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Page Sequence Problems

Posted by dboth on 18 Jul 2010 | Tagged as: Information

There are currently some problems with the way in which WordPress displays pages in the order I specify. As a result many pages do not appear in the order in which I would like them to appear.

This is not about the posts, of which this is one, but about the pages that appear in the Table Of Contents section in the right-hand column.

Please be patient as I try to get this problem resolved.

Fedora 13 is Now Available

Posted by dboth on 02 Jul 2010 | Tagged as: Information, News

Fedora 13 has been available for a few weeks now. I have started installing it on some of my systems and it seems to work very well.

The Internet upgrade procedure works well but it does take a bit of time. You won’t want to use this method unless you have a fast Internet connection. A standard installation from DVD works well also. There are some differences in the installation procedure, but they are welcome ones including the restoration of the old “minimal” install option, which will be good for creating routers and other appliances.

The latest version of KDE is also very nice and provides a couple interesting new features as well as some new and improved widgets.

I will try to write a more complete critique as time permits.

CDs and DVDs that Won’t Mount

Posted by dboth on 21 Aug 2009 | Tagged as: Information, Tips and Tricks

Have you ever had a CD/DVD, whether data, video or audio that would not mount or play? Me too.

Fedora Linux (and others) is supposed to recognize that a CD or DVD has been inserted into the drive, and the Device Notifier will pop up a small window that displays “Devices recently plugged in.” This allows you to open the device with Dolphin or some other application.

The Device Notifier window pops up when a new storage device is plugged in or inserted into a drive.

The Device Notifier window pops up when a new storage device is plugged in or inserted into a drive.

Sometimes you can insert a CD or DVD and nothing happens; it is as if the disk does not exist. This can happen if there is a problem with the disk itself or the drive. The most common reason for this problem is dirt or dust, although scratches can cause problems like this, too.

If the DVD drive is one that exposes the read/write head when it is open, such as the very thin ones used in laptops, you can clean the DVD drive read optics with a very soft camel hair brush, or use a can of compressed air to blow the dirt off the lens. Drive cleaning CDs can be used on other types of DVD drives. The other thing you can do is clean the bottom surface (the surface without the printing on it) of the CD or DVD with a soft, dry cotton cloth. Rubbing it on a clean cotton tee-shirt works well.

Warning about Lexmark Printers and Linux

Posted by dboth on 04 Aug 2009 | Tagged as: Articles, Information

If you are considering using Linux at any time in the near future, you should definitely not purchase a Lexmark printer of any kind. The company does not support Linux in any way and there are no working drivers of any kind available for most Lexmark printers.

I use Brother and HP for my printing needs and they work quite well. Even the HP All-in-one printers work very well. Xerox printers are also well supported and I have a large network attached Xerox copier/fax/printer working at one of my customers.

That is not to say you won’t have to do some fussing to get even some supported printers to print, but most Lexmark printers will never print under Linux.

Fedora Frog 1.0-11.0.0 released

Posted by dboth on 27 Jun 2009 | Tagged as: Information, Notifications, Software

This Bash program provides the Linux administrator an easy way to install applications not installed by default during a Fedora Core installation procedure, and applications that are not part of the standard distribution. It also tweaks some configuration items. Additional repositories are required beyond the normal Core, Updates, and Extras, and they can be added using Fedora Frog as well. Frog installs media players such as RealPlayer, Mplayer, VLC, Kaffiene and Xine. It also installs Thunderbird, Firefox, GNUCash, Adobe Reader and Yumex, and some things specifically for System Admins such as chkrootkit. Fedora Frog is currently supported on Fedora 10 and 11. Support for all previous versions of Fedora has been removed.

The latest version of Fedora Frog can be downloaded at https://sourceforge.net/projects/fedorafrog/

Fedora Frog Update

Posted by dboth on 16 Jun 2009 | Tagged as: Information, News

For those of you who are users of my Fedora Frog program, I am currently working on an update that will add support for Fedora 10 and 11 and remove support for all previous versions of Fedora. I am revising the list of packages that it installs because some of the older packages are no longer needed or in some cases have not been updated in a long time so are no longer relevant. In other cases I am adding packages that are now available through the new RPMFusion repositories. I hope to finish this major update within two weeks.

If you are not familiar with Fedora Frog, it provides the Linux administrator an easy way to install applications not installed by default during a Fedora installation procedure, and applications that are not part of the standard distribution. Additional repositories are required beyond the normal Fedora, and Updates. These additional repositories are automatically added using Fedora Frog as well.

When these updates are complete, Fedora Frog will be available for download from Sourceforge at https://sourceforge.net/projects/fedorafrog/. Previous versions of Fedora Frog are and will continue to be available there. Unfortunately some functions may not work because many of the repositories are no longer valid or the packages have been removed from the repositories. Use those old versions at your own risk.

DataBook® Troubleshooting Documents

Posted by dboth on 06 Jun 2009 | Tagged as: Information, News

I have recently finished adding some new documents to the Troubleshooting section of the DataBook for Linux Administrators. This includes some general troublesooting tips as well as some information on troublesooting ElectroMagnetic Interference (EMI) problems. Be sure to refer to this latter section on EMI problems if you are experiencing otherwise unexplainable and unresolvable symptoms.

Fedora 10 Installation Problems

Posted by dboth on 15 Feb 2009 | Tagged as: Information

I have now installed or upgraded to Fedora 10 on all but one of my computers. Some go very easily and others not so much. Today I upgraded the server that runs my email and all of my web sites including this one. It was not so easy. I was able to resolve the problems but it was not straightforward.

The symptoms were that I could ping the box but SSH would not work in either direction, I could not login to the GUI but I could login to the virtual consoles. For details on how I fixed this see the article “SSH and YUM Don’t Work After Fedora 10 Installation”. The root cause of this problem was that one critical RPM package was not installed during the upgrade.

The point is that I have had several problems during upgrades to Fedora 10 from Fedora 8, and a couple when just doing a basic install. Almost all installations failed to work correctly until all updates were installed. So be sure to install all updates to a Fedora 10 installation or upgrade before attempting to do productive work.

Kickstart Article Published in Linux Magazine

Posted by dboth on 01 Sep 2008 | Tagged as: Articles, Information

An article I co-authored with Bruce Garland, a co-worker at Cisco Systems, has been published in the June 2008 hardcopy issue of Linux Magazine. The article has just (August 2008) been put up on the Linux Magazine web site at:

http://www.linux-mag.com/id/6747/

Here also is a link to the article on this DataBook® web site Complete Kickstart.

Beware of Foxconn Motherboards

Posted by dboth on 25 Jul 2008 | Tagged as: Information

Foxconn is a motherboard manufacturer that is deliberately programming their BIOS to crash non-Microsoft operating systems, especially Linux.

Here is the link. Read for yourself and check out the disassembled BIOS code that this user found.

http://ubuntu-virginia.ubuntuforums.org/showthread.php?t=869249

Welcome to the new DataBook Web Site

Posted by dboth on 14 Jun 2008 | Tagged as: Information

A few weeks ago the original DataBook® website computer crashed beyond the possibility of repair, which is actually pretty cool since it had been up and running since 1995. Old backups were not able to be restored and so I needed to start over. This web site is the new DataBook web site.

From now on this web site will be primarily targeted to Linux.

Although the entire book DataBook for OS/2 has been lost, I will try to recreate it as time permits. I expect this to be a long and tedious process, so don’t look for much progress any time soon. If you have a specific request for some OS/2 data, please leave a comment and I will add that particular piece as quickly as I can research it and type it in.

DataBook is a registered trademark of David Both.