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Shadow's Home Page(last updated 06/29/2009) |
This site runs on GlassFish. |
 Say hello to my little friend! |
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My name's Glenn Holmer, and I'm a Java programmer living in Milwaukee, Wisconsin, USA (this is where I live). I can be reached by email as gholmer at ameritech.net. The picture at left is me with some of the machines I'm responsible for at work. You can also see my astrological birth chart if you like (don't tell me Pluto isn't a planet). |
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Computer History Museum
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Commodore 64
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NetBeans
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Linux
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OpenSolaris
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Yogyakarta
If you're ever in Silicon Valley,
be sure to visit
the Computer History
Museum. They've got displays that will knock your socks off,
from centuries-old slide rules, to the underground behemoths
that watched the skies during the Cold War. They've even got a
piece of ENIAC!
One of their latest acquisitions is a reconstruction of Charles
Babbage's Difference
Engine.
I'm a long-time Commodore 64
enthusiast; in fact, most of this site consists of
information about this great little machine that's still so much
fun to use. There are software and documentation downloads,
programming tips, and pictures of exotic hardware. You'll also
find photos from Commodore shows around the US and Canada in
recent years, where all are welcome to join in the Commodore
goodness. You can find all this from
the main Commodore page.
I'm an
active member of the NetBeans community, and was part of
the NetCAT
(Community Acceptance Testing) program for the 3.6, 4.0, 4.1,
5.0, and 6.0, 6.5
and 6.7
releases. I am also a past member of the
NetBeans Dream Team.
Happy
10th birthday,
NetBeans!
NetBeans 6.7 was released on 06/29/2009; here's where
you
can download
it. Here's a list
of features;
you can find
more here. There's
an excellent introductory
screencast
here, and more are
available here.
"NetBeans really is the center of Sun
Microsystems." --Jonathan Schwartz, October 2008
I've been
a Linux user since 1995, starting with Slackware. I
switched to SUSE in 1998
after seeing it at the Linux Expo in Raleigh, and stuck with it
for ten years. In mid-2008, I switched to
Ubuntu; this server is
running Ubuntu 9.04. Here are some Linux tips 'n'
tricks: Ubuntu 9.04 ("Jaunty Jackalope") is the current
release, and I've installed it on all of my machines. It's a
much better release than 8.10 ("Intrepid Ibex"), although a few
minor issues remain. This one's a keeper, folks.
This is an article
about booting multiple operating systems
with GRUB (the GRand Unified Bootloader). The article
discusses GRUB in general terms, and focuses on its relation to
the master boot record (MBR), partition table, and partition
layout on disk. A list of reference links is provided at the
end. It was written to summarize what I learned during an
exchange of messages on the mailing list of
the Milwaukee Linux Users
Group (MLUG), of which I'm a member. If you're in the
Milwaukee area, feel free to come to one of our meetings;
everyone is welcome! Here are some instructions for creating
a GRUB boot
floppy for your system in case of emergency. If you can't print from Java programs in Ubuntu, try
opening the printer setup panel (System / Administration /
Printing), and for each printer, go to the Job Options tab and
change the orientation from "Automatic rotation" to "Portrait
(no rotation)". Note: This is no longer necessary
in Ubuntu 9.04. In Ubuntu (using GNOME with Compiz), if you add more
desktops but there are no entries for them in the keyboard
shortcut menu (Preferences / Keyboard Shortcuts), you can
manually edit this file and add them: If GRUB is giving you the message "Error 28: Selected
item cannot fit into memory" when you try to load memtest on a
newer machine, it's not his fault. For an excellent description
of the problem,
see this
message attached to Debian bug
report 319837. The
solution is to write memtest directly to a floppy (i.e. not to a
filesystem on the floppy) and boot from there. If you're too
modern to have a floppy drive, you're on your own! Here's the
simple command that will do it:
I've
become very interested in OpenSolaris, especially since
the release of 2009.06
and the presentations I saw about it at
Community
One. Although still a newbie, I'd like to add tips 'n'
tricks for Linux users here, since there are a lot of
differences.
I had trouble figuring out how to set up my networked HP
DeskJet printer. I didn't want to go back and
re-learn
~/.gconf/apps/metacity/global_keybindings/%gconf.xml
(Note that this file may not exist until you have made some
changes to the default shortcuts, so make sure to change one
first so you have something to copy and paste. You may also need
to log out and back in again for the new shortcuts to take
effect.) Note: This bug still exists in Ubuntu
9.04. cat /boot/memtest.bin > /dev/fd0
lp, so I followed these steps:
SUNWcups).print-service -s cups.socket://hostname:9100 (where
"hostname" is the hostname or IP address of your
printer)