Red Hat Certified Datacenter Specialist

RHCVA/EX318…

RHCVA/EX318

Now I can upgrade my email signature at work!

Today I just ran through recreating that rpm from scratch again (no looking at the book) this includes writing the spec file. Oh, and this is after the instructor tells me today that emacs has a built in template for a spec file.. This template is something I had been searching for before I memorized all this stuff. oh well.

Here is my latest rpm

[john@localhost i386]$ rpm -qip antiword-0.37-.awesome.i386.rpm
Name        : antiword                     Relocations: (not relocatable)
Version     : 0.37                              Vendor: JOHN BRIER YELLING
Release     : .awesome                      Build Date: Mon 04 Jan 2010 11:19:58 PM EST
Install Date: (not installed)               Build Host: localhost.localdomain
Group       : Applications/Text             Source RPM: antiword-0.37-.awesome.src.rpm
Size        : 221844                           License: GPL
Signature   : (none)
Packager    : Totally Awesome
URL         : http://www.winfield.demon.nl/
Summary     : Antiword is a free MS Word reader for Linux and RISC OS.
Description :
Antiword converts the binary files from Word 2, 6, 7, 97, 2000, 2002 and 2003 to plain text and to PostScript TM.

To do this if your images are in ~/Pictures and you want to put the resized images in ~/Pictures/resized you can use a simple for loop like the following with the ‘convert’ command from the ImageMagick suite

Assuming you are already in ~/Pictures/ run the following:

for i in `ls *.jpg | xargs`; do convert $i -resize 800×600 ~/Pictures/resized/$i-resized.jpg; done;

If your original file was named original.jpg it will now be named original.jpg-resized.jpg

There is probably a way to make that output file name cleaner but I haven’t looked into it yet.

[ 731.855177] iwl4965: Radio Frequency Kill Switch is On:
[  731.855177] Kill switch must be turned off for wireless networking to work.
[  780.507448] iwl4965: Error sending REPLY_STATISTICS_CMD: enqueue_hcmd failed: -5
[  893.786560] iwl4965: Radio Frequency Kill Switch is On:
[  893.786560] Kill switch must be turned off for wireless networking to work.
[  893.793209] iwl4965: WARNING: Requesting MAC access during RFKILL wakes up NIC
[ 1005.863767] iwl4965: Radio disabled by HW RF Kill switch

okay seems pretty straight forward right? There is a bluetooth on/off switch on the left side of the U3S which only controls bluetooth even though it has the bluetooth symbol and wifi symbol on it. As it turns out I had been messing with the function keys on my laptop the night before. I actually had to pull out the manual and look at the section on switches and function keys before I realized I had probably inadvertantly turned off the wireless when playing with the function keys on Fedora 11 beta the night before. So now I realized FN + F2 would toggle the wireless RF.. However when I did this it would turn on the wireless light indicator for just a short bit.. a fraction of a second. I got it to stay on for a few seconds one time.

After messing with a bunch of stuff I wondered if the asus laptop specific modules loaded to support the specific features of my laptop (function keys in particular) might have something to do with this issue.

# lsmod | grep asus
asus_acpi 13852 0

so I removed that module
# modprobe asus_acpi -r
hit the FN + F2 and it stayed on and restarted network manager and i can get on wireless. I reloaded the module afterward and wireless kept working. I’m honestly not sure what exactly is going on but that fixed it. Normally the kernel module asus-laptop would be loaded as well but it wasn’t. This might be part of the problem. Either way I hope this helps someone.

rpm -qi shows Vendor so you can see who built the package and usually what repository it came from. To see similar info with Debian use ‘apt-cache policy package’ This will show an http:// url so you can tell what source it came from.

Here is the course outline if you’re interested in what the class/exam covers:

436 outline

$ ioquake3
./ioquake3.i386: error while loading shared libraries: libopenal.so.0: cannot open shared object file: No such file or directory

Make sure you have libopenal1 package installed and then make a symlink from /usr/lib/libopenal.so.0 to the actual library file.

# ln -s /usr/lib/libopenal.so.1.4.272 /usr/lib/libopenal.so.0

Run ldconfig just to be safe.

# ldconfig

ioquake3 now works.

I’m used to using autofs5 in RHEL 5 and newer Fedora versions but as it turns out autofs5 is not included in Debian Lenny/testing which I’m trying out at home. One of the issues I ran into with autofs4 is that you can’t mount the key directly under the root filesystem. You have to make the key under some other directory first. This behavior is described really well in this bug report against autofs4 on Fedora Core 3 https://bugzilla.redhat.com/show_bug.cgi?id=145533

Anyway if you want to get around that issue on Debian Lenny/testing it’s easy to just install autofs5 from the unstable branch this way:

# aptitude install autofs5/unstable

That command/syntax is explained on this page, section 6.2.6:

http://www.debian.org/doc/manuals/reference/ch-package.en.html

EDIT 2009-08-09:
You don’t have to do this anymore. Debian Lenny stable still seems to include autofs4 by default though. On Debian Lenny which is now stable just do ‘aptitude install autofs5′