Information for Linux newbies?
by Kevin Harrington
As i mentioned at the meeting this past week I am going to be giving a
seminar for linux newbies and would like to pull from people that
know better then i do on what i should teach people. What i would like
to know is: What are some things that you wish you had known as a
newbie? Think back to your very first linux install and any
short-cuts, tips, tricks, and gatcha's that would make peoples first
experience easier. There is a lot of windows resentment after the slow
trainwreck that is vista, so lets see if we can get a few new
converts!
P.S. one of the big concerns for a few people that i have talked to
has been games, if anyone has a list of new-ish games that work or any
tips specific to making the most recent generation work under linux,
that would make things much easier ;)
10 years, 7 months
reboot problem
by Gregory Avedissian
At the meeting before last, I asked about a problem I'm having with the
computer occasionally going to a black screen with no disk activity on
reboot, right after the grub menu goes away.
Overnight memtest showed no errors, I put a different vid card in, and
still had the black screen problem.
One of the things someone mentioned was to test the power supply.
Recently, I had a few hard lockups and a couple of spontaneous reboots.
So, how do I test my power supply, other than replacing it and seeing if
the problem goes away? Or is that evidence enough to change it ASAP?
According to lm-sensors, voltages are fine, and I've even sat and watched
gkrellm for long periods of time - they look stable.
Any suggestions would be appreciated.
Greg
10 years, 8 months
Any XMl-types out there?
by Stephen Daukas
Hello Everyone!
So, I have to teach myself myself XML, XSL, et al., for work... (The VB
stuff is in the background for now!) I started playing with XML yesterday,
and have gotten pretty far along. But... I have to deal with M$-generated
XML files that looks like the following (I added the first two lines for
display in a browser):
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="SOURCES.xsl"?>
<xml xmlns:s='uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882'
xmlns:dt='uuid:C2F41010-65B3-11d1-A29F-00AA00C14882'
xmlns:rs='urn:schemas-microsoft-com:rowset'
xmlns:z='#RowsetSchema'>
<s:Schema id='RowsetSchema'>
<s:ElementType name='row' content='eltOnly'>
<s:AttributeType name='ID305B' rs:number='1' rs:nullable='true'
rs:maydefer='true' rs:writeunknown='true'>
<s:datatype dt:type='string' dt:maxLength='50'/>
</s:AttributeType>
[snip]
<s:extends type='rs:rowbase'/>
</s:ElementType>
</s:Schema>
<rs:data>
<z:row ID305B='MA11002' CYCLE='2002' USE_ID='537' CAUSE_ID='226'
SOURCE_ID='180' CONFIRMED='N'/>
[~11,000 lines snipped]
So, I wrote the following SOURCES.xsl file to display this beast in a
browser (it uses recursion):
<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:rs='urn:schemas-microsoft-com:rowset'
xmlns:z='#RowsetSchema' version="1.0">
<xsl:template match="/">
<HTML>
<BODY topmargin="0" leftmargin="0">
<xsl:apply-templates select="/xml/rs:data"/>
</BODY>
</HTML>
</xsl:template>
<xsl:key name="rows-by-AU" match="z:row" use="@ID305B" />
<xsl:template match="z:row">
<xsl:apply-templates select="key('rows-by-AU', ID305B)" />
<div AU_ID="{ID305B}">
<xsl:apply-templates select="key('rows-by-AU', ID305B)" />
<div USE_ID="{CYCLE}">
<div USE_ID="{USE_ID}">
<xsl:value-of select="@ID305B"/>
(<xsl:value-of select="@CYCLE"/>):
<xsl:apply-templates select="key('rows-by-AU', USE_ID)"/>
<xsl:value-of select="@USE_ID"/> -
<xsl:value-of select="@CAUSE_ID"/> -
<xsl:value-of select="@SOURCE_ID"/>
</div>
</div>
</div>
</xsl:template>
</xsl:stylesheet>
And it works (surprised the hell out of me)! But now I'm having the hardest
time figuring out how to format this the way I'd like. This is how it
currently looks in the browser:
MA11002 (2002): 537 - 226 - 180
MA11002 (2002): 537 - 448 - 140
MA11002 (2002): 538 - 226 - 180
MA11002 (2002): 538 - 413 - 140
MA11002 (2002): 538 - 413 - 177
MA11002 (2002): 539 - 226 - 180
MA11002 (2002): 539 - 413 - 140
MA11002 (2002): 541 - 226 - 180
MA11002 (2002): 541 - 478 - 140
MA11002 (2002): 541 - 413 - 140
MA11018 (2002): 538 - 413 - 140
MA11018 (2002): 539 - 413 - 140
MA11018 (2002): 541 - 413 - 140
MA11019 (2002): 537 - 312 - 140
MA11019 (2002): 538 - 312 - 140
MA11019 (2002): 539 - 312 - 140
MA11019 (2002): 541 - 312 - 140
[... other IDs in between 2002 and 2008 ...]
MA11002 (2008): 537 - 226 - 180
MA11002 (2008): 537 - 478 - 92
MA11002 (2008): 537 - 312 - 156
[... thousands of additional IDs ...]
And I'd like the output to look something like:
MA11002 (2002): 537 - 226 - 180
- 448 - 140
538 - 226 - 180
- 413 - 140
- 177
539 - 226 - 180
- 413 - 140
MA11002 (2008): 537 - 226 - 180
- 478 - 92
- 312 - 156
[...]
So, things would need to be grouped by ID305B and CYCLE, then by USE_ID,
then by CAUSE_ID, then by SOURCE_ID.
But, I'd even settle for output that looks like:
MA11002 (2002): 537 - 226 - 180
MA11002 (2002): 537 - 448 - 140
MA11002 (2002): 538 - 226 - 180
MA11002 (2002): 538 - 413 - 140
MA11002 (2002): 538 - 413 - 177
MA11002 (2002): 539 - 226 - 180
MA11002 (2002): 539 - 413 - 140
MA11002 (2002): 541 - 226 - 180
MA11002 (2002): 541 - 478 - 140
MA11002 (2002): 541 - 413 - 140
MA11002 (2008): 537 - 226 - 180
MA11002 (2008): 537 - 478 - 92
MA11002 (2008): 537 - 312 - 156
[... thousands of additional IDs ...]
where the IDs from the two different years are adjacent to one another...
I believe this will involve much pain and suffering while I try to figure
out such things as XML nodes, grouping, sorting, and the like... But, I'm
hoping someone will look at this and say "boy Daukas, that's easy...
just do this, and then that, and voila - your done!".
Anyone? Anyone? ;-)
Thanks in advance for any help!
Steve
10 years, 8 months
Solaris automounter
by vze284qe＠verizon.net
Hi All,
At work I have a SunFire v245 (Sparc) running SunOs 5.10, which
I guess is Solaris 10. When I put a CD in the drive, it doesn't get
mounted. I checked to see if 'vold' was running and it was.
What else should I check for? I'm not too familiar with Solaris, so
any help is appreciated.
TIA,
-Chuck
10 years, 8 months
Xinerama issues with Fedora Core 8...
by Tim Keller
Hey Gang,
I had a perfectly working Fedora Core 6 system and I had to go mess things
up... I backed up my whole system and did a clean install of Fedora Core 8,
only to find that my >old< xorg.conf config doesn't work anymore...
I was able to get a config finally working, but only on a single monitor.
Here's my setup:
Screen 1: DELL LCD panel connected to an onboard AGP intel video card
Screen 2: DELL LCD panel connected to a PCI ATI Radeon video card
Now, I have config files that'll drive one or the other, but not both. The
moment I enable Xinerama, the X server crashes with a signal 11.
As far as I can tell... Xinerama support is totally borked in Fedora Core
8. Has anybody come across any solutions?
Thanks,
Tim.
--
I am leary of the allegiances of any politician who refers to their
constituents as "consumers".
10 years, 9 months
initrd.img file
by vze284qe＠verizon.net
Hello,
I built a custom "gutsy gibbon" kernel, but I can't find the
corresponding initrd.img file. There's a link in / that looks like this:
initrd.img-> boot/initrd.img-2.6.22-generic.
Shouldn't there be a new initrd.img file that was created when I built
the new kernel or am I missing something?
TIA,
--
-Chuck
10 years, 9 months
Linux Choix?
by Greater Worcester Land Trust
It has been a while.
I tried getting our nonprofit (Worcester land conservation) to adopt Linux
some years back.
Problem I had back then was weak graphic options, publisher options, Quicken
options, and a lack of a good answer to running ArcGIS.
I was beaten back into M$.
I want another crack at this.
I am looking to take a spare laptop and install a Linux OS and OS apps.
Previously, some years back, I used to use what are now Mandriva Linux
installs.
Coming back to this I see that there are dozens and dozens of options these
days.
What, if any, of the options do the WLUG folk prefer/recommend.
Thanks so much,
Colin
10 years, 9 months
Re: [Wlug] Xinerama issues with Fedora Core 8...
by Jamie Guinan
Can you downgrade the individual driver(s)?
See this thread from this morning,
http://lists.freedesktop.org/archives/xorg/2007-November/030311.html
-Jamie
On Mon, 19 Nov 2007, Tim Keller wrote:
> So... if I'm reading this right... I'm stuck then... since I have monitors
> on separate video cards.
>
> I know it's cool that xrandr can do all this funky stuff, but I'd just be
> happy to keep existing functionality.
>
> What are my options now... downgrade my X server?
>
> On Nov 19, 2007 1:34 PM, Chuck Anderson <cra(a)wpi.edu> wrote:
>
> > On Mon, Nov 19, 2007 at 01:07:54PM -0500, Tim Keller wrote:
> > > As far as I can tell... Xinerama support is totally borked in Fedora
> > Core
> > > 8. Has anybody come across any solutions?
> >
> > Xinerama is no longer supported in Xorg. But not to fear! It has
> > been replaced by a new, dynamic method of doing dual-head with the
> > XRandR extension. Unfortunately, neither the Release Notes nor the
> > system-config-display tool have taken these changes into account.
> > Also, this won't work with multiple separate video cards, only single
> > video cards with multiple output on them. The fact that the X server
> > segfaults when configured with Xinerama is a bug.
> >
> > You can turn on/off and configure multiple displays all dynamically
> > using the xrandr command. Try this to display the available outputs
> > while the X server is running:
> >
> > xrandr
> >
> > To configure a specific output, try these commands:
> >
> > xrandr --output DVI-1 --auto
> >
> > Or:
> >
> > xrandr --output DVI-1 --mode 1024x768
> >
> > To configure dual-head (NOTE: You have to pre-configure the maximum
> > combined virtual resolution you want to use in xorg.conf first, as
> > specified below):
> >
> > xrandr --output DVI-1 --right-of DVI-0
> >
> > This is nice because it means you can dynamically set up dual-head for
> > an external VGA port on a laptop going to an LCD projector, for
> > example. The internal LCD and external VGA could run at different
> > resolutions too.
> >
> > For more fun, you can play with rotating screen images.
> >
> > You can also configure this in xorg.conf. The key differences from
> > traditional multi-head and Xinerama are that you only use a single
> > Screen in your ServerLayout section:
> >
> > Section "ServerLayout"
> > Identifier "new dual-head configuration"
> > Screen 0 "Screen0" 0 0
> > InputDevice "Keyboard0" "CoreKeyboard"
> > EndSection
> >
> > Then refer to multiple monitors in the Device section. Here the
> > format is Option "Monitor-<actual-monitor-id-from-xrandr>"
> > "<monitor-identifier>"
> >
> > Section "Device"
> > Identifier "Videocard0"
> > Driver "radeon"
> > Option "Monitor-DVI-0" "first"
> > Option "Monitor-DVI-1" "second"
> > EndSection
> >
> > Then specify the multiple Monitor sections themselves, using the
> > monitor-identifiers specified above, with the placement options
> > RightOf or LeftOf:
> >
> > Section "Monitor"
> > Identifier "first"
> > EndSection
> >
> > Section "Monitor"
> > Identifier "second"
> > Option "RightOf" "first"
> > EndSection
> >
> > And then of course the single screen section. Note that you MUST
> > specify the Virtual resolution as the sum of the resolutions of the
> > multiple monitors you want to use (either horizontally or vertically,
> > depending on your preferred monitor orientation). So below I have
> > specified Virtual 3200 1200 so that I can place two 1600x1200 monitors
> > side-by-side. The Monitor "first" is there just to satisfy the
> > requirement for a Monitor to be specified--you don't put both monitors
> > here.
> >
> > Section "Screen"
> > Identifier "Screen0"
> > Device "Videocard0"
> > Monitor "first"
> > DefaultDepth 24
> > SubSection "Display"
> > Viewport 0 0
> > Virtual 3200 1200
> > Depth 24
> > Modes "1600x1200" "1600x1024" "1440x900" "1400x1050"
> > "1360x768" "1280x1024" "1280x960" "1280x800" "1280x720" "1152x864"
> > "1024x768" "800x600" "640x480"
> > EndSubSection
> > EndSection
> > _______________________________________________
> > Wlug mailing list
> > Wlug(a)mail.wlug.org
> > http://mail.wlug.org/mailman/listinfo/wlug
> >
>
>
>
> --
> I am leary of the allegiances of any politician who refers to their
> constituents as "consumers".
>
10 years, 9 months
Linux Choix?
by Colin Novick
Apologies. Deepest even.
Before anyone needs to chastise me I looked it up and OS X is more Next and
other sources than Linux per se.
Apparently Parallels on OS X will run Win and Lin, but the underlying OS is
OS X and does not imply that ArcGIS would be stably emulated by a Linux
machine emulating Win.
Sorry.
Hope not to have too terribly offended in my ignorance.
Colin
10 years, 9 months
Re: [Wlug] Information for Linux newbies?
by Mike Leo
Where the heck is everything?
http://tldp.org/LDP/intro-linux/html/sect_03_01.html has a nice chart
I think one thing that frustrates people is their relative path to everything...you can't cd /mike unless you're already in /home for instance.
Even from the GUI's, Windows people will start at C:\ and move around from there.
----- Original Message ----
From: Kevin Harrington <mad.hephaestus(a)gmail.com>
To: wlug(a)mail.wlug.org
Sent: Sunday, November 18, 2007 12:01:05 AM
Subject: [Wlug] Information for Linux newbies?
As i mentioned at the meeting this past week I am going to be giving a
seminar for linux newbies and would like to pull from people that
know better then i do on what i should teach people. What i would like
to know is: What are some things that you wish you had known as a
newbie? Think back to your very first linux install and any
short-cuts, tips, tricks, and gatcha's that would make peoples first
experience easier. There is a lot of windows resentment after the slow
trainwreck that is vista, so lets see if we can get a few new
converts!
P.S. one of the big concerns for a few people that i have talked to
has been games, if anyone has a list of new-ish games that work or any
tips specific to making the most recent generation work under linux,
that would make things much easier ;)
_______________________________________________
Wlug mailing list
Wlug(a)mail.wlug.org
http://mail.wlug.org/mailman/listinfo/wlug
10 years, 9 months
