Friday, December 11, 2009

Redhat Enterprise Linux 5 & Acer 5315 - a perpetual R&D


I installed Redhat Enterprise Linux 5 in my Acer 5315 laptop. But the GUI is not able to configured since the laptop screen is very large one, which is diagonally measured 15 inches. Then the Ethernet card is also not detected. So I cannot move further with this.

I installed Ubuntu 9.04 which works good with all the devices. I am able to use even the integrated camera also.

The GUI problem is related to the screen resolution that can be tolerable professional like me. But the network card detection problem is not normal. I can wake my Acer 5315 up, if the network card works good. Then I can go for further research.

I googled a lot on this query. But the the problem persists. Finally I came to that RHEL5 is not for Acer 5315, however I am still doing my R&D on this. Pour your valuable suggestions in this regard.

Monday, December 7, 2009

Boot RHEL from USB

The following steps configure a USB pen drive as a boot medium to start the installation of Red Hat Enterprise Linux.
  1. Attach the USB pen drive to a system which is already running Red Hat Enterprise Linux.
  2. Run
  3. dmesg
  4. From the dmesg output, identify the device name under which the drive is known to the system.
    Sample messages for a 1 Gb flash disk being recognized as /dev/sdb:
  5. Initializing USB Mass Storage driver... scsi2 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 5 usb-storage: waiting for device to settle before scanning usbcore: registered new driver usb-storage USB Mass Storage support registered. Vendor: USB 2.0 Model: Flash Disk Rev: 5.00 Type: Direct-Access ANSI SCSI revision: 02 SCSI device sdb: 2043904 512-byte hdwr sectors (1046 MB) sdb: Write Protect is off sdb: Mode Sense: 0b 00 00 08 sdb: assuming drive cache: write through SCSI device sdb: 2043904 512-byte hdwr sectors (1046 MB) sdb: Write Protect is off sdb: Mode Sense: 0b 00 00 08 sdb: assuming drive cache: write through sdb: sdb1 sd 2:0:0:0: Attached scsi removable disk sdb sd 2:0:0:0: Attached scsi generic sg1 type 0 usb-storage: device scan complete
  6. Note: For the remainder of this article, we will assume this device name to be /dev/sdb. Make sure you adjust the device references in the following steps as per your local situation.
  7. At this point, the flash drive is likely to have been automatically mounted by the system. Make sure the flash drive is unmounted. E.g. in nautilus, by right-clicking on the icon for the drive and selecting Unmount Volume.
  8. Use fdisk to partition the flash drive as follows:
    • There is a single partition.
    • This partition is numbered as 1.
    • Its partition type is set to 'b' (W95 FAT32).
    • It is tagged as bootable.
  9. Format the partition created in the previous step as FAT:
  10. mkdos /dev/sdb1
  11. Mount the partition:
  12. mount /dev/sdb1 /mnt
  13. Copy the contents of /RedHat/isolinux/ from the first installation CD/DVD onto the flash drive, i.e. to /mnt.
    Note: the files isolinux.bin, boot.cat and TRANS.TBL are not needed and can thus be removed or deleted.
  14. Rename the configuration file:
  15. cd /mnt/; mv isolinux.cfg syslinux.cfg
  16. Copy the installer's initial RAM disk /RedHat/images/pxeboot/initrd.img from the first installation CD/DVD onto the flash drive, i.e. to /mnt.
  17. Optional step: To configure any boot settings, edit the syslinux.cfg on the USB flash drive. For example to configure the installation to use a kickstart file shared over NFS, specify the following:
  18. linux ks=nfs:://ks.cfg
  19. Unmount the flash drive:
  20. umount /dev/sdb1
  21. Make the USB flash drive bootable. The flash drive must be unmounted for this to work properly.
  22. syslinux /dev/sdb1
  23. Mount the flash drive again:
  24. mount /dev/sdb1 /mnt
  25. Install GRUB on the USB flash drive:
  26. grub-install --root-directory=/mnt /dev/sdb1
  27. Verify that the USB flash drive has a /boot/grub directory. If it does not, create the directory manually.
    cd /mnt
    mkdir -p /boot/grub
  28. Create the grub.conf file. Below is a sample grub.conf:
    default=0
    timeout=5
    root (hd1,0)
    title Red Hat Enterprise Linux installer
    kernel /vmlinuz
    initrd /initrd.img
  29. Copy or confirm the created grub.conf file is on the /boot/grub/ directory of the USB flash drive.
  30. Unmount the flash drive:
  31. umount /dev/sdb1
  32. At this point, the USB disk should be bootable.
  33. Attach the USB disk to the system you wish to install Red Hat Enterprise Linux on.
  34. Boot from the USB disk. Refer to the hardware vendor's BIOS documentation for details on changing the order in which devices are checked for booting from.
  35. Once you are booted in the Red Hat Enterprise Linux installer, continue with your network installation of your choice.
---------
Courtesy: Redhat.com
Reference: http://kbase.redhat.com/faq/docs/DOC-10553

Ubuntu / Google has to fix up Gtalk voice chat issue



There is no proper voice chat available in all Linux flavours generally except IBM Sametime. The search engines' giant Google's Gtalk is also having the issue still with all Linux flavours.

Ubuntu bots and Google lovers eagerly waited for the solution. But still the issue persists with the recent Ubuntu 9.10 also.

This issue has to be set right by Google only not by Ubuntu 9.10 However, Ubuntu has to pour some suggestions, which provides the solution to Google Gtalk team.

The thing has to happened correctly. But when waiting for Ubuntu bots and Google lovers valuable suggestions...

Tuesday, November 17, 2009

Ubuntu 9.10 available


Ubuntu 9.10 is available in the official Ubuntu website now.

Salient points:

1. Upgrade is recommended.
As per the Ubuntu community up-gradation is advisable. Refer it up for up-gradation: http://www.ubuntu.com/getubuntu/upgrading

2. New features
Refer http://www.ubuntu.com/products/whatisubuntu/910features for getting new features of the latest Ubuntu.

3. Download link: http://www.ubuntu.com/getubuntu

Sunday, September 20, 2009

A new presentation on Ubuntu

This is new presentation on Ubuntu with various screenshots.

http://pnaprasanna.blog.co.in/files/2009/09/present.pdf

Saturday, September 5, 2009

Red Hat Enterprise Linux 5.4 launched

The newer version of RHEL (RHEL5.4) is launched, which can be updated easily by using yum command.

The steps to update RHEL5.3 to RHEL5.4
:

# uname -a
# yum update


Reboot the server:

# reboot

Check the working status:

# uname -a
# netstat -tulpn
# tail -f /var/log/messages

Features:

The new version includes the kernel-based virtual machine (KVM) virtualization, next generation of developer features and tools including GCC 4.4, a new malloc(). Also included clustered, high-availability filesystem to support Microsoft Windows storage needs on Red Hat Enterprise Linux.

The official Redhat Enterprise Linux 5.4 white paper:

http://pnaprasanna.blog.co.in/files/2009/09/rh_rhel_5p4.pdf

video

Ubuntu Promises



1. Ubuntu will be free forever even Enterprise editions also.

2. It requires 4 GB Harddisk space and 256MB minimum RAM, However, the diskspace is not sufficient if more number of software are installed in the / partition.

3. Ubuntu CD can be ordered for free of cost as well as free to download.

4. All updates for Ubuntu is free.

Thursday, September 3, 2009

Convert wine theme into Human clear theme in Ubuntu 9.04



Observe these following lines for changing the theme.

[Control Panel\\Colors]
"ActiveBorder"="239 235 231"

"ActiveTitle"="210 141 70"
"AppWorkSpace"="177 170 163""Background"="0 0 0"
"ButtonAlternateFace"="181 181 181""ButtonDkShadow"="115 106 96""ButtonFace"="239 235 231"
"ButtonHilight"="253 250 248"
"ButtonLight"="239 235 231"

"ButtonShadow"="179 175 171"
"ButtonText"="0 0 0"

"GrayText"="179 175 171"
"Hilight"="248 206 140"
"HilightText"="0 0 0"
"InactiveBorder"="239 235 231"
"InactiveTitle"="239 235 231"
"InactiveTitleText"="60 60 59"
"InfoText"="0 0 0"
"InfoWindow"="239 235 231"
"Menu"="239 235 231"
"MenuBar"="239 235 231"

"MenuHilight"="248 245 242"

"MenuText"="0 0 0"

"Scrollbar"="203 193 183"
"TitleText"="255 255 255"
"Window"="255 255 255"

"WindowFrame"="0 0 0"

"WindowText"="0 0 0"

1. Go to the home directory of the specified user.
2. Copy the above lines into the file vi .wine/user.reg
3. Then view the wine window. It will be in a new Ubuntu theme, which is the default of the Ubuntu 9.04.

Monday, August 31, 2009

Picasa in Ubuntu 9.04


If you have a Picasa window open, or you have the Picasa icon in your toolbar, please close them before installing a new version.
If you're using a recent version of Linux, you should be able to pick "Open With Default Application" or double-click on the downloaded .deb file to install.
If that doesn't work, save the file in the /tmp directory, then open a terminal window and install with a command like

$ sudo dpkg -i /tmp/picasa_2.7.3736-15_i386.deb
or
$ su
# dpkg -i /tmp/picasa_2.7.3736-15_i386.deb
# exit

Starting Picasa
Start Picasa by looking in your Linux distribution's Graphics menu. If you can't find it there, give the command /usr/bin/picasa in a terminal window. Tips

  • This package is only for 32-bit Debian / Ubuntu systems. If you are using 64-bit Debian / Ubuntu, please install the 64-bit .deb package.
  • If you use NFS, when Picasa first starts, click File / Add Folder. Unselect your NFS shares from the watched list. Otherwise Picasa can get bogged down scanning all your network directories!
  • To get Picasa to see pictures on your hard drive, click "File / Add Folder" (NOT "Import").
  • When adding a folder to Picasa, the default action is to remove the folder from Picasa. You have to actively choose Scan once or Scan always.
  • Picasa is not supported over remote X connections.
Wow, Picasa found all my photos!
When you start Picasa, it instantly goes to work, organizing all the pictures on your hard drive by date in the "Folders on Disk" collection. If Picasa finds folders you don't want, go into File > Add Folder to tell it which folders to scan once, scan always or remove. To remove individual pictures from your library, simply select a photo and right-click to delete it permanently from your computer or hide it from Picasa.
Courtesy: Google

Saturday, August 29, 2009

Necessary commands for going with Ubuntu 9.04 smoothly like Windows

I used to run these following commands after installing Ubuntu 9.04 for running important stuff.

1. sudo apt-get update to update all packages with the current patches, which are indispensable for security issues.

2. sudo apt-get install firestarter for installing the GUI firewall that helps to share the existing Internet connection to the other network as well as filtering

3. sudo apt-get install vlc vlc-plugin-esd mozilla-plugin-vlc is used to install VLC player for entertainment.

4. sudo wget http://media.codeweavers.com/pub/crossover/chromium/cxchromium_0.9.0-1_i386.deb for installing Google Chrome browser in Ubuntu 9.04.

5. sudo apt-get install wine to install wine software that is used for running windows applications in Ubuntu 9.04.

6. sudo passwd root to reset the password of root user in Ubuntu 9.04.

7. sudo apt-get install usb-imagewriter to install software for writing into the USB stick.

Install these plug-ins also for going smooth browsing with Ubuntu 9.04

1. Install flash plug-in for firefox then run youtube.com

2. Install Java plug-in for firefox then run lakecards.com

Sites can refer for Ubuntu utils:

1. http://www.getdeb.net

2. http://www.stchman.com/tools_page.html

3. http://samanathon.com/how-to-install-microsoft-office-2007-in-ubuntu-804/
for installing Microsoft Office 2007 in Ubuntu

Additional Packages

1. Ubuntu Tweak for new tips and tricks.

2. http://www.virtualbox.org/wiki/Linux_Downloads for installing virtual box to run virtual machines in Ubuntu 9.04

3. apt-get install virtualbox-3.0 to install virtual box in Ubuntu 9.04

4. apt-get install firefox-3.5 for install the latest firefox in Ubuntu 9.04

5. apt-get install unrar-free to install winrar in Ubuntu 9.04

Wednesday, August 5, 2009

Ubuntu 9.04 has to be fixed these issues in future at least ?


I have been using Ubuntu 9.04 but not from the very beginning of its launch. But these limitations are found with in couple of weeks that I had been through.

1. Gtalk widget is not supporting for voice chat eventhough the webcam is working good with other interfaces. This is experimented with other chat clients and web interfaces also. (instances,meebo.com,Pidgin Instant messenger) But still the issue persists. The message This OS is not supported for Voice chat might have been noticed by Ubuntu as well as Gtalk lovers. Some Ubuntu forums bragging that Gtalk can be voiced and viewed with Ubuntu 9.04. Refer it up if possible (http://www.ubuntugeek.com/howto-setup-voice-chat-with-google-talk-user-using-empathy.html)

2. Only 4GB and 256MB is enough for using Ubuntu 9.04. though this is mentioned by Ubuntu, once in 11 hours the OS has to be restarted by manually to rectify the slow process, for instance, in case of torrent download is going on in the Internet. The famous Transmission client is also getting the same issue. It would be fixed if 6GB alloated for / partition, I suppose.

3. Eventhough the beta version of Chrome is working good in Ubuntu 9.04, the plugins for Java and flash have not been launched sofar. Eventhough this issue is closely coupled with Google, Ubuntu has to be taken care of.

Sunday, July 26, 2009

Wine for Ubuntu and Ubuntu derivatives

Ubuntu Logo Wine for Ubuntu and Ubuntu derivatives Ubuntu Logo

Ubuntu and other Debian-based distributions utilize a special tool for managing packages known as APT. APT is able to automagically install all of the needed dependencies for a software package, as well as keep the package up to date, by scanning what are known as APT repositories. Ubuntu has its own repository of software that includes Wine, however we keep our own repository of the latest available beta packages here for download.

Warning: These are beta packages

The packages here are beta packages. This means they will periodically suffer from regressions, and as a result an update may break functionality in Wine. If the latest stable release of Wine (currently Wine 1.0.1) works for you, then you may not want to use these beta packages.

Adding the WineHQ APT Repository:

Open the Software Sources menu by going to System->Administration->Software Sources. Then select the Third Party Software tab and click Add.
Administration->Software Sources->Third Party Software" width="531" border="0" height="509">
Then, copy and paste one of the lines below depending on which version you are running.
For Ubuntu Jaunty (9.04):
deb http://wine.budgetdedicated.com/apt jaunty main #WineHQ - Ubuntu 9.04 "Jaunty Jackalope"
For Ubuntu Intrepid (8.10):
deb http://wine.budgetdedicated.com/apt intrepid main #WineHQ - Ubuntu 8.10 "Intrepid Ibex"
For Ubuntu Hardy (8.04):
deb http://wine.budgetdedicated.com/apt hardy main #WineHQ - Ubuntu 8.04 "Hardy Heron"

Trusting the WineHQ APT Repository and installing Wine:

After adding the repository, you also need to add the key for the repository to your system's list of trusted keys.
Download and save Scott Ritchie's key (right click -> save as) to your desktop. Then open the Authentication tab, click import key file, and select the key file you just saved (Scott Ritchie.gpg). It is safe to delete this file after doing this step.
Administration->Software Sources->Authentication" width="531" border="0" height="509">
Click close to finish, and then reload the package information when prompted. If you have Wine installed, the system's update manager will now inform you of the latest Wine beta release and prompt you to upgrade. If you haven't installed Wine yet, go to Applications->Add/Remove and search for Wine or just click this link.

Upgrading to a new version of Ubuntu

If you are upgrading the entire system, such as going from Ubuntu 8.04 to 8.10, you will need to come back to this page and add the repository for the new version above. The built in update manager will not switch the Wine repository automatically.

Older .deb packages

Since the APT repository can only hold the latest packages, older versions of the packages are available at the WineHQ .deb packages archive.
You can install downloaded packages by double-clicking on them.

Alternative command Line Instructions for Installing Wine:

It is also possible to add the Wine repositories and install via the command line, as follows. These may be useful on Kubuntu, Xubuntu, and other Ubuntu derivatives.
First, open a terminal window (Applications->Accessories->Terminal). Then add the repository's key to your system's list of trusted APT keys by copy and pasting the following into your terminal:
wget -q http://wine.budgetdedicated.com/apt/387EE263.gpg -O- | sudo apt-key add -
Next, add the repository to your system's list of APT sources:
For Ubuntu Jaunty (9.04):
sudo wget http://wine.budgetdedicated.com/apt/sources.list.d/jaunty.list -O /etc/apt/sources.list.d/winehq.list
For Ubuntu Intrepid (8.10):
sudo wget http://wine.budgetdedicated.com/apt/sources.list.d/intrepid.list -O /etc/apt/sources.list.d/winehq.list
For Ubuntu Hardy (8.04):
sudo wget http://wine.budgetdedicated.com/apt/sources.list.d/hardy.list -O /etc/apt/sources.list.d/winehq.list
Then update APT's package information by running 'sudo apt-get update'. You can now install Wine normally or by typing 'sudo apt-get install wine' into the terminal.

Google's Chorme Browser works good in Ubuntu 9.04 - Installation Procedure

First you need to download .deb package from here using the following command
wget http://media.codeweavers.com/pub/crossover/chromium/cxchromium_0.9.0-1_i386.deb
Now you have cxchromium_0.9.0-1_i386.deb package install this package using the following command
sudo dpkg -i cxchromium_0.9.0-1_i386.deb
Using Ubuntu PPA
First you need edit /etc/apt/sources.list file
sudo gedit /etc/apt/sources.list
Add the following two lines
deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main
save and exit the file
Now add the GPG key using the following command
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xfbef0d696de1c72ba5a835fe5a9bf3bb4e5e17b5
Update source list
sudo apt-get update
Install chromium browser using the following command
sudo apt-get install chromium-browser
This will complete the installation
If you want to open chromium go to Applications->CrossOver Chromium->Chromium
Chromium web browser in action

Ubuntu 9.04 which is upgraded from 8.10 is working good in Lenovo 3000 G430

Lenovo 3000 G430 is recently upgraded from Ubuntu 8.10 to 9.04 for test basis in one fine Saturday. It really works good and of course the for accessing webcamera the VLC Player is used in that specified one.

The touchpad is not working good. Then the USB mouse is added for easy handling the objects in the version.

The following command has to be supplied for get to know the version of Ubuntu linux.

arivu@arivu-laptop:~$ sudo lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 9.04
Release: 9.04
Codename: jaunty

Ubuntu 9.04 which is upgraded from 8.10 works good in Acer 5315

Ubuntu 9.04 works good which is upgraded from Ubuntu 8.10 in Acer 5315 that contains all devices including touchpad, wireless and webcamera.

Ubuntu 8.10 is recently upgraded to Ubuntu 9.04 in my Acer 5315 laptop. It took 6 hours time to reach the final configuration. It supports all devices which are inbuilt in the machine.

Wireless works good:
The wireless is also working good but the light is not buring. The important point of this version is also not supported the integrated web camera. But I achieved in a round about way that is used through VLC Player which is designed for accessing integrated devices also.

The steps for illustration are as follows:
$ sudo apt-get update
$ sudo apt-get install vlc vlc-plugin-esd mozilla-plugin-vlc
simple to do then the new item will be added into the following menu list

Applications->Sound & Video->VLC Player

that can be used for accessing webcamara as well as TV tuner cards.
  • Be sure that you have all updates applied to Ubuntu 8.10 before you upgrade
Procedure to follow to upgrade Ubuntu 8.10 to Ubuntu 9.04:
To upgrade from Ubuntu 8.10, press Alt+F2 and type in “update-manager -d” (without the quotes) into the command box.

Update Manager should open up and tell you: New distribution release ‘9.04′ is available. Click Upgrade

This will show you Ubuntu 9.04 Jaunty Jackalope Release notes click on upgrade

Downloading Upgrade tool in progress

Preparing for upgrade in progress

If you are using any third party sources in your /etc/apt/sources.list file it will be disabled at the time of upgrade process click close

Setting new software channels in progress

Starting the upgrade process window click on Start Upgrade

Downloading the new Packages in Progress

Installing Packages in Progress


Installing Packages Progress in Terminal

Automatic crash reports configuration file replacement option click on Replace

Cleaning Up process in Progress


Remove obsolete packages window click on remove

You need to restart the system to complete the Upgrade by clicking “Restart Now”

Courtesy: http://www.ubuntugeek.com/

Thursday, July 16, 2009

Ubuntu Ultimate Edition


The customized edition of Ubuntu is available in torrent which can be downloaded from this link.

This version is the customized version of Ubuntu 8.10 edition which contains the following features.
  • Customized based on Desktop Environment (KDE, GNOME, XFCE, etc.)
  • Customized based on country/language/religion
  • Customized with extra applications/drivers/multimedia codecs
  • Customized for a specific purpose (scientific, forensic, academic, etc.)

Monday, July 13, 2009

Five major features of Redhat 5.3 - 64 bit;- Torrents available


The recent edition of Redhat5.3 64 bit edition is available in Torrent site freely which is having the original key and free online support.

Five major features of RHEL 5.3

1. ext4 file system support
2. 730 bugs fixed after RHEL 5
3. ALSA Support for new hardware also
4. Included enhanced lot of server RPMS.
5. Latest Kernel kernel-2.6.18-128.el5.src.rpm

There are plenty of special features included in RHEL5.3. The link following leads to go over there.


Refer the following link for download it


Sunday, July 12, 2009

Microsoft really scared about Ubuntu 9.0.4 - Ten reasons


The following ten reasons are made to get scared Microsoft about Ubuntu 9.0.4

1. It is launched three different colors (Desktop, Server and Netbook)
2. It supports ext4. Even Redhat people are doing research in ext4 to implement in that. But Ubuntu 9.0.4 did it
3. It supports ntfs file system in a fastest manner.
4. It is user friendly like Microsoft Windows.
5. It boots 21.3 seconds in normal systems.
6. 4 GB Disk space and 256 MB Ram is sufficient to run this effectively.
7. Online updation and upgradations are available.
8. VLC Player support which is used to play almost anyfile format can be updated easily through internet with this.
9. Wine can be installed for accessing MS-Office and other exe formats.
10. It can be installed by using 1GB USB stick memory with 384 RAM in atom processors which netbooks won't have DVD drives usually.

Ubuntu 9.0.4 64 bit edition works good


Recently I downloaded Ubuntu 9.04-64 bit edition from the torrent site. It really works good. I want to share the torrent link with you. If you install this in ext4 format, It will be faster than the operating system that is installed by ext3 format file system. It boots in 21.3 seconds approaxmately as per the latest Ubuntu forum which sounds great now. It will be able to handle fastly files which is upto 16 terabytes.

Find the link & download the latest edtion with 64 bit of Ubuntu.

Converting ext3 to ext4

It is possible to mount both ext3 (and ext2, in kernels 2.6.28 and later) filesystems directly using the ext4 filesystem driver. This will allow you to use many of the in-core performance enhancements such as delayed allocation (delalloc) and multi-block allocation (mballoc), and large inodes if your ext3 filesystem have been formatted with large inodes as is the default with newer versions of e2fsprogs. Simply mounting an ext3 (or ext2) filesystem with a modern (2.6.27+) version of ext4 will not change the on-disk structures, and it is possible to revert to the ext3 (or ext2) driver should there be any problem with ext4. If you plan to use the ext4 driver to boot from an ext2/3 partition, and you compile your kernel without the ext2/3 drivers, you may need to add rootfstype=ext4 to the kernel command line.

In addition to the in-core performance enhancements, there are additional features which modify the on-disk format from what ext3 understands, such as extents, which can significantly improve the ext4 filesystem performance, but mean the filesystem cannot be mounted by kernels that do not support ext4. There are additional ext4 features, such as flex_bg and > 16TB filesystem support that can only be enabled at format time via mke2fs.

To change an ext2 filesystem (should you still have one) to ext3 (enabling the journal feature), use the command:

# tune2fs -j /dev/DEV

To enable the ext4 features on an existing ext3 filesystem, use the command:

# tune2fs -O extents,uninit_bg,dir_index /dev/DEV

WARNING: Once you run this command, the filesystem will no longer be mountable using the ext3 filesystem!

After running this command, you MUST run fsck to fix up some on-disk structures that tune2fs has modified:

# e2fsck -fpDC0 /dev/DEV

Notes:

  • by enabling the extents feature new files will be created in extents format, but this will not convert existing files to use extents. Non-extent files can be transparently read and written by Ext4.
  • If you convert your root filesystem ("/") to ext4, and you use the GRUB boot loader, you will need to install a version of GRUB which understands ext4. Your system may boot OK the first time, but when your kernel is upgraded, it will become unbootable.
  • WARNING: It is NOT recommended to resize the inodes using resize2fs with e2fsprogs 1.41.0 or later, as this is known to corrupt some filesystems.
Courtesy: wiki

Ubuntu 9.0.4 Supports Ext4 file system


Ubuntu is really doing good in the matter of launching new ideas very soon in implementation. They implemented ext4 file system in the latest operating system Ubuntu 9.0.4. Recently the Fedora live CD is launched for its latest edition. But it really has Ubuntu in the backend. So the system engineers are really thought that there will be only three operating systems which will be expecting to occupying the desktops and netbooks (laptops) in the future. Those will be as follows:
1. Windows
2. Ubuntu
3. Chorme (the upcoming Operating System which is going to be launched by Google)

Friday, April 24, 2009

Ubuntu 9.04 is launched


This time three different versions has been launched by Ubuntu. (i.e., Ubuntu 9.0.4)

1. Desktop Edition
2. Netbook Remix Edition - for small screen netbooks
3. Server Edition

Requirements for Desktop Edition:

  • A blank CD and the ability to “burn” blank CDs
  • A modern Intel or AMD compatible computer
  • At least 256MB of RAM

Bare Minimum requirements

It should be possible to get Ubuntu running on a system with the following minimum hardware specification, although it is unlikely that the system would run well. You should use the Alternate install CD to attempt such an installation.
  • 300 MHz x86 processor
  • 64 MB of system memory (RAM)
  • At least 4 GB of disk space (for full installation and swap space)
  • VGA graphics card capable of 640x480 resolution
  • CD-ROM drive or network card
Ubuntu should run reasonably well on a computer with the following minimum hardware specification. However, features such as visual effects may not run smoothly.
  • 700 MHz x86 processor
  • 384 MB of system memory (RAM)
  • 8 GB of disk space
  • Graphics card capable of 1024x768 resolution
  • Sound card
  • A network or Internet connection
Note: All 64-bit (x86-64) PCs should be able to run Ubuntu. Use the 64-bit installation CD for a 64-bit-optimised installation.
Visual effects provide various special graphical effects for your desktop to make it look and feel more fun and easier to use. If your computer is not powerful enough to run visual effects, you can turn them off and will still have a usable Ubuntu desktop.
Visual effects are turned on by default if you have a graphics card which is supported. For information on supported graphics cards.
  • 1.2 GHz x86 processor
  • 384 MB of system memory (RAM)
  • Supported graphics card
Netbook remix Edition Requirements:
Before writing your flash, it is highly recommended that you verify the md5 sum (hash) of the .img file. For instructions, please seeHowToMD5SUM. For the current list of Official Ubuntu MD5 hashes, see the MD5SUMS file for the release you're using underhttp://releases.ubuntu.com (and optionally the PGP signatures in the MD5SUMS.gpg file), or see UbuntuHashes. This ensures that the file was not damaged during the download process and is 100% intact.

Windows

Graphical Interface

win32imagewriter.jpg
  1. Download the desired .img file
  2. Insert your flash media
  3. Note the drive letter assigned to your flash media
  4. Start Disk Imager
  5. Select the downloaded file and target device, and click "Write"
  6. Remove your flash media when the operation is complete

Command Line Interface

  1. Download the desired .img file
  2. Download flashnul from http://shounen.ru/soft/flashnul
  3. Attach your USB drive
  4. Run flashnul -p
  5. Note the physical device number for the USB drive
  6. Run flashnul  -L \path\to\downloaded.img
  7. Answer "yes" if the selected destination device is correct
  8. Remove your USB drive when the command completes

Ubuntu

Graphical Interface

usb-imagewriter.png
  1. Download the desired .img file
  2. Install the usb-imagewriter package
    • If your release does not include this, download it from Oliver's PPA
  3. Open Applications -> Accessories -> Image Writer
  4. Insert your flash media
  5. Select the downloaded file and flash device, and click "Write to Device"
  6. Remove your device when the operation is complete

Command Line Interface

  1. Download the desired .img file
  2. Open a terminal and insert your flash media
  3. Look at the output of dmesg | tail -20 to determine the device node assigned to your flash media (e.g. /dev/sdb)
  4. Run sudo umount /dev/device/node
  5. Run sudo dd if=/path/to/downloaded.img of=/dev/device/node bs=1M
  6. Remove your flash media when the command completes

Mac OS X

Command Line Interface

  1. Download the desired .img file
  2. Open a Terminal (under Utilities)
  3. Run diskutil list to get the current list of devices
  4. Insert your flash media
  5. Run diskutil list again and determine the device node assigned to your flash media (e.g. /dev/disk2)
  6. Run diskutil unmountDisk /dev/device/node
  7. Execute sudo dd if=/path/to/downloaded.img of=/dev/device/node bs=1m
  8. Remove your flash media when the command completes

Server Edition Requirements:

Bare Minimum requirements

It should be possible to get Ubuntu running on a system with the following minimum hardware specification, although it is unlikely that the system would run well. You should use the Alternate install CD to attempt such an installation.
  • 300 MHz x86 processor
  • 64 MB of system memory (RAM)
  • At least 4 GB of disk space (for full installation and swap space)
  • VGA graphics card capable of 640x480 resolution
  • CD-ROM drive or network card
Ubuntu should run reasonably well on a computer with the following minimum hardware specification. However, features such as visual effects may not run smoothly.
  • 700 MHz x86 processor
  • 384 MB of system memory (RAM)
  • 8 GB of disk space
  • Graphics card capable of 1024x768 resolution
  • Sound card
  • A network or Internet connection
Note: All 64-bit (x86-64) PCs should be able to run Ubuntu. Use the 64-bit installation CD for a 64-bit-optimised installation.
Visual effects provide various special graphical effects for your desktop to make it look and feel more fun and easier to use. If your computer is not powerful enough to run visual effects, you can turn them off and will still have a usable Ubuntu desktop.
Visual effects are turned on by default if you have a graphics card which is supported. For information on supported graphics cards.
  • 1.2 GHz x86 processor
  • 384 MB of system memory (RAM)
  • Supported graphics card