Re: [Dorset] Using the host file

2013-05-24 Thread Andrew Morgan

On 23/05/2013 17:16, Tim wrote:

So I edited the /etc/host file as follows


Do you mean '/etc/hosts'?
It seems from a later post that your ping looked up the correct IP 
address, so presumably you did edit the correct file, but I thought it 
would be worth checking.


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Re: [Dorset] [OT] Video Slide show with digital photographs

2013-05-19 Thread Andrew Morgan
It depends what you're doing. If you want to distribute this as a DVD 
then you want to select PAL DVD. The 1080 options are all 
high-definition and I rather doubt any DVD players could play this. 
Blu-ray players could, but are they common yet? I recently saw a Blu-ray 
writer drive for around £60.


If this is for a slide-show that you are going to be controlling then 
you might want to consider creating a 1080 movie, preferably 1080p not 
1080i (i means interlaced, and AFAIK there are about zero HD TVs where 
this is needed), and then putting it on to a Raspberry Pi. This has an 
HDMI output for HD TVs and a composite video output for SD TVs.


It seems common for TVs to have ethernet ports and USB, I wonder if SD 
cards or USB sticks can be used on most TVs these days?


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On 19/05/13 12:02, Tim wrote:


Sorry for being slightly OT, but a quick question if may. I am going 
to make a video slide show using digital photographs (300+ images). I 
have two questions, I get various options as to what Profile I want 
the video to be in, DV\DVD Pal, HD 1080i (with various frame speeds), 
HDV 1080 25i 1920 x 1080 etc.. etc.. What is the best to use. I would 
like to have the eventual video playable on a normal DVD\TV 
combination if at all possible.


Secondly and probably related to the above, all the photograph are in 
various resolution, what would be the best resolution to change them 
in to??


Thanks in advance

Tim





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Re: [Dorset] Google to Give Away 15, 000 Raspberry Pis to UK Schools

2013-01-29 Thread Andrew Morgan

On 29/01/2013 20:27, Peter Merchant wrote:
Well, Perhaps that will bring down the prices of HDMI monitors. I 
couldn't find one under £103

P.



There are cheaper ones with DVI, and/or sold as TVs.

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Re: [Dorset] Hi, new member. Local paid support

2012-12-07 Thread Andrew Morgan

On 06/12/2012 12:27, Jago Pearce wrote:

- update a bios that doesn't always boot; need to add an .img option
to grub2 to get DOS, which is required for the flash


Flashrom might help, if it supports your motherboard (chipset) and flash 
chip.

http://www.flashrom.org/

That or write a FreeDOS USB stick or bootable CD/DVD.



- when scrolling up in console mode terminal, how to stop the
scrolling from interrupting what I'm reading (wondered about this for
years)


I use Scroll Lock. :)

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Re: [Dorset] New DVD writing error

2012-06-14 Thread Andrew Morgan

On 14/06/2012 20:36, Peter Merchant wrote:

Devices
---
TSSTcorp CDDVDW SH-222BB SB00 (/dev/sr0, CD-R, CD-RW, CD-ROM, DVD-ROM, 
DVD-R, DVD-RW, DVD-R DL, DVD+R, DVD+RW, DVD+R DL) [DVD-ROM, DVD-R 
Sequential, DVD-R Dual Layer Sequential, DVD-R Dual Layer Jump, 
DVD-RAM, DVD-RW Restricted Overwrite, DVD-RW Sequential, DVD+RW, 
DVD+R, DVD+R Dual Layer, CD-ROM, CD-R, CD-RW] [TAO, Restricted 
Overwrite, Layer Jump] [%7]
TSSTcorp CDDVDW SH-222BB SB00 (/dev/sr1, CD-R, CD-RW, CD-ROM, DVD-ROM, 
DVD-R, DVD-RW, DVD-R DL, DVD+R, DVD+RW, DVD+R DL) [DVD-ROM, DVD-R 
Sequential, DVD-R Dual Layer Sequential, DVD-R Dual Layer Jump, 
DVD-RAM, DVD-RW Restricted Overwrite, DVD-RW Sequential, DVD+RW, 
DVD+R, DVD+R Dual Layer, CD-ROM, CD-R, CD-RW] [SAO, TAO, RAW, 
SAO/R96P, SAO/R96R, RAW/R16, RAW/R96P, RAW/R96R, Restricted Overwrite, 
Layer Jump] [%7]



Is there any reason /dev/sr0 and /dev/sr1 show different results here?

Do they have the same (and latest) firmware?
I tend to check using 'dmesg' and searching the output for 'sr0', the 
line above the first instance of 'sr0' tends to be the correct one with 
drive info, eg. mine here says:


[1.865700] scsi 0:0:0:0: CD-ROMTSSTcorp DVDWBD SH-B123L  
SB03 PQ: 0 ANSI: 5


Which is firmware SB03. I have just checked 5 drives and they all have 
the firmware version in the same place, so I am assuming it will be there.


I would be tempted to try one drive at a time, and writing an ISO (UDF, 
etc.) image, possibly using 'wodim'.


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Re: [Dorset] Raspberry Pi --- necessary accessories

2012-03-09 Thread Andrew Morgan

The ideal thing would be a USB keyboard with a built-in hub, Mac style.

The USB wireless keyboard/mice are fine, the computer sees it as a USB 
HID device with a battery level monitor. Unfortunatly it will keep 
bugging you about low battery within days of changing them if you use 
rechargable batteries. They'll keep running for ages, but it thinks they 
are low because of the lower voltage.


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Re: [Dorset] OT: Backup Software for Windows

2012-03-05 Thread Andrew Morgan


On 05/03/12 21:40, Terry Coles wrote:

So I'm looking for a good Windows Backup program than does incremental backups
(not sync) to external drives. My niece is quite switched on, so I'm sure
she'll get the hang of it without too much difficulty, but (like anything) if
using it is too clunky she'll stop. It needs therefore to be reasonably easy
to get working for a lay person and also to get data back when needed.

Any ideas?



Cygwin + rdiff-backup?

Can be run on demand from a shortcut or on a schedule.

IIRC, the syntax to create a backup is pretty much 'rdiff-backup $source 
$destination'.


In case you haven't used rdiff-backup before, you'll end up with a copy 
of the files which can be recovered easily using regular file-system 
tools (the sync method you said you didn't want ;) ) but as well as that 
you can recover to any point at which you created a backup, as it stores 
diffs or similar.


Of course as it never deletes anything automatically the disk might run 
out of space if there are lots of changes, but it is possible to remove 
older backups somehow. I don't know how as I haven't run out of space on 
my rdiff-backup target yet so I haven't needed to look up how to do it. :)


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Re: [Dorset] Copying DVD's to USB sticks

2011-11-03 Thread Andrew Morgan
I haven't used a GUI to do this, but I have done it for a lot of DVDs*. 
Whatever method you use you will need to install libdvdcss2 on your 
machine, so it can decrypt the DVD. In Ubuntu, which is what I tend to 
use, this isn't simply a package. Installation instructions are here:

https://help.ubuntu.com/community/RestrictedFormats/PlayingDVDs
It appears there are only two steps required to install it.

What I would do is:

Install 'libdvdcss2'.
Install 'vobcopy'.
Open a terminal and type:
cd /path/to/USB/stick/
vobcopy -m

This will create an unencrypted copy of the DVD in whichever directory 
you changed to. This does no transcoding or anything, it simply creates 
a VIDEO_TS structure. It will be the same size as the original, and dual 
layer DVDs can I believe be up to around 8.7 GB. I don't know of any GUI 
way to do it, but I don't think those commands are too difficult. :)
'vobcopy -m' will create a directory named the same as the name of the 
DVD, which sounds great except that a lot of DVDs aren't named very well 
at all. “DVDVolume” is quite common. I've even got a couple of TV 
series' where three of the four discs are named with a common format, 
and one isn't.


* I have also travelled outside of the UK to places where copying a DVD 
for personal use is not illegal.


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Re: [Dorset] rsync with compression

2011-06-26 Thread Andrew Morgan

On 26/06/11 17:40, Tim wrote:
I have a single disk nas which I back up to a external hard disk using 
rsync, the total amount of data I backup from the nas is about 235gb. 
At the moment I use rsync to copy it from the nas to the external hard 
disk, but I am thinking about using the -z option to add compression 
but have a couple of questions


1) what would happen if I just add the -z option to my existing command?


From the man page:
-z, --compress  compress file data during the transfer

The resulting files would be the same, the compression is only for the 
data transfer, which makes more sense when you are using rsync over the 
internet, perhaps via SSH.


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Re: [Dorset] IPv6 day are you ready

2011-04-21 Thread Andrew Morgan

On 21/04/11 20:21, Chris Dennis wrote:
I've just had a couple of emails from Jason Fesler who runs 
test-ipv6.com, and he says:

\
Unless you're trying to reach sites that are IPv6-only and have no 
way to be reached via IPv4, I'd consider disabling teredo and 
miredo.  You're intentionally prefering complex setups that can take 
your packets through further routes, and through locations you have 
nobody to complain to when they break.


http://en.wikipedia.org/wiki/Teredo_tunneling
http://technet.microsoft.com/en-us/library/bb457011.aspx


Is that true?  Do teredo/miredo make connections more complicated for 
IPv4 addresses?


If your only IPv6 connection is via Teredo, and if the site you are 
trying to reach supports both IPv4 and IPv6, and if your software 
prefers IPv6 over IPv4 then yes, it will send the connection via Teredo 
rather than directly by IPv4.


If the site is IPv4 only then no, it won't be more complicated. If the 
site is IPv6 only then it is via Teredo or nothing.


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Re: [Dorset] IPv6 day are you ready?

2011-04-20 Thread Andrew Morgan

On 20/04/11 12:42, Chris Dennis wrote:

Can anyone recommend a suitable wifi-enabled ADSL router for IPV6?
The only one I've used was a 2Wire router, a long time ago. I think BT 
were doing an IPv6 test and I was surprised to find I got a real IPv6 
address on it.


Your best bet might be something which you can run OpenWRT on. Only 
trouble is their list of supported hardware doesn't seem to include 
anything which does ADSL, so you would have to get an ethernet (or 
'cable') router and an ethernet ADSL modem.
I've got a D-Link DIR-825 running OpenWRT and it was fairly easy to 
install. I don't have it connected to ADSL though.


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Re: [Dorset] IPv6 day are you ready

2011-04-19 Thread Andrew Morgan

On 19/04/11 22:49, Tim wrote:

Thought you might like this

http://test-ipv6.com/



Well, my ISP and router don't support IPv6 but I discovered Miredo 
(Teredo) a while ago. It doesn't seem to work if both ends are using 
Teredo behind IPv4 NAT, but other than that it does allow you to connect 
to the IPv6 internet.


In Ubuntu (and presumably Debian?) IPv6 support is as easy as 'apt-get 
install miredo'. It seems to be made of magic as it sets its self up 
automatically in seconds. I've done this on all of my Linux machines now.


With Miredo I got 10/10 and 9/10 because my ISP's DNS server doesn't 
support IPv6.


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Re: [Dorset] IPv6 day are you ready

2011-04-19 Thread Andrew Morgan

On 20/04/11 00:07, Ralph Corderoy wrote:

Hi Andrew,


With Miredo I got 10/10 and 9/10 because my ISP's DNS server doesn't
support IPv6.

Do you get that elusive last point if you switch to 8.8.4.4 and/or
8.8.8.8?

No, still 9/10.

According to the info on the test which fails:
*Confirmation:* |dig  .v6ns.test-ipv6.com| should return back an 
 record without errors.

This returns SERVFAIL when using 8.8.8.8 or 8.8.4.4 as DNS servers.

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Re: [Dorset] USB 1-2 problem

2011-03-14 Thread Andrew Morgan
I believe keyboards  mice are all USB 1.1. I have some USB 1.1 devices 
working on Ubuntu.


If it is a 54mbit (or faster) USB device then I would expect it to be 
USB 2, otherwise it is limited to 11 Mb/s or thereabouts.


'lsusb -v' will show you a lot of information. The 'bcdUSB' lines show 
you the USB version in use by a particular device.


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Re: [Dorset] Music CD's to Disk

2011-01-03 Thread Andrew Morgan

Hi,

The simple answer is FLAC.

A more complex answer is that audio CDs don't actually contain files or 
a regular filesystem at all. Some O/Ses allow you to view the CD as if 
it contained files, but they aren't files in the normal sense.


OGG, assuming this means OGG/Vorbis, is a lossy format. I don't know 
.cda. WAV is a lossless and uncompressed Microsoft format. FLAC is free 
format which is losslessly compressed. I would rip all CDs as FLAC then 
you have the original data. You can then compress this to OGG/Vorbis or 
MP3 later, which should be fairly easy and can be batch processed for 
all tracked ripped from all CDs.


If you're ripping lots of CDs then I've used a program called 'abcde' 
which might be useful. It can be configured to output FLAC and get the 
track names from the internet. It does some parallel processing too, 
compressing the original data to FLAC in the background.


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Re: [Dorset] IPV6 article in Daily Telegraph

2010-11-13 Thread Andrew Morgan

On 13/11/10 14:10, Peter Merchant wrote:

After reading this article in the telegraph today
http://www.telegraph.co.uk/technology/internet/8126181/UK-will-run-out-of-web-addresses-by-2012.html

About Vint Cerf saying that the Uk will run out of IP (V4) addresses by
2012, I wondered  if my Router would support IPV6 on the Internet Side.
Will yours?

I use a 3Com Wireless router.


I have a D-Link DIR-825 running OpenWRT which does IPv6. All devices 
which you can run OpenWRT on should have IPv6. But I'm not using it as a 
router and my ISP doesn't do IPv6 yet. This isn't an ADSL router though, 
I'd need another device to actually use it as an internet router. My 
ADSL router is a Netgear DG834Gv3 which, good as it is, doesn't support 
IPv6 and OpenWRT hasn't been ported to it.


I used a 2wire router a few years ago which was on some BT internet 
connection (they have so many names for their internet services it's 
hard to keep track!) and not only did the router support IPv6 but my 
laptop got an IPv6 address, which worked! I'm not sure if that was a 
testing phase at BT or what though.


The other day I installed Windows 7 in a kvm virtual machine, using 
kvm's default networking setup, and somehow Windows managed to get a 
real routable IPv6 address! I'm not sure how it did that as there's no 
IPv6 on my network at all. Or was it kvm? I'd love to know how that 
happened. I then re-booted the VM and since that Windows networking 
hasn't worked. At all.


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Re: [Dorset] Evolution mail settings....

2010-10-11 Thread Andrew Morgan

On 11/10/10 22:10, Bryn Jones wrote:

The resolution is fine
Just the window running off screen
   


In Ubuntu/Gnome there are some useful mouse + keyboard combinations: Alt 
+ left button to move a window, Alt + middle button to resize a window.


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Re: [Dorset] Has TBD for next meeting been D'd

2010-10-01 Thread Andrew Morgan

On 01/10/10 14:00, Natalie Hooper wrote:

Thanks for the link.

Looking at the timetable, the evening service is pretty bad. There's a bus
(back to Bournemouth) at 20.15 then at 22.15 (
http://www.wdbus.co.uk/uploads/13may10.pdf). And that's it. Not a bus
service you can rely on (I don't call having to wait 2 hours for a bus a
reliable service).

As a public transport user, this makes it a non-goer for me unfortunately.
   
I don't think there's much point worrying about if buses and trains go 
where you want when you want, from what I've seen they never have and 
never will. But for anyone who has to rely on public transport don't 
forget there are plenty of taxis out there and their drivers work all 
night, and they'll take you from wherever you want to wherever you want 
without any faffing about between.


As far as pubs go I would prefer one out of the towns and cities, and 
definitely away from any surveillance.


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Re: [Dorset] It's been a year in the pipeline.

2010-09-16 Thread Andrew Morgan

On 11/09/10 16:38, Peter Merchant wrote:

After reading this, and thinking about the cars speeding up our road, I
wondered how hard it would be to write a speed camera program for a
webcam.
   


I believe there is a phrase about asking can I do this before asking 
should I do this.


Sounds like this would be something similar to the 'community speed 
watch' scams. If so the results will be:

· Most people aren't speeding.
· The ones who are are your neighbors.
· You'll get bored of it quickly when you realise that you can't 
actually /do/ anything.


Now lets get rid of all this spying technology and start treating each 
other like humans.


(Also a company has had this idea already, they're called (or, were 
bought by) RedSpeed. Their devices are little better than two or three 
web cams and a computer running DOS.)


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Re: [Dorset] Thunderbird encoding format

2010-04-25 Thread Andrew Morgan
On 25/04/10 12:09, Clive A Wills wrote:
 Information and guidance sort on character encoding in Thunderbird and
 Ubuntu 9.10. (may not just apply on e-mail programs).

 For some reason I've started getting strange characters appearing in
 some e-mails, a black diamond with a ? mark in the centre.
 Now my encoding was set to Unicode UTF-8. Ive now changed it to Western
 (ISO 8859-1) which appears to fix the problem. :-)
 But what is the difference between Unicode, ISO 8859-1, ISO 8859-15 etc?
 Which is the best to use and why?

 I know someone out there will know but please keep it simple and basic.
This is the sort of question 'new users' may have and that is where
 the LUG is good at - experience.


Everything in a computer is a number. Binary. So what you see as text is 
a stream of binary numbers. The computer needs to know what those 
numbers mean. They could simply be numbers, or in this case they are 
text. So what you need is a 'lookup table' of sorts to know which number 
represents each character.
You'll probably know ASCII, which is an older 7 bit encoding, allowing 
encoding of all the characters which Americans need. Note that ASCII has 
no pound sign. If you use £ you're using something else. Many, many, 
many other character sets have been created (there seems to be good info 
on them on Wikipedia).

When it comes to displaying e-mails other people have sent the answer is 
that your e-mail program has to be using the same encoding as the 
sender, otherwise it won't look right. For example in ISO8859-1 1010 
0110 (0xA6) means ¦ 
https://secure.wikimedia.org/wikipedia/en/wiki/%C2%A6 but in 
ISO8859-15 it is Š 
https://secure.wikimedia.org/wikipedia/en/wiki/%C5%A0. This is of 
course the same with any text document, HTML page, etc.
E-mails (and HTTP) have a header to tell the client what the encoding 
is. Your last e-mail said:

Content-Type: text/plain; charset=us-ascii

Strangely that is not ISO8859-1 as you suggested you were now using. 
Maybe the mailing list changed it in which case my message will get 
broken. Or maybe something detected that your message didn't use 
anything outside of ASCII so used that because it fits? If an e-mail is 
sent without this header then the receiving e-mail client has to guess 
which encoding to use, or use your default. That's where problems happen.

What we really need is a standard, and that would be Unicode. It has all 
the characters from all other common character sets available plus 
thousands more you never knew you needed. However this has a slight 
problem, in most character sets all characters can be encoded using 8 or 
16 bits. With the number of chars available in Unicode, 16 bits isn't 
enough to encode them all, but 32 bits would be quite excessive to 
encode most common characters. So there's a few different ways to store 
Unicode values. UTF-8 is one, and it is good for English (Latin) text, 
especially as the first 128 chars are exactlly the same as ASCII. 
Because of the way it works, some reasonably common UTF-8 chars can end 
up being 3 or 4 bytes long, so if you have a lot of them (think Chinese) 
then UCS-2 can be better.  That's always 2 bytes per character.

Actually, in Unicode they aren't called characters, they are called code 
points. The reason being that you can use multiple code points to create 
one character. It isn't that complicated, for example code points U+0045 
(LATIN CAPITAL LETTER E) and U+0301 (COMBINING ACUTE ACCENT) make this: 
É. And if you want you can go a bit silly and make something like 
this: E̮̽͜F, which is made up of 5 code points. Let's hope your font can 
display that. :)

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Re: [Dorset] OT: (Almost) Copying a humungous amount of data between NTFS Partitions

2010-01-23 Thread Andrew Morgan
Terry Coles wrote:
 Before I kick it off again can someone confirm that I'm using the right 
 incantation?  I used cp -rp  source destination.
   
What you have there should be fine for anything on NTFS. I would go for 
'cp -a source destination' which sets -rp and other options to copy 
special files correctly, or 'cp -av source destination' to be verbose 
about it.

Well no, I'd actually use 'rsync -av source destination'. If I stopped 
and started the copy again I'd add -u (update only) and possibly -c 
(skip files based on checksum rather than datetime).

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Re: [Dorset] Dorchester Pub Meeting, Tonight, 2010-01-05 20:00.

2010-01-05 Thread Andrew Morgan
C A Wills wrote:
 (Lost the pound sign and seem to have a USA keyboard!!)
   
Press CTRL+Shift+U, then press A, 3, Enter. Does that produce a pound sign?


I haven't seen any snow yet by the way.

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Andrew.


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Re: [Dorset] Goodies for Reasons Harvest

2009-12-06 Thread Andrew Morgan
Dominic Lonsdale wrote:
 Is this not getting a bit over complicated ?

 I just made a bootable USB thumb drive (or flash drive or whatever they
 are called now) and plugged it in.
   
The CD  USB process used to be complicated, also it requires that you 
have a spare USB flash drive which is large enough. I suspect that it is 
a good method for a lot of people.
I have created the boot CD already, and I have spare CD drives lying 
around. So for me that's the easiest way to do it.
I also suspect that all laptops/netbooks made these days with USB but no 
optical drive will come with BIOSes which can boot from USB optical drives.

And yes, the USB to ATA adapters are available in many places. I have 
one which looks suspiciously similar to this: 
http://cpc.farnell.com/_/psg02625/usb-2-0-to-sata-ide-combo-adaptor/dp/CS15616
Comes with a power adapter which isn't pictured. SATA and PATA 
connectors work at the same time, too.

I say USB to ATA rather than IDE because IDE is the wrong terminology 
and always has been. :)

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Andrew.


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Re: [Dorset] Running EEE Xandros in a Virtual Machine

2009-10-21 Thread Andrew Morgan
Terry Coles wrote:
 - I can 'see' an xorg.conf if I do ls X* in /mnt-system/etc
Capital vs. lowercase X? If you really are doing this then I suspect it 
is listing the contents of /mnt-system/etc/X11/ which happens to only 
contain xorg.conf?

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Andrew.


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Re: [Dorset] help in sorting files for duplicates

2009-07-23 Thread Andrew Morgan
I've used a GUI program called 'fslint' to do this in the past, it works 
quite well.

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Andrew.


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Re: [Dorset] Slightly O/T: Technical authoring decisions...

2009-07-08 Thread Andrew Morgan
Hugh Frater wrote:
 I know that microsoft
 now want to eol CHM support and move to something else (I can't
 remember what exactly though) and this replacement might be easier?

   
In vista, looking in %WINDIR%\Help there are quite a few files ending in 
.h1s. These appear to be MAML format.
http://en.wikipedia.org/wiki/Microsoft_Assistance_Markup_Language

Double-clicking on them doesn't open them in any kind of MAML viewer, so 
that doesn't seem to be much of an improvement over CHM or HLP files.

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Andrew.


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Re: [Dorset] printers

2009-06-10 Thread Andrew Morgan
Simon P Smith wrote:
 On Wed, 10 Jun 2009 05:08:51 -0700 (PDT), greg oconnell
 greg.oconn...@yahoo.co.uk wrote:
   
 Does anybody know which printer manufacturers support Linux (Ubuntu
 specifically). I know HP does - any others?
 

 Irrespective of the manufactures support you will find a vast number of 
 printers are supported on Linux.  I am constantly amazed the number of 
 printers I attached on USB or network ports and my Ubuntu server
 just works with them.  Occasionally need to google and find
 a ppd file for a rarer printer
Am I right in thinking that, in general at least, if they support MacOS 
then they have written drivers for CUPS and they will work on Linux?

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