Free ubuntu tweak hardy software for linux

Ubuntu Center is a web based interface for accessing all kinds of information thats being stored on your computer running Ubuntu Breezy, XUbuntu, Kubuntu or even nUbuntu box.
Ubuntu Center accomplishes all of this by integrating PHP software licensed under the GPL license in one giant package suitable for use on a Ubuntu computer. This release adds tons of new features and bug fixes and is suitable for everyday use.
Enhancements:
- A Web-based installer was implemented and an admin area was added.

UbuntuTrinux seeks to integrate elements (and code, where appropriate) of Trinux with the Debian/Ubuntu mkinitramfs infrastructure to allow easy development and packaging Ubuntu binary (and ultimately package and repository) compatible ramdisk distributions using recent 2.6.x kernels. As before, the most common use is network security monitoring and analysis.

Trinux: A Linux Security Toolkit was a ramdisk-based Linux distribution that was under active development from 1998-2003.

Booting Ubuntu To RAM is an article aims to document the process of creating a customized Ubuntu that loads an image from the hard disk to RAM, then boots an entire Ubuntu session out of RAM. It is intended for intermediate to advanced Ubuntu users who are familiar with the shell, and may have limited experience customizing the livecd (LiveCDCustomization) and shell scripting. We will customize a LiveCD and copy it to the hard drive, and make a few modifications to bootup scripts so that it copies to RAM via our good friend tmpfs.
WARNING: The author asserts that this procedure works for him, but cannot guarantee that this procedure works for anyone else. Although this procedure is meant to be 100% safe, it is feasible that there may be mistakes, or a chance of misunderstanding the instructions in a manner that causes loss of data. Please make a backup and do not attempt on mission critical systems. Read through this article thoroughly, and do not attempt if you do not comprehend or feel comfortable about any of the instructions!
CAUTION: I hope this is intuitively obvious, but Ill humor you and state it bluntly: Changes you make under the live session are NOT saved and WILL BE LOST when you reboot or shut down. Dont save anything important to the "home directory" and expect it to still be around! If you want to save data permanently, mount a permanent medium (such as your hard drive), plug in a thumbdrive, or use some network functionality built into Ubuntu to save your data to a non-volatile destination.
There are many cases where one would like to boot Ubuntu to RAM:
- Performance: The desktop performance is dramatically improved. A 400MB squashed filesystem in RAM, that holds 1200MB of data, is read back on a 1.6GHz Core Duo in about 3 seconds, including decompression time.
- Power, Noise, Durability: Although modern hard disks dont use much power compared to other system components, this may still be important for some. In laptops, hard disks are often the noisiest components, so this setup can reduce system noise. With the hard disk spun down, a laptop can potentially withstand greater shocks without damage.
- Abrupt poweroff: Since the hard disk is only momentarily used in read-only mode during boot, then never touched again, there are few or no negative consequences of an abrupt poweroff. If a system is used where power is inconsistent, or the system is regularly used in a context where fast shutoffs are required, this is very handy.
- Privacy: Anything you do in this session are lost when you reboot or power off. This is great for kiosks or other systems where permanent modification are not desired. (Note that by default the livecd user has full sudo access, so potentially a malicious user can still make permanent changes by mounting the hard drive and following this HOWTO)

Xubuntu community projects aim is to provide a nice Ubuntu desktop experience (even on older hardware) by using Xfce4 as the desktop environment and GTK+ 2 applications wherever possible.

Xfce4 has been supported in Ubuntus universe by the MOTUXfce team since Hoary and Breezy. For Dapper we want to go one step further and make Xubuntu a sibling of Ubuntu, Kubuntu, and Edubuntu by having install and live CD images generated for it.

As Ubuntu has a delay of six weeks with a new release date of the first of June, Xubuntu should be released at the same time and should use the latest stable Xfce 4.X code (hopefully 4.4 will be released by then).

Ubuntu Common Hooker project aims to provide an interface for unknown file extensions to automatically install a certain packages when its called.

Use cases

Eduard is a schizophrenic, however his only obession and a way to calm him down is listening to "Veronika Plays Piano, volume 1" which is encoded in MP3. Veronika is his friend who recently got a copy of Ubuntu Linux, and tried it on Eduards computer. However, Eduard just find out that he cant play his MP3s.

Dr. Igor use ".rar" extension to compress his research, however, Villete decides to migrate to Ubuntu Linux. But when Dr. Igor tryies to open "Vitriol.rar, and Zedka.rar", it says "Error cannot open file!"

Okonkwo tried Ubuntu Linux for the first time, however, when he tried to open "Wresting with Amalinze.mpg", he is prompted that "there are no codecs to view this file", However, Okonkwos father Onuka had no problems opening .mpg files, but Okonkwo doesnt like to use Windows like his father did.

i815 linux tweak project is i815-family chipset tweaker and optimizer for improve performance. Remember that some settings can crash your system.

USE AT YOUR OWN RISK

Installation:

From root user tpye "./install.sh".
If success, module will compile and plased into modules directory.

Usage:

modprobe i815tweak

Without any parameters nothing changes. In /proc/i815info you can see actual chipset settings.

Or see "dmesg" for error info..

For list all module parameters check "modinfo i815tweak".

cas=[2,3]
CAS# Latency (CL)

ras2cas=[2,3]
SDRAM RAS# to CAS# Delay (SRCD)

ras=[2,3]
SDRAM RAS# Precharge (SRP)

refX=[0-7]
SDRAM Mode Select (SMS). These bits select the operational mode of the MCH DRAM interface. The special modes are intended for initialization at power up.

0 = DRAM in Self-Refresh Mode, Refresh Disabled
1 = Normal Operation, 100 MHz System memory – Refresh interval 15.6 uSec
133 MHz System memory – Refresh interval 11.7 uSec
2 = Normal Operation, 100 MHz System memory – Refresh interval 7.8
133 MHz System memory – Refresh interval 5.85 uSec
3 = Normal Operation, 100 MHz System memory – Refresh interval 1.28 uSec
133 MHz System memory – Refresh interval 0.96 uSec
4 = NOP Command Enable. In this mode all processor cycles to SDRAM result in a NOP Command on the SDRAM interface.
5 = All Banks Precharge Enable. In this mode all processor cycles to SDRAM result in an All Banks Precharge Command on the SDRAM interface.
6 = Mode Register Set Enable. In this mode all processor cycles to SDRAM result in a mode register set command on the SDRAM interface.
7 = CBR Enable. In this mode all processor cycles to SDRAM result in a CBR cycle on the SDRAM interface.

dct57=[0, 1]
DRAM Cycle Time (DCT). This bit controls the number of SCLKs for an access cycle.
0 = Tras = 7 SCLKs and Trc = 9 SCLKs.
1 = Tras = 5 SCLKs and Trc = 7 SCLKs (Default)

bnr=[0,1]
Block New Request Lookahead

agp=[0,1]
AGP4X Override

sba=[0,1]
Sideband Address Enable (SBA)
1 = Enable. The sideband addressing mechanism is enabled.
0 = Disable

fw=[0,1]
Fast Writes Enable (FW). This bit must always be programmed to 0. The chipset will behave
unpredictably if this bit is programmed with 1.

cpc=[0,1]
Command per cycle

sm=[0,1]
SM Always Bypass

hacqs=[0,1]
Host Aperture Cycle Queue Slot
0 = Default value. No dedicated queue
1 = A dedicated queue slot is reserved

clt=[0,1]
CPU Latency Timer
0 = Deferrable processor cycle will be Deferred immediately after receiving another ADS#
1 = Deferrable processor cycle will only be Deferred after in has been held in a “Snoop Stall” for 31
clocks and another ADS# has arrived (default).

dpcp=[0,1]
DRAM Page Closing Policy (DPCP)
0 = Precharge All during the service of any “Page Miss” access.
1 = Precharge All during the service of any “Page Miss” access.

magwe=[0,1]
Memory Arbiter Grant Window Enable (MAGWE).
0 = Disabled. Enforce fixed priority.
1 = 24 clocks limiting host, 24 clocks guaranteed to low priority graphics stream.

EXAMPLE:

modprobe i815tweak cas=2 ras2cas=2 ras=2 bnr=1 dct57=1

For more info about i815 chipset settings see Intel Document Reference Number 290688-001, 290693-001 and 290693-002

Ubuntu is a complete Linux-based operating system, freely available with both community and professional support.

The Ubuntu community is built on the ideas enshrined in the Ubuntu Manifesto: that software should be available free of charge, that software tools should be usable by people in their local language and despite any disabilities, and that people should have the freedom to customise and alter their software in whatever way they see fit.

These freedoms make Ubuntu fundamentally different from traditional proprietary software: not only are the tools you need available free of charge, you have the right to modify your software until it works the way you want it to.

The team behind Ubuntu makes the following public commitment to its users:

* Ubuntu will always be free of charge, and there is no extra fee for the "enterprise edition", we make our very best work available to everyone on the same Free terms.
* Ubuntu includes the very best in translations and accessibility infrastructure that the Free Software community has to offer, to make Ubuntu usable by as many people as possible.
* Ubuntu is released regularly and predictably; a new release is made every six months. You can use the current stable release or the current development release. Each release is supported for at least 18 months.
* Ubuntu is entirely committed to the principles of free and open source software development; we encourage people to use free and open source software, improve it and pass it on.

Ubuntu is suitable for both desktop and server use. The current Ubuntu release supports Intel x86 (IBM-compatible PC), AMD64 (Hammer) and PowerPC (Apple iBook and Powerbook, G4 and G5) architectures.

Ubuntu includes more than 1,000 pieces of software, starting with the Linux kernel version 2.6 and Gnome 2.8, and covering every standard desktop application from word processing and spreadsheet applications to internet access applications, web server software, email software, programming languages and tools and of course several games.