Re: [Emc-users] 2.9 ISO?

2022-10-10 Thread Thaddeus Waldner


> On Oct 10, 2022, at 4:12 AM, andy pugh  wrote:
> 
> On Mon, 10 Oct 2022 at 10:06, John Dammeyer  wrote:
>> 
>> Thank you Andy.
>> That clearly answers my question.

Ditto
Thanks
> 
> You can probably install the Buster .deb package on Bullseye, though.
> 
> -- 
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-10 Thread andy pugh
On Mon, 10 Oct 2022 at 10:06, John Dammeyer  wrote:
>
> Thank you Andy.
> That clearly answers my question.

You can probably install the Buster .deb package on Bullseye, though.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-10 Thread John Dammeyer
Thank you Andy.
That clearly answers my question.
John

> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: October-10-22 1:16 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] 2.9 ISO?
> 
> On Mon, 10 Oct 2022 at 07:48, Thaddeus Waldner  wrote:
> >
> >
> > > On Oct 9, 2022, at 5:27 PM, andy pugh  wrote:
> > >
> > > Yes, because you are not running Bookworm.
> > >
> > > LinuxCNC only makes 2.9 packages for the things that you can find in here:
> > >
> > > buildbot.linuxcnc.org/dists/
> > I�m confused; bookworm is not in that list.
> > Do you mean buster?
> 
> LinuxCNC makes packages for the distsributions on the buildbot.
> Debian makes packages for Bookworm.
> 
> If you are not running Bookworm then you need to add the buildbot
> repository to your repository list.
> 
> Unless you are running Bullseye. AFAIK nobody is building packages for
> Bullseye.
> 
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> � George Fitch, Atlanta Constitution Newspaper, 1912
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-10 Thread andy pugh
On Mon, 10 Oct 2022 at 07:48, Thaddeus Waldner  wrote:
>
>
> > On Oct 9, 2022, at 5:27 PM, andy pugh  wrote:
> >
> > Yes, because you are not running Bookworm.
> >
> > LinuxCNC only makes 2.9 packages for the things that you can find in here:
> >
> > buildbot.linuxcnc.org/dists/
> I’m confused; bookworm is not in that list.
> Do you mean buster?

LinuxCNC makes packages for the distsributions on the buildbot.
Debian makes packages for Bookworm.

If you are not running Bookworm then you need to add the buildbot
repository to your repository list.

Unless you are running Bullseye. AFAIK nobody is building packages for
Bullseye.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-10 Thread Thaddeus Waldner

> On Oct 9, 2022, at 5:27 PM, andy pugh  wrote:
> 
> Yes, because you are not running Bookworm.
> 
> LinuxCNC only makes 2.9 packages for the things that you can find in here:
> 
> buildbot.linuxcnc.org/dists/
I’m confused; bookworm is not in that list.
Do you mean buster?

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread John Dammeyer
Chris,
Yes.  I agree it's _not_ Raspberry Pi software nor is it Raspian as has been 
clearly stated on the Pi support group.

But let's not get caught up in arguing semantics.  

Linux is an OS.  And on top of that OS runs a user interface.  It can be as 
simple as a command line or as sophisticated as a graphics interface with touch 
screen.  In this case it's a Debian GNU/Linux 11 (bullseye) running as this 
kernel and hardware:  Linux 5.10.0-15-amd64 x86_64

Now in this case the graphics, keyboard, USB and Ethernet (WiFi and Hardwired) 
all happen to be made by a little company called "Apple" and originally ran 
Apple Software which gave it a "MacBook" personality.  But it's still just 
hardware with the amd64 x86_64 processor core.

There are for LinuxCNC several kernel versions, some with hard real time and 
some with softer real time.  I've seen on the BeagleBone for example, that it's 
possible from the command line to replace parts of the OS (including the 
kernel) with newer or older versions while leaving the "user interface and 
hardware etc" totally alone.

So my question was really quite simple.  In the same way we do apt-get install 
etc for modules is there a way to then get something like LinuxCNC 2.8 
installed without mucking up the rest of the hardware interface?

John

> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: October-09-22 4:34 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] 2.9 ISO?
> 
> It is NOT "Raspberry Pi software" if it is on an Intel CPU.   Yes, Linux
> runs on many kinds of hardware.   The same software can not run o both
> Intel and ARM.   It is one or the other.
> 
> On Sun, Oct 9, 2022 at 4:02 PM John Dammeyer  wrote:
> 
> >
> > > -Original Message-
> > > From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> > >
> > > On Sun, Oct 9, 2022 at 1:00 PM John Dammeyer 
> > wrote:
> > >
> > > > I thought I would try this with no expectations that it would actually
> > > > work.  I have an apple MacBook Pro from around 2011 installed with the
> > > > Raspberry Pi version of Linux.
> > > >
> > >
> > > That has no chance of working, the old Mac has an Intel i5 CPU and the
> > > Raspberry Pi is an ARM-based computer.
> > >
> > > Chris Albertson
> > > Redondo Beach, California
> >
> > Hi Chris,
> > Not sure where you are coming from on that.  With the exception of access
> > to RPi hardware the look and feel of the user interface is a Pi.  In fact
> > even the Sense Hat Emulator software is available for users to develop
> > sense hat code in python on the laptop and then later download it to the
> > embedded pi with sense hat.
> >
> > I've already downloaded the Lazarus Free Pascal for it.
> > To me it looks like a Pi.  Just can't access Pi hardware of course.
> >
> > As the attached screen shot shows, it's unlikely you'd know whether this
> > was the Pi or the MacBook.  (answer: it's the Macbook).
> >
> > And as my previous posting shows, it's running a fairly current version of
> > Linux.
> >
> > Since on my RPi4 LinuxCNC just shows up as a desktop ICON and a list of
> > programs on the drop down menu to install etc. I was wondering how to get
> > LinuxCNC onto an 'existing Linux system'.
> >
> > As Andy says it won't be the 2.9 package since this isn't bookworm.   But
> > is it possible to install LinuxCNC onto an existing linux system?
> >
> > John
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> 
> 
> --
> 
> Chris Albertson
> Redondo Beach, California
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread Chris Albertson
It is NOT "Raspberry Pi software" if it is on an Intel CPU.   Yes, Linux
runs on many kinds of hardware.   The same software can not run o both
Intel and ARM.   It is one or the other.

On Sun, Oct 9, 2022 at 4:02 PM John Dammeyer  wrote:

>
> > -Original Message-
> > From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> >
> > On Sun, Oct 9, 2022 at 1:00 PM John Dammeyer 
> wrote:
> >
> > > I thought I would try this with no expectations that it would actually
> > > work.  I have an apple MacBook Pro from around 2011 installed with the
> > > Raspberry Pi version of Linux.
> > >
> >
> > That has no chance of working, the old Mac has an Intel i5 CPU and the
> > Raspberry Pi is an ARM-based computer.
> >
> > Chris Albertson
> > Redondo Beach, California
>
> Hi Chris,
> Not sure where you are coming from on that.  With the exception of access
> to RPi hardware the look and feel of the user interface is a Pi.  In fact
> even the Sense Hat Emulator software is available for users to develop
> sense hat code in python on the laptop and then later download it to the
> embedded pi with sense hat.
>
> I've already downloaded the Lazarus Free Pascal for it.
> To me it looks like a Pi.  Just can't access Pi hardware of course.
>
> As the attached screen shot shows, it's unlikely you'd know whether this
> was the Pi or the MacBook.  (answer: it's the Macbook).
>
> And as my previous posting shows, it's running a fairly current version of
> Linux.
>
> Since on my RPi4 LinuxCNC just shows up as a desktop ICON and a list of
> programs on the drop down menu to install etc. I was wondering how to get
> LinuxCNC onto an 'existing Linux system'.
>
> As Andy says it won't be the 2.9 package since this isn't bookworm.   But
> is it possible to install LinuxCNC onto an existing linux system?
>
> John
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread gene heskett

On 10/9/22 17:54, Martin Dobbins wrote:

I think the rpi version of linux cnc is not the same as the pc version?

Martin


From: John Dammeyer

I thought I would try this with no expectations that it would actually work.  I 
have an apple MacBook Pro from around 2011 installed with the Raspberry Pi 
version of Linux.

I tried Andy's   " sudo apt-get install linuxcnc"  but as you can see below it 
fails.  I am up to date with update and upgrade.

Is what I'm trying to do even possible?  I do have LinuxCNC running on a Pi4.
John
Your problem is probably the mac's kernel, running the raspian buster, 
the kernel has no realtime support.


The git pull of the src is exactly the same. I can use the buildbots rpi 
version here on my rpi4b, or I can build
it from a git clone of linucnc's src tree right on that pi.. No 
detectable difference.


How does that old mac boot?  If it is a "u-boot"er, then there is an odd 
chance my kernel can run it. Also, I /think/ the

arm kernel of: pi@rpi4:~ $ uname -a

Linux rpi4.coyote.den 4.19.71-rt24-v7l+ #1 SMP PREEMPT RT Thu Feb 6 
07:09:18 EST 2020 armv7l GNU/Linux


Might run on your mac. I /think/ its also available from linuxcnc.org. 
If it is mine, install is just unpacking the tarball, seeing two directories
in it, and copying each to the same directory on your mac, u-boot will 
need /boot/config.txt edited to select the alternate /boot

to get the above output after a reboot.

Make recovery backups first of course.

My nearly 80 yo 11x54 Sheldon is being run by an rpi4b, works fine. Has 
been for several years, starting originally with

an rpi3b, slower by quite a bit.

Take care & stay well, John.

john@raspberry:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:Debian GNU/Linux 11 (bullseye)
Release:11
Codename:   bullseye
john@raspberry:~ $ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/;
SUPPORT_URL="https://www.debian.org/support;
BUG_REPORT_URL="https://bugs.debian.org/;
john@raspberry:~ $ uname -srm
Linux 5.10.0-15-amd64 x86_64
john@raspberry:~ $
john@raspberry:~ $ sudo apt-get install linuxcnc
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package linuxcnc
oh oh, bullseye, Last time I checked, bullseye's python was too new, 
busters works fine.


Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread John Dammeyer

> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> 
> On Sun, Oct 9, 2022 at 1:00 PM John Dammeyer  wrote:
> 
> > I thought I would try this with no expectations that it would actually
> > work.  I have an apple MacBook Pro from around 2011 installed with the
> > Raspberry Pi version of Linux.
> >
> 
> That has no chance of working, the old Mac has an Intel i5 CPU and the
> Raspberry Pi is an ARM-based computer.
> 
> Chris Albertson
> Redondo Beach, California

Hi Chris,
Not sure where you are coming from on that.  With the exception of access to 
RPi hardware the look and feel of the user interface is a Pi.  In fact even the 
Sense Hat Emulator software is available for users to develop sense hat code in 
python on the laptop and then later download it to the embedded pi with sense 
hat.

I've already downloaded the Lazarus Free Pascal for it.
To me it looks like a Pi.  Just can't access Pi hardware of course.

As the attached screen shot shows, it's unlikely you'd know whether this was 
the Pi or the MacBook.  (answer: it's the Macbook).

And as my previous posting shows, it's running a fairly current version of 
Linux.

Since on my RPi4 LinuxCNC just shows up as a desktop ICON and a list of 
programs on the drop down menu to install etc. I was wondering how to get 
LinuxCNC onto an 'existing Linux system'.

As Andy says it won't be the 2.9 package since this isn't bookworm.   But is it 
possible to install LinuxCNC onto an existing linux system?

John

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread andy pugh
On Sun, 9 Oct 2022 at 21:00, John Dammeyer  wrote:
>
> I thought I would try this with no expectations that it would actually work.  
> I have an apple MacBook Pro from around 2011 installed with the Raspberry Pi 
> version of Linux.

I don't really understand how that can even work, as Raspbian is for
Armhf or Arm64,

> I tried Andy's   " sudo apt-get install linuxcnc"  but as you can see below 
> it fails.

Yes, because you are not running Bookworm.

LinuxCNC only makes 2.9 packages for the things that you can find in here:

buildbot.linuxcnc.org/dists/


--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread Chris Albertson
On Sun, Oct 9, 2022 at 1:00 PM John Dammeyer  wrote:

> I thought I would try this with no expectations that it would actually
> work.  I have an apple MacBook Pro from around 2011 installed with the
> Raspberry Pi version of Linux.
>

That has no chance of working, the old Mac has an Intel i5 CPU and the
Raspberry Pi is an ARM-based computer.

-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread Martin Dobbins
I think the rpi version of linux cnc is not the same as the pc version?

Martin


From: John Dammeyer

I thought I would try this with no expectations that it would actually work.  I 
have an apple MacBook Pro from around 2011 installed with the Raspberry Pi 
version of Linux.

I tried Andy's   " sudo apt-get install linuxcnc"  but as you can see below it 
fails.  I am up to date with update and upgrade.

Is what I'm trying to do even possible?  I do have LinuxCNC running on a Pi4.
John


john@raspberry:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:Debian GNU/Linux 11 (bullseye)
Release:11
Codename:   bullseye
john@raspberry:~ $ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/;
SUPPORT_URL="https://www.debian.org/support;
BUG_REPORT_URL="https://bugs.debian.org/;
john@raspberry:~ $ uname -srm
Linux 5.10.0-15-amd64 x86_64
john@raspberry:~ $
john@raspberry:~ $ sudo apt-get install linuxcnc
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package linuxcnc


> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: October-09-22 9:32 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] 2.9 ISO?
>
> On Sun, 9 Oct 2022 at 06:18, Thaddeus Waldner  wrote:
> ,
> > What is the quickest way to get an OS + realtime kernel + LinuxCNC 2.9 up
> > and running on an Intel system from scratch?
>
> I think that if you install the Bookworm installer here:
> https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-
> firmware/bookworm_di_alpha1+nonfree/amd64/iso-dvd/
>
> Then you can just sudo apt-get install linuxcnc.
>
> Alternatively, start with the normal LinuxCNC installer (Buster) and
> then get 2.9 from the LinuxCNC buildbot:
> http://buildbot.linuxcnc.org
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> � George Fitch, Atlanta Constitution Newspaper, 1912
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread John Dammeyer
I thought I would try this with no expectations that it would actually work.  I 
have an apple MacBook Pro from around 2011 installed with the Raspberry Pi 
version of Linux.

I tried Andy's   " sudo apt-get install linuxcnc"  but as you can see below it 
fails.  I am up to date with update and upgrade.

Is what I'm trying to do even possible?  I do have LinuxCNC running on a Pi4.
John


john@raspberry:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:Debian GNU/Linux 11 (bullseye)
Release:11
Codename:   bullseye
john@raspberry:~ $ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/;
SUPPORT_URL="https://www.debian.org/support;
BUG_REPORT_URL="https://bugs.debian.org/;
john@raspberry:~ $ uname -srm
Linux 5.10.0-15-amd64 x86_64
john@raspberry:~ $ 
john@raspberry:~ $ sudo apt-get install linuxcnc
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package linuxcnc


> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: October-09-22 9:32 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] 2.9 ISO?
> 
> On Sun, 9 Oct 2022 at 06:18, Thaddeus Waldner  wrote:
> ,
> > What is the quickest way to get an OS + realtime kernel + LinuxCNC 2.9 up
> > and running on an Intel system from scratch?
> 
> I think that if you install the Bookworm installer here:
> https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-
> firmware/bookworm_di_alpha1+nonfree/amd64/iso-dvd/
> 
> Then you can just sudo apt-get install linuxcnc.
> 
> Alternatively, start with the normal LinuxCNC installer (Buster) and
> then get 2.9 from the LinuxCNC buildbot:
> http://buildbot.linuxcnc.org
> 
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> � George Fitch, Atlanta Constitution Newspaper, 1912
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


Re: [Emc-users] 2.9 ISO?

2022-10-09 Thread andy pugh
On Sun, 9 Oct 2022 at 06:18, Thaddeus Waldner  wrote:
,
> What is the quickest way to get an OS + realtime kernel + LinuxCNC 2.9 up
> and running on an Intel system from scratch?

I think that if you install the Bookworm installer here:
https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/bookworm_di_alpha1+nonfree/amd64/iso-dvd/

Then you can just sudo apt-get install linuxcnc.

Alternatively, start with the normal LinuxCNC installer (Buster) and
then get 2.9 from the LinuxCNC buildbot:
http://buildbot.linuxcnc.org

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


[Emc-users] 2.9 ISO?

2022-10-08 Thread Thaddeus Waldner
Hi,
What is the quickest way to get an OS + realtime kernel + LinuxCNC 2.9 up
and running on an Intel system from scratch?

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users