Linux-Misc Digest #942, Volume #27 Fri, 25 May 01 12:13:09 EDT
Contents:
Performance:Swap Space Location ("Monte Carlo")
Re: Netscape question: Attachments received as inline text? (Yvan Loranger)
Re: Postscript file corrupted - extracting text/patching (Yvan Loranger)
Re: Microsoft exchange server under Linux ? ("Robert Wiegand")
Re: microphone volume level? (ivo welch)
Re: microphone volume level? (Vilmos Soti)
Re: chmod +s (Vilmos Soti)
Re: BIOS Operating System (BIOSOS) (long). (John Brock)
M4 (Bob Zimmerman)
XTerm Question ("Buck Turgidson")
Re: Performance:Swap Space Location (Yvan Loranger)
Re: Routing keystrokes through network connection (Jeremiah DeWitt Weiner)
Re: microphone volume level? (Kaz Kylheku)
Help With Xterm ("Buck Turgidson")
Re: Quake3 + XFree86-4.0.3 + Voodoo3 = Death Slow (Charles Wilkins)
Re: RH7.1 in endless loop: & mouse not detected (Leonard Evens)
sendmail delivery (Claus Atzenbeck)
Re: Microsoft exchange server under Linux ? (Jeffrey Hood)
----------------------------------------------------------------------------
Reply-To: "Monte Carlo" <[EMAIL PROTECTED]>
From: "Monte Carlo" <[EMAIL PROTECTED]>
Subject: Performance:Swap Space Location
Date: Fri, 25 May 2001 09:11:40 -0500
Sorry for the massive crosspost.
I am setting up Debian on my Dell 4100, which has hda as a 20GB IBM and hdc
as a 10GB WD.
I would like to structure my partitions to where I obtain maximun
performance. On my AIX machines, I have seen recomendations that swap space
be in the center of the drive.
My question is where to locate SWAP spaces. Should they be in the physical
center of the disk, or just stratigilly located in between other file
systems.
Which diagram is the most efficient?
Disk layout. In the example, I assume /usr and /var are the most accessed
(Are there any good stats on %usage of the various filesystems?
Example A FS1 FS2 FS3 FS4 FS5 FS6 SWAP(in pysical center)
Example B SPACE FS1 FS2 FS3 SWAP FS4 FS5 FS6 SPACE
Example C FS1 FS2 FS3 SWAP FS4 FS5 FS6 SPACE
FS1 = /
FS2=/home
FS3=/usr
FS4=/var
FS5=/tmp
FS6=/spare
In the first, SWAP is in the center, all file systems are at the beginning
of the drive
In the second, all file systems are close to the center of the disk, with
SWAP being in the exact middle.
In the third, SWAP is directly beteen /usr and /var, two file systems that
will have lots of access.
hda is linux only, hdc is win2k only. hdc and cdr are on the same ide
channel..
Would the system be more efficient to have SWAP on the hdc? As hdc is only
active when win2k is running.
I guess I am asking if Linux does elevator seeking. And does Linux use the
least active drive for SWAP
I hope this all makes since.
Thanks again, in advance,
Walter
------------------------------
From: [EMAIL PROTECTED] (Yvan Loranger)
Subject: Re: Netscape question: Attachments received as inline text?
Date: 25 May 2001 14:27:54 GMT
Reply-To: [EMAIL PROTECTED] (Yvan Loranger)
David ([EMAIL PROTECTED]) writes:
> Yvan Loranger wrote:
>>
>> Atul Narang ([EMAIL PROTECTED]) writes:
>> > I use Netscape Messenger as my mail reader. Any text file
>> > attachments emailed to me appear as inline text below the
>> > message. How can I turn this off? I prefer to have the
>> > attachments remain attachments (rather than inline text).
>>
>> AFAIK, it's controlled via the menu Edit;Preferences
>> [not sure pure text attachments will respond though]
>> Version of Netscape you're using may invalidate my hint; look elsewhere in
>> the menus.
>
> On netscape 4.77 look in:
>
> edit/preferences/mail & newgroups/messages
or menu View;View attachments inline
--
Merci........Yvan Pour le plein air: Club Vertige
http://www.ncf.ca/vertige
------------------------------
From: [EMAIL PROTECTED] (Yvan Loranger)
Subject: Re: Postscript file corrupted - extracting text/patching
Date: 25 May 2001 14:37:15 GMT
Reply-To: [EMAIL PROTECTED] (Yvan Loranger)
"Theo van der Merwe" ([EMAIL PROTECTED]) writes:
> I have obtained a Postscript file (apparently generated with Microsoft Word)
> of which I can only read the first page using gv (an error - moveto - is
> generated on the next page). I have the following questions:
>
> a) How do I extract just the text from the Postscript file? How is the raw
> text in a Postscript file encoded?
>
> b) Is it possible to fix a corrupted Postscript file (e.g. by extracting the
> usable portions to a new file)?
>
> Any help with the above would be greatly appreciated.
i'm sure there are pgms to accomplish the above but allow me to suggest
reading the file with xpdf - might work!
--
Merci........Yvan Pour le plein air: Club Vertige
http://www.ncf.ca/vertige
------------------------------
From: "Robert Wiegand" <[EMAIL PROTECTED]>
Subject: Re: Microsoft exchange server under Linux ?
Date: Fri, 25 May 2001 09:33:46 -0500
In article <[EMAIL PROTECTED]>, "Jeffrey
Hood" <[EMAIL PROTECTED]> wrote:
> Jumping in here (and I am a -devoted- Linux user/administrator...) If
> there ever became a drop in replacement for the Calendaring feature of
> Exchange that was open source, I would have more business replacing
> Exchange than I ever could do... All of the admins that I know would
> toss out Exchange in a minute and replace the email with (insert mail
> transport of choice here...), but their users are literally hooked (and
> for good reason... as I was in management in a previous life, and know
> the power of the group scheduling in Exchange...) on the Calendar, not
> to say that a large number sync to palm-type devices... HP OpenMail
> -looked- good as a drop in for small companies, and literally was
> invisible to the users as a backend, but the cost wasn't that much
> better, even though the stability was infinitely better... but MSoft
> seemed to have crushed the idea of that getting open sourced, since HP
> has stopped development...
It is not quite finished yet, but the Evolution program sounds like what
you are looking for.
--
Regards,
Bob Wiegand [EMAIL PROTECTED]
------------------------------
From: ivo welch <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps
Subject: Re: microphone volume level?
Date: Fri, 25 May 2001 10:52:32 -0400
Reply-To: [EMAIL PROTECTED]
Hi Kaz: I can read from /dev/audio, but how to I get the amplitude (overwhich I
need to compute the average)?
thanks for your post.
regards,
/ivo
Kaz Kylheku wrote:
> On Thu, 24 May 2001 18:49:00 -0400, ivo welch <[EMAIL PROTECTED]> wrote:
> >
> >Is there an easy way for a program to obtain a reading on the loudness
> >level of audio coming into the microphone? (This would be something I
> >would want if I wanted to start an application if someone slams the door
> >in the room.)
>
> You must read samples from the audio device and then perform an moving average
> of the square of the amplitude, over a moving window of samples of some size.
> Use 10.0 * log10(average) to obtain a relative decibel scale, taking care
> when average is zero, of course. ;)
--
Ivo Welch, Professor of Finance/Economics, Yale/SOM + NBER
http://welch.som.yale.edu/
------------------------------
Crossposted-To: comp.os.linux.development.apps
Subject: Re: microphone volume level?
From: Vilmos Soti <[EMAIL PROTECTED]>
Date: Fri, 25 May 2001 15:10:49 GMT
[EMAIL PROTECTED] (Kaz Kylheku) writes:
>> Is there an easy way for a program to obtain a reading on the loudness
>> level of audio coming into the microphone? (This would be something I
>> would want if I wanted to start an application if someone slams the door
>> in the room.)
>
> You must read samples from the audio device and then perform an moving
Wouldn't /dev/mixer, /dev/audioctl, (depends on system) be better?
Vilmos
------------------------------
Subject: Re: chmod +s
From: Vilmos Soti <[EMAIL PROTECTED]>
Date: Fri, 25 May 2001 15:08:50 GMT
Dave Uhring <[EMAIL PROTECTED]> writes:
>> I though that since root owns the script, then setting -rwsrwsr-- would
>> allow a user (of the appropriate group) to call the script which calls the
>> startup script as if he were root.
>
> Your user who is not a member of the group owning that file only has read
> permissions. If you want any user to be able to execute the file with suid
> root permission
>
> # chmod 4755 <file_name>
Wrong. Just take a look at passwd:
-r-s--x--x 1 root root 10704 Apr 14 1999 passwd
I am not logged in as root, neither in root group, but I can still
execute it and have my password changed. The SUID bit is there so
when the program (binary, not script) is executed, then it will run
with the owner's (in this case root) credentials.
Vilmos
------------------------------
From: [EMAIL PROTECTED] (John Brock)
Crossposted-To:
comp.sys.ibm.pc.hardware.misc,comp.os.linux.hardware,comp.os.linux.setup,comp.arch,comp.os.misc,comp.os.msdos.misc
Subject: Re: BIOS Operating System (BIOSOS) (long).
Date: 25 May 2001 11:09:32 -0400
In article <9eee2r$d02$[EMAIL PROTECTED]>,
Hermann Samso <[EMAIL PROTECTED]> wrote:
> Summary:
> With the advent of cheap ROMs and flash memory, it
> would be delightful to have a small Boot Up Operating System.
>
> The Story:
> Having just bought two second hand PCs, I had to realize
> that they didn't have any Operating System installed, and
> oh poor me! forgot to buy the last update/release of my
> favourite OS (Linux/Windows/etc). What to do?
>
> The Solution:
> Not only for test reasons, but to really boot up a System
> from scratch, it would be helpful to have a BIOS "glue"
> or some other kind of ROM installed in everyday use PCs.
> This would help mantain the System and also help in software
> developement.
[...etc...]
I think this would be great, but since it would give the user a
lot more control over his system I think that Microsoft is unlikely
to allow it to happen. In fact I'm not sure the hardware vendors
would have any interest even if it wasn't a problem for Microsoft.
A more practical approach would be to take your BIOSOS and put it
on a floppy disk, which would mean that you could boot it from
pretty much any PC available today, new or old.
A while ago I made a suggestion -- similar to yours -- on the
bug-grub list: I suggested that we need an open source "Disk Manager"
which would handle the things you talk about and more. The Disk
Manager would be small enough to live on a floppy, and among other
things would be able to create and resize partitions and install
itself in a primary partition where it would function as sort of
a super-LILO (which is why I was posting to the GRUB list). I did
mention as part of my suggestion that some of this functionality
would be in the BIOS if things had been done properly from the start.
Anyway, if anyone wants to take a look at it, my suggestion is at
http://www.mail-archive.com/bug-grub%40gnu.org/msg03485.html
--
John Brock
[EMAIL PROTECTED]
------------------------------
From: Bob Zimmerman <[EMAIL PROTECTED]>
Subject: M4
Date: 25 May 2001 15:16:51 GMT
I just installed Red Hat 7.2 and configured my .mc file. I went to
run m4 and got the error:
Cannot open /usr/lib/sendmail-cf/m4/cf.m4 no such file.
I had this on another machine working fine and am setting this
machine up from scratch and can't figure out why I am getting this
error. Any suggestions are appreciated...
------------------------------
From: "Buck Turgidson" <[EMAIL PROTECTED]>
Subject: XTerm Question
Date: Fri, 25 May 2001 15:06:57 GMT
I asked a couple of days ago about using Xterm on Win98 to access a linux machine.
I downloaded X-Win32, and got it loaded and running. I've got X running on linux.
When I get a session going on MS Windows, all I get is a xTerm terminal window,
similar to telnet. I was expecting some sort of graphical window of KDE, as per
Starnet's website.
Did I miss a step here, or is this just one of the disappointments of life?
Thanks for any help.
------------------------------
From: [EMAIL PROTECTED] (Yvan Loranger)
Subject: Re: Performance:Swap Space Location
Date: 25 May 2001 15:25:03 GMT
Reply-To: [EMAIL PROTECTED] (Yvan Loranger)
"Monte Carlo" ([EMAIL PROTECTED]) writes:
> I would like to structure my partitions to where I obtain maximun
> performance. On my AIX machines, I have seen recomendations that swap space
> be in the center of the drive.
>
> My question is where to locate SWAP spaces. Should they be in the physical
> center of the disk, or just stratigilly located in between other file
> systems.
If swap is rarely used you might want it at the 'slow' extreme of the
disk. Outer tracks transfer data faster than inner - i can't remember from
which end they're numbered [& ext2 fills a partition].
> Which diagram is the most efficient?
>
> Disk layout. In the example, I assume /usr and /var are the most accessed
> (Are there any good stats on %usage of the various filesystems?
>
> Example A FS1 FS2 FS3 FS4 FS5 FS6 SWAP(in pysical center)
> Example B SPACE FS1 FS2 FS3 SWAP FS4 FS5 FS6 SPACE
> Example C FS1 FS2 FS3 SWAP FS4 FS5 FS6 SPACE
>
> FS1 = /
> FS2=/home
> FS3=/usr
> FS4=/var
> FS5=/tmp
> FS6=/spare
>
> In the first, SWAP is in the center, all file systems are at the beginning
> of the drive
> In the second, all file systems are close to the center of the disk, with
> SWAP being in the exact middle.
> In the third, SWAP is directly beteen /usr and /var, two file systems that
> will have lots of access.
The whole idea is to minimize head travel, & none of your partitions
need/should be primary & you probably want to avoid the 1024 cylinder
problem, so the third. But the second gives flexibility in providing a
primary partition for future use [just to show there are other factors].
> hda is linux only, hdc is win2k only. hdc and cdr are on the same ide
> channel..
>
> Would the system be more efficient to have SWAP on the hdc? As hdc is only
> active when win2k is running.
BINGO!
> I guess I am asking if Linux does elevator seeking. And does Linux use the
> least active drive for SWAP
I'm puzzled you ask that, since you know about elevator seeking [which
I've forgotten about so I'm not commenting].
> I hope this all makes since.
no, but it makes sense :)
--
Merci........Yvan Pour le plein air: Club Vertige
http://www.ncf.ca/vertige
------------------------------
From: Jeremiah DeWitt Weiner <[EMAIL PROTECTED]>
Crossposted-To: alt.linux,comp.os.linux
Subject: Re: Routing keystrokes through network connection
Date: 25 May 2001 15:39:12 GMT
In comp.os.linux.misc Michael Pye <[EMAIL PROTECTED]> wrote:
> Thanks, but I think the point of the question was missed a little... I would
> like to manually make the telnet (or other) connection as well...
You want to manually make the telnet connection? OK, so manually
type "telnet hostname" at a command prompt... Seriously, what exactly is
it that you want? You want to create the TCP/IP packets yourself? You
want to send binary/hexadecimal/whatever output through a network connection?
There's nothing magic about telnet; it just sends data back and forth.[0]
> I know I can have my keystrokes echoed exactly with telnet, but I want to
> control the output from the port and see the returned values, telnet clients
> themselves make much transparent (don't they?)
I don't understand "I want to control the output from the port", and
I don't think anyone else here does either. You _do_ control the output from
the port: telnet only sends what you type in.[0] "See the returned values"?
_What_ returned values? Telnet will let you see whatever the remote system
returns.[0]
Maybe what you want is netcat. From the README: "Netcat is a simple
Unix utility which reads and writes data across network connections, using
TCP or UDP protocol. It is designed to be a reliable "back-end" tool that can
be used directly or easily driven by other programs and scripts. At the same
time, it is a feature-rich network debugging and exploration tool, since it
can create almost any kind of connection you would need..." Check out
http://www.l0pht.com/~weld/netcat/
JDW
[0] OK, so telnet does do terminal-type negotiation, and it isn't 8-bit
clean by default, and there are escape sequences, but this is still basically
true.
------------------------------
From: [EMAIL PROTECTED] (Kaz Kylheku)
Crossposted-To: comp.os.linux.development.apps
Subject: Re: microphone volume level?
Reply-To: [EMAIL PROTECTED]
Date: Fri, 25 May 2001 15:54:41 GMT
On Fri, 25 May 2001 10:52:32 -0400, ivo welch <[EMAIL PROTECTED]> wrote:
>
>Hi Kaz: I can read from /dev/audio, but how to I get the amplitude (overwhich I
>need to compute the average)?
I told you, you must read samples. Each sample represents an amplitude,
a digitized voltage level from the A/D converter. So what you are doing
is effectively very simple signal processing to determine the amplitude
level.
------------------------------
From: "Buck Turgidson" <[EMAIL PROTECTED]>
Subject: Help With Xterm
Date: Fri, 25 May 2001 15:41:01 GMT
I asked a couple of days ago about using Xterm on Win98 to access a linux machine.
I downloaded X-Win32, and got it loaded and running. I've got X running on linux.
When I get a session going on MS Windows, all I get is a xTerm terminal window,
similar to telnet. I was expecting some sort of graphical window of Gnome, as per
Starnet's website.
Did I miss a step here, or is this just one of the disappointments of life?
Thanks for any help.
------------------------------
From: [EMAIL PROTECTED] (Charles Wilkins)
Crossposted-To: alt.os.linux.slackware,3dfx.glide.linux,alt.games.quake3
Subject: Re: Quake3 + XFree86-4.0.3 + Voodoo3 = Death Slow
Date: Fri, 25 May 2001 15:59:50 GMT
Reply-To: [EMAIL PROTECTED]
I have seen this exact symptom when software gl is the driver in linux
and in windoze.
I am leaning towards there being a problem with the 3dfx driver under
X. smp compatibility or not, the 3dfx driver is not working properly.
Charles Wilkins
On Wed, 2 May 2001 20:02:29 +0100, "Crap Name [AGQx]"
<[EMAIL PROTECTED]> wrote:
>I used to run a p2-300 + v3 without much issues. It was in vertex mode and
>at 800*600 but I still managed to get 40-50 fps. The person with his Dual p2
>setup should have NO problems running Q3.
>
>I still have my V3 in my new Athlon tbrid 750 on a 21" screen and still run
>it at 800*600. Yes the display would be better at a higher resolution but I
>prefer to keep stable at 60fps at all times instead of having the variations
>I get when I run at the higher resolutions.
------------------------------
From: Leonard Evens <[EMAIL PROTECTED]>
Subject: Re: RH7.1 in endless loop: & mouse not detected
Date: Fri, 25 May 2001 10:21:38 -0500
Micro Hue wrote:
>
> G'day all,
>
> I have been trying to upgrade from Redhat 6.2 to 7.1 but the
> the installed system chokes on my Logitech Wheelmouse when I boot.
>
> I am relatively new to Linux (occasional use on my dual boot PII 333
> 64MB box) and would like some pointers please on my tale of woe...
>
> My mouse has been working fine with RH 6.2 and still does since Ive
> had to revert to 6.2 after many abortive attempts to get RH7.1 going.
>
> On install (or upgrade) of RH7.1, the mouse is recognized as Generic 3
> button mouse (PS/2) - same as RH 6.2 does. Mouse works fine during
> install.
> After install exits, I reboot. Error message, something like:
>
> "gpm: oops() invoked from gpm.c[978]
> Device or Resource busy"
>
> Then the computer goes into an endless loop between a text login
> prompt which disappears when (presumably) X tries to start and
> reappears briefly a few seconds later only to disappear before I have
> a chance to log in. Repeat ad nauseum. No keypresses seem to stop it.
> I've tried numerous keys: Alt-Ctl-F2, Alt-Ctl-Back, A-C-Tab etc.
> Nothing works but A-C-Del which only reboots into the same problem. (I
> use Loadlin to boot linux)
> However the shut down produces a message:
> "Shutting down console mouse services [FAILED]"
>
> How do I stop the startup looping?
> How do I fix the mouse?
> Why does RH7.1 choke on a simple mouse that RH6.2 happily swallows?
>
> I've tried reinstalling using every combination of Generic PS/2 mouse,
> even the Logitech PS/2 ones. All give same result.
>
> I even tried the floppy boot disk using 'Linux single'.
> At least I got a prompt.
> Ran 'mouseconfig'
> "There was an error reading file /etc/sysconfig/mouse
> Would you like to create a new configuration?
> (Would I ever!) OK
> Mouseconfig can update Xfree86 configuration file?
> YES
>
> Reboot. Same problem.
>
> It must be something simple I've overlooked...
>
> Tony
There seem to be a group of mouse problems with the 2.4.2 kernel
concerning irq 12, which is what the PS/2 mouse uses. In
my case, there was an interrupt conflict between the pcmcia
controller on a Winbook laptop and the PS/2 mouse, with both
wanting to use irq 12. The problem may be that until the mouse
is actually used the kernel can't tell the interrupt is not
available and may assign it to another device. In my case,
once the interrupt had been assigned to the pcmcia controller,
stopping pcmcia would not release it, so the conflict still
existed.
Someone else has reported a conflict with his sound hardware
which was set up to use irq 12.
I think an interrupt conflict can produce different effects
depending on the situation. In my case both mouse and keyboard
froze.
I suggest looking for an interrupt conflict. You can try
more /proc/interrupts, but this may not show it. Also,
look in /var/log/messages to see if any interrupts were set
on booting. Finally try lspci -vv to see if any pci devices
have taken over irq 12.
By the way, in all these cases the system worked fine with
2.2 kernels.
In my case, I could fix the problem by passing a parameter to
the kernel. When booting this takes the form at the lilo boot
prompt
linux pci=irqmask=0xafff
or you can add to the linux image section of lilo
append="pci=irqmask=0xafff"
and then rerun /sbin/lilo.
--
Leonard Evens [EMAIL PROTECTED] 847-491-5537
Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208
------------------------------
From: Claus Atzenbeck <[EMAIL PROTECTED]>
Subject: sendmail delivery
Date: Fri, 25 May 2001 17:56:01 +0200
fetchmail delivers my mail to my local mailbox. From one mailbox I get
mails to different e-mail addresses (caused by other forwarding e-mail
accounts), which are all supposed to be locally
For example;:
I get:
[EMAIL PROTECTED]
[EMAIL PROTECTED]
They need to be deliverd to:
sympa@localhost
thorn-dev@localhost
I have postfix installed. I want to do this delivery using postfix'
sendmail command:
The entry in my .fetchmailrc looks:
user [EMAIL PROTECTED] there with password mysecret is * here
options fetchall stripcr
mda '/usr/sbin/sendmail -oem -f %F %T'
The only thing is that %T is replaced by the whole e-mail address, not only
the name before the @ sign.
How can I tell fetchmail to replace %T by the used user name without the
domain??
I'm lost at this point...
Thanks for any hint!
Claus
------------------------------
From: Jeffrey Hood <[EMAIL PROTECTED]>
Subject: Re: Microsoft exchange server under Linux ?
Date: Fri, 25 May 2001 15:38:31 GMT
> In article <[EMAIL PROTECTED]>, "Jeffrey
> Hood" <[EMAIL PROTECTED]> wrote:
>
> > Jumping in here (and I am a -devoted- Linux user/administrator...) If
> > there ever became a drop in replacement for the Calendaring feature of
> > Exchange that was open source, I would have more business replacing
> > Exchange than I ever could do... All of the admins that I know would
> > toss out Exchange in a minute and replace the email with (insert mail
> > transport of choice here...), but their users are literally hooked (and
> > for good reason... as I was in management in a previous life, and know
> > the power of the group scheduling in Exchange...) on the Calendar, not
> > to say that a large number sync to palm-type devices... HP OpenMail
> > -looked- good as a drop in for small companies, and literally was
> > invisible to the users as a backend, but the cost wasn't that much
> > better, even though the stability was infinitely better... but MSoft
> > seemed to have crushed the idea of that getting open sourced, since HP
> > has stopped development...
>
> It is not quite finished yet, but the Evolution program sounds like what
> you are looking for.
>
>
IF it actually ends up with a corporate-type calendar... and -
especially- if it would use something like LDAP... that would be really
nice...
JH
--
Jeffrey Hood
HM Consulting, Inc.
jhood [you-know-why] at hmcon.com
------------------------------
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