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

Recommended minimum requirements

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.

Recommended for visual effects

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

1. Download the desired .img file

2. Download Disk Imager from https://launchpad.net/win32-image-writer/+download

3. Insert your flash media
4. Note the drive letter assigned to your flash media
5. Start Disk Imager
6. Select the downloaded file and target device, and click "Write"
7. 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

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

Recommended minimum requirements

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.

Recommended for visual effects

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

Bug in RHEL5

Consider the scenario:

1. You configure the PXE installation server in Redhat Enterprise Linux 5, which includes DHCP server, DNS server (Purely optional), TFTP server, NFS server and other package dependancy services (like xinetd) in one machine. Remember that you have to copy the entire DVD to the NFS location which is usually /var/ftp/pub.

2. Disable the IPtables (for newbies) or Post some specified IP Table rules which provides access for the port number 69 (tftp) (for advanced users), check in the client machine for installation.

3. Then Configure YUM server with the same /var/ftp/pub path, which has to use the same set of rpms.

4. You will get the bug, when you again use the installation server. It means that you can not use the same installation server path for YUM server. 

It is the bug in RHEL5.

Unix ToolBox Recommended for Sys Admins

You can visit http://cb.vu site, if you want to run some basic commands in bash shell. It is really working in Java Scripts. But the end-user may thing those are real bash shell. Colin Barschel maintains this site. It is having all Linux, Free BSD commands which is popularly known as Unix Tool Box recommended for System Administrators or/and Network Administrators.

He compiled some fun games like snake, matrix also in this site. I hope you will enjoy this like me.

Colin Barschel has given ssh also. But it requires Java's recent plug-in. 

You can download the latest Unix ToolBox html or pdf version from this site. Try it out and pour your comments on LinuxOcean.