Linux-Misc Digest #108, Volume #27 Wed, 14 Feb 01 08:13:03 EST
Contents:
Re: File system/Superblock problems ("Eric")
Re: The procedure of configure scripts ("Nils O. Sel�sdal")
Re: Linux Threads - Why are all the file descriptors duplicated? ("Nils O. Sel�sdal")
Re: Very odd behaviour of Forte 4 Java ("Nils O. Sel�sdal")
Re: netcrap locks me up ("Peter T. Breuer")
Re: Verify crontab, please ("Peter T. Breuer")
Re: soundcard under debian! (elmig)
Re: Unable to handle kernel NULL pointer (Carsten Huettl)
Re: Intruder (Jean-David Beyer)
Re: XScreenSaver and NVidia OpenGL (Andrew Robbie)
Linux drivers for GPS time server hardware (Datum PCbus card - bc62xat) ..... anyone
??? ("Andre Ferreira")
Re: Mail Server Newbie (Jean-David Beyer)
Re: Mail Server Newbie (Jean-David Beyer)
Re: Command Line Napster Client? (Francis 'Dexter' Gois)
debian 2.2 unstable (Gerald Willmann)
VESA energy saver with a new 2.4.0 kernel? (Otto J. Makela)
----------------------------------------------------------------------------
From: "Eric" <[EMAIL PROTECTED]>
Subject: Re: File system/Superblock problems
Date: Wed, 14 Feb 2001 10:50:50 +0100
"David Richard Larochelle" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> My linux file system seems to be corrupted.
> When I try to boot I get a kernel panic unable to mount root file system.
>
> I tired booting off a rescue disk and running e2fsck but I get something
> like:
> e2fsck: Bad magic number in super-block while trying to open /dev/hdb1
>
> The superblock could not be read or does not describe a correct ext2
> filesystem. If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate superblock:
> e2fsck -b 8193 <device>
>
> I've tried running e2fsck with -b 8193 and with -b 16385 but I still get
> the same message. I added 8192 and repaeted this about 5 more times but
> still no luck.
try one of the following superblock locations:
32768
98304
163840
Eric
------------------------------
Reply-To: "Nils O. Sel�sdal" <[EMAIL PROTECTED]>
From: "Nils O. Sel�sdal" <[EMAIL PROTECTED]>
Subject: Re: The procedure of configure scripts
Date: Wed, 14 Feb 2001 10:58:05 +0100
"Mladen Gavrilovic" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi all,
>
> Does anyone know how configure scripts check for libraries? I'm trying
> to compile something that requires Qt, but the configure script doesn't
> detect the libraries.
>
> I'm not using KDE, but GNOME.
the QTDIR variable should be specified before you configure / compile..
as should the KDEDIR
so..in /usr/lib make a symlink to the current qt
ln -s qt-2.2.3 qt
put /usr/lib/qt/lib in your ld.so.conf
put the following script in /etc/profile.d/
#!/bin/sh
export QTDIR=/usr/lib/qt
export PATH=$PATH:$QTDIR/bin
export KDEDIR=/usr
call it e.g. qt.sh
chmod 755 qt.sh
source /etc/profile.d/qt.sh
ldconfig
now you are ready to compile..
------------------------------
Reply-To: "Nils O. Sel�sdal" <[EMAIL PROTECTED]>
From: "Nils O. Sel�sdal" <[EMAIL PROTECTED]>
Subject: Re: Linux Threads - Why are all the file descriptors duplicated?
Date: Wed, 14 Feb 2001 10:59:49 +0100
"Nick Knight" <[EMAIL PROTECTED]> wrote in message
news:3a899953$2$avpx$[EMAIL PROTECTED]...
> Are there any experts on Linux threading handy?
>
> In stress-testing some code on Linux recently, I ran into a resource
> issue. It seems that by running a multithreaded (fairly heavily) server
> application, massive amounts of file descriptors were being used. Some
> quick checking and it appears that each thread is duplicating all file
> descriptors of the parent thread. This can quickly eat up the entire
> resources of our boxes.
Are you sure they duplicate the filedescriptors... not that they are shared
by
all threads as i would expect ?
------------------------------
Reply-To: "Nils O. Sel�sdal" <[EMAIL PROTECTED]>
From: "Nils O. Sel�sdal" <[EMAIL PROTECTED]>
Subject: Re: Very odd behaviour of Forte 4 Java
Date: Wed, 14 Feb 2001 11:10:42 +0100
"alan simes" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> I decided to use Suns Forte Java development IDE for my Java
> develoment....
>
> Couldnt understand why the hell it was so dam slow on my Linux OS, PIII
> 700 with 128mb of RAM.
>
> Believe it or not it creates 30 <- Yes 30 seperate 34mb Java instances
> as it is running!!!!!
NO IT DONT..
These are Threads !! they ALL share the SAME 34 MB memory..
Anyway 128MB is not much, id reccomend getting 256 MB if you plan
to do some serious work with forte..
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: netcrap locks me up
Date: Wed, 14 Feb 2001 11:32:39 +0100
The Real Bev <[EMAIL PROTECTED]> wrote:
> One serious problem: whenever I try to create a new user, it doesn't
> work. Not with useradd or adduser with all the bells and whistles, not
In what sense? Editing /etc/passwd and adding a new line works fine.
You can use an editor, or cat >>. If you feel so inclined you can mkdir
/their/homedir too. And chown foo it.
> with yast or yast2. And I seem to remember a lot of people complaining
> that they could ONLY run netscape as root.
Then they are complaining that they don't have a single braincell.
Netscape is a userspace application. It doesn't care who runs it.
That's why you CAN run it as root ...
> Three years and still alive. So far, so good, and way better than win9*.
.. and of course you know why you shouldn't. You really hate those
512MB core files all over your system tree don't you! And then there
are the vicious javascript attack pages. Seen the one with the roaring
bear?
Peter
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: Verify crontab, please
Date: Wed, 14 Feb 2001 12:29:59 +0100
Robert Jones <[EMAIL PROTECTED]> wrote:
> "Peter T. Breuer" wrote:
>> Robert Jones <[EMAIL PROTECTED]> wrote:
>> > [root@localhost rj]# crontab -l
>> > # DO NOT EDIT THIS FILE - edit the master and reinstall.
>> > # (/tmp/crontab.20475 installed on Tue Feb 13 06:00:08 2001)
>> > # (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp
>> > $)
>> > */5 * * * * /usr/sbin/init
>>
>> > Looks like I'm running init every 12 seconds.
>>
>> man cron/crontab. That's not every 5 seconds!
> Better yet, "man what-the-hell-does-'/'-usually-mean". I plead
> pre-breakfast insanity. Can we settle on every 5 minutes or 12 times/hour?
Sorry, I misthought, I meant "not every 12 seconds". The man page is
precise on what it means. It's the first of your alternatives.
>> It is curious, through. Man init for more info. It should have an
>> argument, possibly "q".
> "q" would make sense except that "q" or "Q" appear to be valid arguments
[for telinit]
I believe init tolerates q fine, though obviously it can depend on the
build!
> SYNOPSIS
> /sbin/init [ 0123456Ss ]
> /sbin/telinit [ -t sec ] [ 0123456sSQqabcUu ]
> I guess what I was really wondering is how it came to pass that that line
> is even there.
No idea. The strongest possibility is that you did it, somehow. Most
of the crontab is a stock comment. It looks like the touch
/etc/cron.running line was replaced, possibly in an absent-minded
moment!
Peter
------------------------------
From: [EMAIL PROTECTED] (elmig)
Crossposted-To: comp.os.linux.hardware
Subject: Re: soundcard under debian!
Date: 14 Feb 2001 12:02:32 GMT
[EMAIL PROTECTED] (Nicolas Bouche) wrote in
<[EMAIL PROTECTED]>:
>
>Hey,
>
>I have a sounbcard -creative ensoniq PCI32- with the chip 1371. I am
>running debian (no 'cause i like it, but because i have to) 2.2.17.
>I was able to configure the kernel and i can listen to any mp3, or radios!
>(with realplayer for instance). However, i can't record anything?!?
>The mic is plugged in and has been tested!
>Any clue?
>
>Is it a hardware problem or software?
>
>Thanks
>
>NB
>
>
chech /dev/dsp /dev/mixer /dev/audio for permissions. See if it`s only
read-only or read-write.
Good luck
+----------------------------------------------+
| elmig |
| http://www.alunos.ipb.pt/~ee3931 |
| mailto:[EMAIL PROTECTED] |
+----------------------------------------------+
------------------------------
From: [EMAIL PROTECTED] (Carsten Huettl)
Subject: Re: Unable to handle kernel NULL pointer
Date: Wed, 14 Feb 2001 08:16:54 GMT
On Mon, 12 Feb 2001 07:20:56 -0500, Jean-David Beyer
<[EMAIL PROTECTED]> wrote:
>
>I would guess memory problems, at least as the first thing to check. If
>that is not it, possibly hard drive or hard drive controller problems.
>You are sure you have not been cracked, right?
>
Memory seems to be OK.
I have tested RAM with AMI DIAG 4.51
Found no Problems.
C.
------------------------------
From: Jean-David Beyer <[EMAIL PROTECTED]>
Subject: Re: Intruder
Date: Wed, 14 Feb 2001 07:20:14 -0500
Rod Smith wrote (in part):
>
> [Posted and mailed]
>
> In article <QSki6.33308$[EMAIL PROTECTED]>,
> "rc" <[EMAIL PROTECTED]> writes:
> > I noticed that the a-hole created 2 or 3 users that were hidden. I removed
> > them and closed the ftp access. I am not sure what else to do. Does anyone
> > know if sendmail works behind a firewall?
>
> 8) Install an intrusion detection tool like Tripwire.
8a.) Run Tripwire to populate the needed reference files. Tripwire does
not do any good unless those reference files, protected by a Site
Passphrase and a Local Passphrase, are in place.
--
.~. Jean-David Beyer Registered Linux User 85642.
/V\ Registered Machine 73926.
/( )\ Shrewsbury, New Jersey
^^-^^ 7:15am up 16 days, 15:42, 4 users, load average: 2.10, 2.11, 2.07
------------------------------
From: Andrew Robbie <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.x,comp.os.linux.setup
Subject: Re: XScreenSaver and NVidia OpenGL
Date: Wed, 14 Feb 2001 23:25:10 +1100
> "Brian C. Kiefer" wrote:
>
> > Hello all,
> >
> > Has anyone been able to get the OpenGL screensavers that come with
> > Xscreensaver to work with an Nvidia graphics card which has verion .96
> > of the kernel and glx driver installed?
> >
Using the xlock from xlockmore-gl all the OpenGL screensavers work
for me. This is Debian potato upgraded to 'testing' with the NVidia
0.96 driver and a Creative GF2MX card.
However, for some reason these screensavers leak alot of memory. If
I do something like 'xlock -modelist allgl -delay 15' then my machine
with thrash itself to death within 10 minutes (128MB RAM, 256MB swap).
Also, I can only run some OpenGL things as root, not sure why. I'd
suggest you startx from a root console then run your OpenGL program.
Cheers,
Andrew
In article <[EMAIL PROTECTED]>, Jesse Wyant
<[EMAIL PROTECTED]> wrote:
> I haven't tried xscreensaver yet, but I have gotten xlockmore to work
> perfectly fine (RedHat 7.0.9 "Fisher" distro.) using the NVIDIA GL
> libraries. Although, the Sproingies mode is now almost too fast. I need
> to see if I can hack the code to insert delays etc.
>
> In theory though, if the app. uses libGL.so, they should benefit from the
> NVIDIA library. (Or so that's what I've seen, running Quake2, AlephOne,
> glload, xlockmore, and the MesaDemos.)
>
> (I'm using kernel 2.4.1, NVIDIA drivers 0.96, XFree86 4.0.2, and a
> LeadTek Geforce2 GTS card.)
>
> -jesse
>
>
> --
>
> Jesse Wyant
> ------------------------------------------------------------
> You scratch my tape, and I'll scratch yours.
>
>
>
------------------------------
From: "Andre Ferreira" <[EMAIL PROTECTED]>
Subject: Linux drivers for GPS time server hardware (Datum PCbus card - bc62xat) .....
anyone ???
Date: Wed, 14 Feb 2001 14:18:24 +0200
Hi there
I am trying to make use of one of the above cards in my Redhat 6.2 box. Does
anybody have drivers for the bc627at ???
Thanks
Andre
------------------------------
From: Jean-David Beyer <[EMAIL PROTECTED]>
Subject: Re: Mail Server Newbie
Date: Wed, 14 Feb 2001 07:28:03 -0500
Rod Smith wrote (in part):
>
> In article <96cc27$pte$[EMAIL PROTECTED]>,
> Jeremiah DeWitt Weiner <[EMAIL PROTECTED]> writes:
> > James Horvath <[EMAIL PROTECTED]> wrote:
> >
> >> I have installed sendmail (but haven't gotten too far with configuring it
> >> yet (do I even need this? Would qmail be a better option for a rookie?)),
> >
> > Urk. I do this sort of stuff for a living, and I don't recommend
> > sendmail for _anybody_, unless you happen to need some of the more specialized
> > capabilities of sendmail - which I doubt you do. qmail or Exim are much
> > easier to deal with.
>
> I'm not a big sendmail fan myself, but it does have one big advantage
> for most Linux users: It comes with most Linux distributions.
[snip]
> This means that sendmail is up and running
> with little or no effort on most systems.
Since I use Red Hat (6.2.3 at the moment), this is almost true. While
sendmail is up and running, it does not work the way I want because the
sendmail.cf is not suitable for me. Also, the version is only 8.9.3-20,
which is out of date.
So, I download the latest source from http://www.sendmail.org/ and build
it myself.
But a second big advantage is that there is Usenet group:
comp.mail.sendmail where a group of extremely knowledgeable people
rapidly answer questions. There are also a few people in this newsgroup
that can do the same, but the other is the appropriate one. (Of course,
there is probably a newsgroup for qmail and Exim as well, but I never
looked.)
--
.~. Jean-David Beyer Registered Linux User 85642.
/V\ Registered Machine 73926.
/( )\ Shrewsbury, New Jersey
^^-^^ 7:20am up 16 days, 15:47, 4 users, load average: 2.05, 2.08, 2.06
------------------------------
From: Jean-David Beyer <[EMAIL PROTECTED]>
Subject: Re: Mail Server Newbie
Date: Wed, 14 Feb 2001 07:32:16 -0500
Michael Heiming wrote:
>
> James Horvath wrote:
>
> > I am looking to set up a simple Linux mail server at home to collect email
> > from a number of POP3 accounts, store them on a "mail hub" machine, and
> > allow access to those messages from Microsoft Outlook 2000 (on a Windows
> > 2000 Pro machine).
> >
> > I have Mandrake Linux 7.2 (minimal install) on a Pentium Celeron 400MHz with
> > 32MB RAM.
> >
> > I have installed sendmail (but haven't gotten too far with configuring it
> > yet (do I even need this? Would qmail be a better option for a rookie?)),
> > and fetchmail (which is able to successfully collect my mail from a variety
> > of accounts and store it on the linux box). I setup local DNS on the linux
> > machine, and can ping the mailhub from the Windows machines.
>
> If sendmail is on your box and running, I asume you just want it to forward all
>
> your outgoing mail to your ISP mail server, just edit /etc/sendmail.cf and put
> this in:
>
The experts on comp.mail.sendmail really disfavor diddling
/etc/sendmail.cf (which is no longer there, but in /etc/mail/sendmail.cf
anyway in the newer versions of sendmail), but recommend editing the
simpler sendmail.mc file instead. The comparable line would be:
dnl Use your.isp.neme as "smart" relay host. (19.6.47)
define(`SMART_HOST', `your.isp.name')
and then re-run m4 to generate the new sendmail.cf file.
> # "Smart" relay host (may be null)
> DS<your_ISP_mailserver>
>
> Don't touch anything else in this file, unless you are absolutly sure what
> you're doing.
> Now reload sendmail with it's startup files:
>
> /sbin/init.d/sendmail reload
> or
> /usr/sbin/rcsendmail reload
>
> Send some mails and check
> /var/log/mail
>
> If you have problems post the output!
>
> >
> >
> > My question is, what do I need to setup to read my mail from my Windows
> > machine using Outlook 2000? I can read it from Linux using Kmail, etc., so
> > I know the transfer from the POP accounts worked fine. As stated I can ping
> > the mailhub (using either the IP address or the name (mailsys.mydomain.com))
> > from the Windows machine, but Outlook states it can't connect with the
> > mailhub. Do I need NIS? NFS? Samba? Sendmail? Procmail? Something
> > else?
> >
> > TIA,
> >
> > James
>
> For POP3 you could go with qpopper from eudora as other suggested, it's easy to
> setup
> and comes with detailed instructions.
>
> Only problem could be your usage of Outlook, which is prone to make trouble, I
> would
> use something different, pegasus or eudora MUA have both more features than
> anyone
> needs and work without any problems.
>
> Good luck
>
> Michael Heiming
--
.~. Jean-David Beyer Registered Linux User 85642.
/V\ Registered Machine 73926.
/( )\ Shrewsbury, New Jersey
^^-^^ 7:25am up 16 days, 15:52, 4 users, load average: 2.08, 2.08, 2.07
------------------------------
From: Francis 'Dexter' Gois <[EMAIL PROTECTED]>
Subject: Re: Command Line Napster Client?
Date: Wed, 14 Feb 2001 13:59:35 +0100
Nap seems to have a lot of scripting tools (commands and tests). I only
use list and pdown. But did somebody write a script for nap ? What did
he do ? How did it look like ?
"M.Knight" wrote:
>
> In article <[EMAIL PROTECTED]>,
> "Ken Liu" <[EMAIL PROTECTED]> wrote:
> > There is a command-line only napster client called Nap.
> >
> > You can probably find it on www.freshmeat.net or www.rpmfind.net
> > It's got a pretty high learning curve, but once you get used to it,
> > its really fast and easy.
> >
> > Hope this helps.
> >
>
> Been using it all week. It works great. Thanks for your help.
>
> -Michael
>
> --
> COMBAT AIRCRAFT: A mix Michael David Knight F-4 |Phantom II
> of sharp teeth, cold Gulfstream Aerospace /O\
> steel, cosmic warlords, Georgia Tech Aerospace \_______[|(.)|]_______/
> and evil spirits Anti-Spam in Effect o ++ O ++ o
>
> Sent via Deja.com
> http://www.deja.com/
--
+--------------------+ +----------------------------------------------+
-Got this blue screen- -- Keep the Internet FREE with Tiscalinet --
- once again - - ------ Be GNU : have a Linux attitude :-) ------
+--------------------+ +----------------------------------------------+
- _+-------------------+ Francis 'Dexter' Gois
\-/ / \-/ / - Already tried to - Tiscali Belgium System
Administrator
(_�~ ~�_) -install GNU/Linux ?- mailto : [EMAIL PROTECTED]
/ \ / \ +-------------------+ Phone +3224000920 - fax +3224000899
------------------------------
From: Gerald Willmann <[EMAIL PROTECTED]>
Subject: debian 2.2 unstable
Date: Wed, 14 Feb 2001 13:51:39 +0100
Hi there: last summer I installed Debian 2.2 about one week before it was
declared stable - and stable it was until last weekend.
Last week I did apt-get upgrade and on Monday I booted it for the first
time after a scheduled power outage that weekend.
Now the system lasts about a day and then from one second to the next
every single program segfaults.
I have no clue why - can't find anything in the logs - and would really
appreciate any suggestions on how to figure out what is wrong.
Three finger salute doesn't work (presumably shutdown segfaults, too) and
login as root or su doesn't work so I had to do a hard reboot each time.
Sshd gives disconnect with error 11/13 and upon login attempts I get
respawning too fast.
Is there any way to downgrade back? Should I try the unstable branch?
many thanks, Gerald
PS: system is a PIII 650 w/ buslogic bt958 and ibm uw disks, matrox g400,
smc ethernet and pci128 soundcard but as I said I had uptimes of several
months on this exact hardware.
------------------------------
Crossposted-To:
sfnet.atk.linux,comp.os.linux.hardware,comp.os.linux.setup,alt.os.linux.redhat,redhat.config,comp.os.linux.x
Subject: VESA energy saver with a new 2.4.0 kernel?
From: [EMAIL PROTECTED] (Otto J. Makela)
Date: Wed, 14 Feb 2001 13:04:34 GMT
I assume the whole logic behind the VESA energy saving system has
changed, or something, because the settings in XF86Config-4 which
worked well with a older kernel no longer (with a hand-compiled 2.4.0)
switch my monitor to energy saving from the gdm login screen, nor does
the Gnome screen saver ever switch over to energy saving mode though
it has been set to do so. This is a RH7.0 system with XFree86 4.0.1,
the old kernel was the 2.2.16-22 that came with the system.
I got a report of a similar problem from another user, and then again,
someone else told me that it works just fine for him.
How should I proceed to figure out what's wrong?
--
/* * * Otto J. Makela <[EMAIL PROTECTED]> * * * * * * * * * * * * * * * */
/* Phone: +358 40 765 5772, FAX: +358 42 7655772, ICBM: 60N 25E */
/* Mail: Mechelininkatu 26 B 27, FIN-00100 Helsinki, FINLAND */
/* * * Computers Rule 01001111 01001011 * * * * * * * * * * * * */
------------------------------
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End of Linux-Misc Digest
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