file / etc / resolve.conf also express your DNS server addresses.
# 8: hot hot on the free-free to allow the new device is plugged in and immediately use the system. If you know your server does not need such a system, delete it. This will reduce startup time. In many systems, hot start-up time consuming. Exclude changes in hot-swap will be used depends on your distribution. Note: For the most part, udev has replaced hot. But if you are still running the old point release, this is still appropriate.
# 9: If they are bold and fearless, try initng initng system can act as a replacement material sysvinit system and promises complete UNIX-like operating system to reduce startup time. If you are willing to understand the operation of the initng system, you can try Pingwinek LiveCD.
# 10: If the code with the use of Debian are using Debian, there is a line can be used to convert your startup script to run in parallel simple code. If you check the / etc / init.d / rc script, you will see: there are about 24 line CONCURRENCY = none. This line to CONCURRENCY = shell, you may be witnessing the start-up time reduction.
Is probably the case. Of course, there is always more and better hacks in there. However, most of these should be the most important. The good news is that you most likely already running Linux, so little restart can generally reduce the burden of start-up time.
Original: http://blogs.techrepublic.com.com/10things/?p=387

Use Wine to run Google Chrome on Linux

admin — Thu, 02 Feb 2012 01:45:30 +0000

Although Google says Google Chrome browser will provide the Linux platform version, but still take time. If neither Windows system around you, and you want to hurry to experience Chrome, may wish to consider Linux via Wine to run it.
The following is a run Google Chrome on Linux steps:
1 Install Wine, be sure to use the latest version 1.1.3. 2 Download and install winetricks:

wget http://www.kegel.com/wine/winetrickssudo cp winetricks / usr / sbin
3 and Flash plug-in installation dependent:

winetricks riched20 riched30 flash
4 Install the fonts (optional):

winetricks allfonts
5 Download the Chrome installer:

wget http://gpdl.google.com/chrome/install/149.27/chrome_installer.exe
6 Install Chrome:

wine chrome_installer.exe
7 After the installation is complete, the first not to run Chrome, use a text editor to edit Google Chrome.desktop file:

Exec = env WINEPREFIX = “/ home / mimir / .wine” wine “C: windows profiles mimir Local Settings Application Data Google Chrome Application chrome.exe”
Change the contents of the above:

Exec = env WINEPREFIX = “/ home / mimir / .wine” wine “C: windows profiles mimir Local Settings Application Data Google Chrome Application chrome.exe” – new-http – in- process-plugins
Note that you need to replace them mimir into your user name.
8 back to the desktop, click the Google Chrome run the program.
Screenshot:

http://linuxtoy.org/archives/running-google-chrome-on-linux-with-wine.html

Building a Linux version of Google Chrome browser

admin — Thu, 19 Jan 2012 07:31:26 +0000

Chromium compilation instructions (Linux version)
This page describes the Linux operating system if the compiler to build Chromium browser. If you want to test chromium or chromium migration to other platforms please continue reading.
Tip: There is no running on Linux Chromium browser, although some sub-modules Chromium compiled in linux, and a small portion of the unit test before, all those are just a command “all tests pass” performed it!
Prerequisites
Note: The idea is that you can apply in any modern Linux distribution compiled to build Chromium, and we try to make every effort to compile lists the system prerequisites. Of course, you can live with the Linux port is also only in the beginning stages of this reality, and we in the majority of Linux distributions in the test is limited in Chromium within our development platform is Ubuntu8 (hardy heron) a variants, we hope you can have this platform in luck.
Linux platform can only need to compile the following software to build:
Subversion = 1.4 (Hint: If you are using a tarball (compressed format), change the code difficult to focus, you need version 1.5, we will fix it later) (translator: Subversion is an advanced version than CVS control software)
pkg-config = 0.20 (translator: pkg-config is developed with a library configuration tool)
Python = 2.4 (translator: Python programming language, here refers to the Python environment, tools)
Perl 5.x
gcc / g + + = 4.2
bison = 2.3 (translator: GNU bison parser conversion tools?)
flex = 2.5.34
gperf = 3.0.3
libnss3-dev = 3.12
In Ubuntu8 system, you can use the following command once to get all of the software:
$ Sudo apt-get install subversion pkg-config python perl g + + bison flex gperf libnss3-dev
Get the code
1 Select the compile directory.
In this document we will call this directory variable $ CHROMIUM_ROOT.
2 get the code library tool.
$ Cd $ CHROMIUM_ROOT
$ Svn co linux “> http://src.chromium.org/svn/trunk/depot_tools/linux depot_tools
(Or download. Tar.gz format archive file: depot_tools_linux.tar.gz)
In order to maintain the integrity of compiled documentation, we assume that your depot_tools directory in your build directory ($ CHROMIUM_ROOT), but its not necessary so you can place it anywhere, then your PATH environment variable or Other variables added to this path,
3, because many people are highly interested in temporary work led to our server can not access, try to download the code from the SVN snapshot, unzip it and follow the instructions under the code updates, you will be synchronized by gclient work to get the same results.
$ Cd $ CHROMIUM_ROO
$ Export LANG = C # temp workaround for gclient behavior
$. / Depot_tools / gclient config http://src.chromium.org/svn/trunk/src
$. / Depot_tools / gclient sync
Tip: By default, running gclient synchronization tool, depot_tools will be automatically updated to the latest version of the code (any time), turn off this behavior if you want to see depot_tools document pages.
Building
Compiled to build a subset of the current Chromium linux:
$ Cd $ CHROMIUM_ROOT / src / chrome
$ .. / Third_party / scons / scons.py Hammer
After compilation, the executable placed in $ CHROMIUM_ROOT / src / chrome / Hammer Catalog
Deal with the problem
sh: d: not found while processing Hammer / webkit / WebCore / xml / XPathGrammar.y
You do not have bison, we are patching the build script to use it more easy and friendly, but when you read this document, our code has not been updated to change the record!