Nix | 1 Jan 01:19 2010
Picon

Re: LyX/TeX question

On 29 Dec 2009, Richard Jones uttered the following:

> On Tue, Dec 29, 2009 at 09:28:05AM -0000, Walter Stanish wrote:
>> > I need to draw things such as finite automata, logic gates, boolean
>> > equations etc
>> 
>> For finite automata and logic gates, consider graphviz.  (My second
>> recommendation would be Dia, though that's already been suggested.)
>> 
>> Graphviz is *really* great!  Basically you define a simple text file
>> called a 'DOT file' with nodes and their relationships / labels / 
>> properties.  Graphviz ties them all together and outputs SVG/PNG/EPS/
>> HTML image maps (eg: if you want clickable components)...
>
> Graphviz is great, but I don't think I'd want to use it for drawing
> anything that wasn't a mathematical graph.

I've drawn ERDs with it before, simply because stating things in text
form is so much less hellish than using some bloody GUI to do it. But,
no, it's not well-suited: you have to do lots of constraint work to stop
its layout algorithms putting nodes in strange places.
--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug

Nix | 1 Jan 01:25 2010
Picon

Re: Wiping free space.

On 29 Dec 2009, JLMS uttered the following:
> If you do something like that in your / filesystem, then yes, you will
> see all kind of weird behaviour.

Really? What? The only things that spring to mind are that /etc/mtab
can't be kept up to date if there is absolutely no space free, and
/sbin/ldconfig will fail, so newly-installed shared libraries won't be
picked up. (I'm assuming here a / containing only those things which
*must* be on /: in particular I'm assuming /var is a separate
filesystem, as are /home and /tmp.)
--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug

Nix | 1 Jan 01:29 2010
Picon

Re: Wiping free space.

On 29 Dec 2009, Alain Williams told this:
> On Tue, Dec 29, 2009 at 04:08:49PM +0000, Richard Jones wrote:
> If you don't know what is running, this will remove stuff more than 1 hour old:
>
> 	find /var/tmp -mmin +60 | xargs rm -f

My bete noire is sysadmins who do this sort of thing to /tmp or /var/tmp
on multiuser systems. As an extreme case, I have seen (and written)
packaging systems which allow every individual shell process to have its
own set of installed packages (or at least binaries) by pointing $PATH
through dynamically-created symlink farms in /tmp (pam_mount would help
a bit here but it doesn't work very well on Solaris 8). Blow old stuff
in /tmp away and suddenly half your binaries vanish out from under
you...
--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug

pmgazz | 1 Jan 17:50 2010
Picon

Re: Gllug Digest, Vol 78, Issue 56

I was approached recently by a school near Brighton (UK) who wanted to
sort out their dire CMS. Looked into it, seems their local education
authority required them to use a specific Microsoft Certified supplier
-- rarely seen such comprehensively enforced lock-in in my life and I
get the impression that LEAs often enforce this kind of lock-in.

On top of that, experience with NGOs teaches me that besides the FUD
factor instilled by their existing suppliers, they'll have all kinds of
multifunction printers, video equipment and god-knows-what that doesn't
have adequate (or any) Linux driver. Schools are also full of all kinds
of non-Linux-friendly kit - including whiteboards. I think it'd need
serious buy-in by officialdom for sensible planning - they would be able
to make a substantial case to whiteboard (and other hardware)
manufacturers that it'd be worth their while to provide adequate Linux
drivers. Most of their data will probably be in proprietary formats too.

I certainly think it'd be worth running demos of Edubuntu and try to
start building enthusiasm for Linux in schools from the ground up - in
my experience, teachers love it (or don't care what system is used) -
it's usually bureacrats who've had all manner of FUD banged into their
heads. But I think it'll be a gradual process, the migration issues are
usually far from insubstantial.

Paula
>
> Message: 2
> Date: Wed, 30 Dec 2009 13:45:56 +0000
> From: Bernard Peek <bap <at> shrdlu.com>
> Subject: Re: [Gllug] Technology and UK Education
> To: gllug <at> gllug.org.uk
(Continue reading)

Chris Bell | 1 Jan 19:15 2010

Re: Gllug Digest, Vol 78, Issue 56

On Fri 01 Jan, pmgazz wrote:
> 
> I was approached recently by a school near Brighton (UK) who wanted to
> sort out their dire CMS. Looked into it, seems their local education
> authority required them to use a specific Microsoft Certified supplier
> -- rarely seen such comprehensively enforced lock-in in my life and I
> get the impression that LEAs often enforce this kind of lock-in.
> 

   It is often worse than that because most school IT facilities are
supplied as part of contracts that specifically forbid any hardware or
software changes not provided by the contractors. A friend was asked to
provide additional facilities for a school, with a number of computers in
an additional classroom, with its own cabling and server, to be totally
independant of the system provided by their regular supplier, as the only
possible alternative.

-- 
Chris Bell www.chrisbell.org.uk (was www.overview.demon.co.uk)
Microsoft sells you Windows ... Linux gives you the whole house.

--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug

JLMS | 2 Jan 00:41 2010

Re: Wiping free space.

On Fri, Jan 1, 2010 at 12:25 AM, Nix <nix <at> esperi.org.uk> wrote:
> On 29 Dec 2009, JLMS uttered the following:
>> If you do something like that in your / filesystem, then yes, you will
>> see all kind of weird behaviour.
>
> Really? What? The only things that spring to mind are that /etc/mtab
> can't be kept up to date if there is absolutely no space free, and
> /sbin/ldconfig will fail, so newly-installed shared libraries won't be
> picked up. (I'm assuming here a / containing only those things which
> *must* be on /: in particular I'm assuming /var is a separate
> filesystem, as are /home and /tmp.)

You assume far too much.

The installation standards that you, or even the majority of seasoned
SAs, consider sane are by no means unanimous.

There are pros and cons for every way of doing things, suffice to say
that a sizeable amount of people prefer to have only one filesystem in
/ and dump everything there, I will not take sides about that way of
doing things, the fact is that one will find many machines installed
that way.
--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug

Justin Perreault | 2 Jan 00:47 2010

Need to buy a laptop in next couple of weeks.

Hi all,

In short I need to buy a laptop.

A powerful netbook might work as might leasing one for a week here and
there.

Need to use a sun remote desktop to access a windows machine while on
the road.

I am comfortable with Fedora and would like to be able to install F12 on
the device. I have already been using the sun remote desktop on a F12
desktop.

Otherwise it will be used for email and internet. It will also need to
be encrypted.

Under £500 if I can, but that can be stretched if absolutely needed.

And finally the keys need to be bevelled, the "style" of flat keys where
you cannot be sure where one key stops and the next begins just won't
work for primary user.

I am currently searching the web for linux laptops, however I am hoping
someone here has been party to a recent purchase they can recommend.

Many thanks,

Justin
--

-- 
(Continue reading)

JLMS | 2 Jan 00:48 2010

Re: Wiping free space.

On Fri, Jan 1, 2010 at 12:29 AM, Nix <nix <at> esperi.org.uk> wrote:
> On 29 Dec 2009, Alain Williams told this:
>> On Tue, Dec 29, 2009 at 04:08:49PM +0000, Richard Jones wrote:
>> If you don't know what is running, this will remove stuff more than 1 hour old:
>>
>>       find /var/tmp -mmin +60 | xargs rm -f
>
> My bete noire is sysadmins who do this sort of thing to /tmp or /var/tmp
> on multiuser systems. As an extreme case, I have seen (and written)
> packaging systems which allow every individual shell process to have its
> own set of installed packages (or at least binaries) by pointing $PATH
> through dynamically-created symlink farms in /tmp (pam_mount would help
> a bit here but it doesn't work very well on Solaris 8). Blow old stuff
> in /tmp away and suddenly half your binaries vanish out from under
> you...

In an emergency, when the machine is not working at all any way, one
is entirely justified to go to /tmp and remove stuff up, front and
centre if one has identified that the problem is related to the amount
of space available there.

As for /var/tmp it is less likely that things stop working if it fills
up, but once you get to know your systems, it may also be a
justifiable decision to clean up there as well.
--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug

Juergen Schinker | 2 Jan 15:26 2010
Picon

26c3 also most in english

https://events.ccc.de/congress/2009/wiki/Conference_Recordings

i recommend the rss-feed with bittorrent and mp4
--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug

Jasper Wallace | 2 Jan 19:08 2010
Picon

Re: Need to buy a laptop in next couple of weeks.

On Fri, 1 Jan 2010, Justin Perreault wrote:

> Hi all,
> 
> In short I need to buy a laptop.

> I am currently searching the web for linux laptops, however I am hoping
> someone here has been party to a recent purchase they can recommend.

Although they don't do linux machines specificly, you can buy laptops
without an OS from http://www.pcspecialist.co.uk/ . I can confirm that at
least the 15.6" Enigma has beveled keys (tho it's a bit over your budget).

-- 
[http://pointless.net/]                                   [0x2ECA0975]
--

-- 
Gllug mailing list  -  Gllug <at> gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug


Gmane