Re: should we really avoid the 686 kernel image?

2010-11-08 Thread Ronny Aasen
On 05. nov. 2010 20:44, Vagrant Cascadian wrote:
 On Sat, Oct 30, 2010 at 04:12:41PM +0200, Petter Reinholdtsen wrote:
 Well, lets begin by exploring why it the 686 kernel is on the avoid
 list, then. :)

 It is on the avoid list because each kernel included in the DVD uses
 around 25-30 MB on the DVD.  That space can be used to include a lot
 of the packages we want to have included on the DVD.  We have to have
 the 486 kernel to get LTSP working, 
 
 this isn't exactly true... we have to have a -486 kernel to get LTSP working
 with the *defaults*. debian-edu could easily configure LTSP to use a -686
 kernel; it would be merely one more divergence from the LTSP defaults.
 
 probably the easiest would be to provide a custom ltsp-build-client plugin 
 that
 prefers the -686 kernel.
 
 i've pondered making this the default, although some (relatively recent)
 thin-clients don't actually support 686 instructions. i'm not sure how widely
 used 486/586 desktop machines are anymore, but it does come up occasionally.
 both cases might be rare enough that -686 would make a better default.


most thin clients (not old pc's) that i use does not work with 686 kernel.

if we change to 686 only. Something that probably would give a boon for
diskless machines. there should be a explaination in the documentation
how to install 486 on your ltsp, and make some machines use that (or all)

onny


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Re: should we really avoid the 686 kernel image?

2010-11-06 Thread Petter Reinholdtsen
[Vagrant Cascadian]
 this isn't exactly true... we have to have a -486 kernel to get LTSP
 working with the *defaults*. debian-edu could easily configure LTSP
 to use a -686 kernel; it would be merely one more divergence from
 the LTSP defaults.

Right.  Good point.  I gave this a try, adding a LTSP override in
d-e-config and changed the avoid entry debian-edu/tasks/common from
686 to 486.

I look forward to see if it work.  Should show up on the DVD in a few
minutes.  If it does not, hopefully we can find the cause and fix it.
If not, it is easy to undo.

I also changed blender and wxmaxima from depends and recommends to
esuggests in the tasks, to save some space on the DVD.  This made
enough room for the Gnome dependencies, but we are still lacking the
LXDE and the language specific packages, and probably some others as
well.

I also suggest to change kicad to suggest to not install it by
default, to avoid pulling in extra-xdg-menus and avoid the Hamradio
and Electronics toplevel KDE menus and get the KDE menus to try to fit
the KDE menu list in the default size of the K menu window.  The
change is commited in svn but not yet uploaded.

Happy hacking,
-- 
Petter Reinholdtsen


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Re: should we really avoid the 686 kernel image?

2010-11-05 Thread Vagrant Cascadian
On Sat, Oct 30, 2010 at 04:12:41PM +0200, Petter Reinholdtsen wrote:
 Well, lets begin by exploring why it the 686 kernel is on the avoid
 list, then. :)
 
 It is on the avoid list because each kernel included in the DVD uses
 around 25-30 MB on the DVD.  That space can be used to include a lot
 of the packages we want to have included on the DVD.  We have to have
 the 486 kernel to get LTSP working, 

this isn't exactly true... we have to have a -486 kernel to get LTSP working
with the *defaults*. debian-edu could easily configure LTSP to use a -686
kernel; it would be merely one more divergence from the LTSP defaults.

probably the easiest would be to provide a custom ltsp-build-client plugin that
prefers the -686 kernel.

i've pondered making this the default, although some (relatively recent)
thin-clients don't actually support 686 instructions. i'm not sure how widely
used 486/586 desktop machines are anymore, but it does come up occasionally.
both cases might be rare enough that -686 would make a better default.

live well,
  vagrant


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Re: should we really avoid the 686 kernel image?

2010-10-31 Thread Andreas B. Mundt
Hi,

On Sat, Oct 30, 2010 at 09:22:08PM +0200, Petter Reinholdtsen wrote:
 [Andreas B. Mundt]
  Let's drop blender. It's about the size of a kernel and will hardly
  be used in any school.
 
 Blender was added (actually changed form suggests to recommends) in
 version 0.848 with this changelog entry:
 
   * Raise the priority of blender in the graphics task from suggests
 to recommends, as it is mentioned on
 URL:http://www.slx.no/en/take-a-tour.
 
 It was found to be part of the set of applications useful to promote
 Debian Edu/Skolelinux, and this caused me to make sure it is installed
 as part of the default installation for Squeeze.
 
 I would rather drop some of the duplicate functionally listed on
 URL: http://wiki.debian.org/DebianEdu/Status/Squeeze  before we
 remove packages found to be soo good that they can be used to promote
 Skolelinux.

I think not providing blender on the DVD does not mean we cannot
promote blender (as all other free software) being easily available
within Skolelinux.  However, it makes no sense to install prestige
stuff almost nobody will use at the expense of non-famous stuff that
improves the user experience for almost everyone.
 
 The popcon.skolelinux.org numbers for blender are 1.9% machines have
 it installed and 0.2% used it last week.  Not too surprising, as it
 has not been part of any stable release yet.

I still do not think blender is the application you to stumble upon
accidentally and think: 'Wow, great I'll use that nice app from now
on'. In my opinion, if anybody at all uses blender at school, he has
carefully prepared to do so and will be able to install it after
installation anyway if needed. 
 
 I'm not against dropping blender, but I believe we should try to look
 at the complete picture before we do so.

Sure, but probably it's hard to find a package with the importance of
blender that uses a comparable amount of storage volume. 

BTW, we discussed the issue before:
URL:http://lists.debian.org/debian-edu/2010/07/msg00278.html 


Best regards,

 Andi


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Petter Reinholdtsen
[Holger Levsen]
 Hi,

Hi.  Glad to see you are looking at the package lists. :)

 currently we avoid the 686 kernel image so that the package is not
 on the CD/DVD.

Can you tell us why it is on the avoid list?

 So to make things easier for a tiny percentage of our users, we make
 things harder for the vast majority.

Who does it make it harder for, and who does it make it easier for?

Happy hacking,
-- 
Petter Reinholdtsen


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Holger Levsen
Hi,

On Samstag, 30. Oktober 2010, Petter Reinholdtsen wrote:
  currently we avoid the 686 kernel image so that the package is not
  on the CD/DVD.
 Can you tell us why it is on the avoid list?

No.

  So to make things easier for a tiny percentage of our users, we make
  things harder for the vast majority.
 Who does it make it harder for, and who does it make it easier for?

Installing the 486 kernel makes it harder for the majority, as they will need 
to install the 686 kernel manually. Installing the 486 kernel makes it easier 
for those few people still using hardware from the last millenium.


cheers,
Holger


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Petter Reinholdtsen
[Holger Levsen]
 Can you tell us why it is on the avoid list?
 
 No.

Well, lets begin by exploring why it the 686 kernel is on the avoid
list, then. :)

It is on the avoid list because each kernel included in the DVD uses
around 25-30 MB on the DVD.  That space can be used to include a lot
of the packages we want to have included on the DVD.  We have to have
the 486 kernel to get LTSP working, and we have to have the amd64
kernel to get 64-bit installation working.  As having an extra kernel
that was not absolutely needed pushed out several of the packages we
want to install automatically during installation which made the DVD
kind of useless by not being self contained, I decided the packages we
wanted to install had higher priorty than a redundant kernel.

The question is thus really a question of priority, and if we give
higher priority to the packages being pushed out of the DVD if we
include three instead of two kernels.

 Installing the 486 kernel makes it harder for the majority, as they
 will need to install the 686 kernel manually. Installing the 486
 kernel makes it easier for those few people still using hardware
 from the last millenium.

Sure.  But that is not really the cause nor the consequence of
dropping vs. keeping the 686 kernel.

Btw, dropping this kernel should only affect the DVD (and not the
netinst CD), as the netinst installation will fetch the 686 kernel
from the net for machines where it is the best fit.  If we want to
throw out more of the packages on the netinst CD, we can even add the
686 kernel to the netinst CD, as it do not really affect the
installation much.  The same set of packages will be installed anyway,
and instead of downloading the kernel some other packages of
approximatly the same size will have to be downloaded instead.

Happy hacking,
-- 
Petter Reinholdtsen


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Andreas B. Mundt
On Sat, Oct 30, 2010 at 03:35:11PM +0200, Holger Levsen wrote:
 Hi,
 
 currently we avoid the 686 kernel image so that the package is not on the 
 CD/DVD. 
 
 I've just talked with the kernel team about this, and they think its the 
 wrong 
 thing to do:
 
 1. the 486 kernel only supports one core 
 2. the 486 kernel only supports 1 GiB RAM 
 3. the 686 kernel supports all (i386) CPUs build in the last 10 years, except 
 the original C3 processor.
 
 Description: Linux 2.6.32 for modern PCs
  The Linux kernel 2.6.32 and modules for use on PCs with Intel Pentium
  Pro/II/III/4/4M/D/M, Xeon, Celeron, Core or Atom; AMD Geode LX/NX, Athlon
  (K7), Duron, Opteron, Sempron, Turion or Phenom; Transmeta Efficeon; VIA
  C3 Nehemiah or C7 processors.
 
 So to make things easier for a tiny percentage of our users, we make things 
 harder for the vast majority. I dont think thats sensible. 

+1

Cheers,

Andi


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Petter Reinholdtsen
[Holger Levsen]
 I seriously doubt that. 
 
 We have to have the 486 kernel only for those people running ancient
 hardware.
 
 LTSP works fine with 686.

Well, LTSP failed to install from DVD when I updated the list of
kernels to included on the DVD.

I assume you have tested that this no longer is the case, given that
you claim that I am not telling the truth.

Nothing would make me happer, as the 686 kernel is a better
alternative for modern hardware.

Happy hacking,
-- 
Petter Reinholdtsen


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Holger Levsen
Hi,

On Samstag, 30. Oktober 2010, Petter Reinholdtsen wrote:
 Well, LTSP failed to install from DVD when I updated the list of
 kernels to included on the DVD.

Thats a very different statement then saying LTSP doesnt work with 686.


cheers,
Holger


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Andreas B. Mundt
Hi,

On Sat, Oct 30, 2010 at 04:12:41PM +0200, Petter Reinholdtsen wrote:
 
 Well, lets begin by exploring why it the 686 kernel is on the avoid
 list, then. :)
 
 It is on the avoid list because each kernel included in the DVD uses
 around 25-30 MB on the DVD.  That space can be used to include a lot
 of the packages we want to have included on the DVD.  We have to have
 the 486 kernel to get LTSP working, and we have to have the amd64
 kernel to get 64-bit installation working.  As having an extra kernel
 that was not absolutely needed pushed out several of the packages we
 want to install automatically during installation which made the DVD
 kind of useless by not being self contained, I decided the packages we
 wanted to install had higher priorty than a redundant kernel.
 

Let's drop blender. It's about the size of a kernel and will hardly be
used in any school. 

Andi


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Holger Levsen
Hi,

On Samstag, 30. Oktober 2010, Andreas B. Mundt wrote:
 Let's drop blender. It's about the size of a kernel and will hardly be
 used in any school.

Good idea.


cheers,
Holger


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Jonas Smedegaard

On Sat, Oct 30, 2010 at 05:56:16PM +0200, Holger Levsen wrote:

On Samstag, 30. Oktober 2010, Petter Reinholdtsen wrote:
Well, LTSP failed to install from DVD when I updated the list of 
kernels to included on the DVD.


Thats a very different statement then saying LTSP doesnt work with 686.


Word games again?

Petter did not write LTSP doesnt work with 686, but We have to have 
the 486 kernel to get LTSP working, for which his later message quoted 
at top of this mail is an elaboration, not a very different statement.



 - Jonas

--
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 * Tlf.: +45 40843136  Website: http://dr.jones.dk/

 [x] quote me freely  [ ] ask before reusing  [ ] keep private


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Petter Reinholdtsen
[Andreas B. Mundt]
 Let's drop blender. It's about the size of a kernel and will hardly
 be used in any school.

Blender was added (actually changed form suggests to recommends) in
version 0.848 with this changelog entry:

  * Raise the priority of blender in the graphics task from suggests
to recommends, as it is mentioned on
URL:http://www.slx.no/en/take-a-tour.

It was found to be part of the set of applications useful to promote
Debian Edu/Skolelinux, and this caused me to make sure it is installed
as part of the default installation for Squeeze.

I would rather drop some of the duplicate functionally listed on
URL: http://wiki.debian.org/DebianEdu/Status/Squeeze  before we
remove packages found to be soo good that they can be used to promote
Skolelinux.

The popcon.skolelinux.org numbers for blender are 1.9% machines have
it installed and 0.2% used it last week.  Not too surprising, as it
has not been part of any stable release yet.

I'm not against dropping blender, but I believe we should try to look
at the complete picture before we do so.

Happy hacking,
-- 
Petter Reinholdtsen


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Re: should we really avoid the 686 kernel image?

2010-10-30 Thread Holger Levsen
Hi Jonas,

On Samstag, 30. Oktober 2010, Jonas Smedegaard wrote:
 On Sat, Oct 30, 2010 at 05:56:16PM +0200, Holger Levsen wrote:
 On Samstag, 30. Oktober 2010, Petter Reinholdtsen wrote:
  Well, LTSP failed to install from DVD when I updated the list of
  kernels to included on the DVD.
 
 Thats a very different statement then saying LTSP doesnt work with 686.

 Word games again?

No.

 Petter did not write LTSP doesnt work with 686, but We have to have
 the 486 kernel to get LTSP working, for which his later message quoted
 at top of this mail is an elaboration, not a very different statement.


cheers,
Holger


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