1124 posts • joined 28 Jun 2011
Re: @Numpty Scrub the "fun" part about systemd
You do need to if the kernel is up[graded. And you actually want to USE the upgraded kernel.
If you are happy to run the existing kernel until you do a boot, well fine.
Parts of Mint that wont get upgraded in the live machine without a boot include the kernel, most things to do with grub, and most things to do with Plymouth, since these are involved in the boot process. Plus a few scripts that are involved at boot time.
Most of us who do upgrade kernels religiously do so because we hope to fix some problem and so we tend to try it out by rebooting immediately.
Re: Two thoughts
Exactly. Faced with SCO Unix missing libcrypt back in 19 something or other, I simply obtained the berkeley unix source, compiled it, debugged it and installed it.
The algorithm is not the secret, after alll.
Neither really is the implementation.
Given the algo it's what - a days work to write an encrypt/decrypt routine?
..is available on user forums.
The problem is reporting bugs as a noob to developers.
They simply dont want to know.
Re: Linux is finally ready for the desktop.
Yes. My experience really matches yours.
There are still bugs and things that dont work exactly as they should, but the latest Mint is - on reasonable standard hardware - perfectly optimised for a desktop.
Issues of power management and odd controls on laptops means its still slightly crappy to run on one if it isn't the 'right' one.
The ubuntu/mint team have it is true made an environment that is nauseatingly windows-like by default BUT if you want to start tweaking, its very rapidly and easily customisable.
It may not be what linux purists want to see, but of you are windows and fed up, Mint is easier to install, more stable and a lot cheaper ;-)
Re: I dont get it.
did I miss something?
Most of it.
First of all the generator to wheel efficiency is good - 80-90% .
The power station thermal efficiency is better than the car engine, so burning gas in a CCGT etc will net you better overall fuel efficiency.
You could instead burn uranium/thorium
Sadly its all for nothing as no material or technology currently offers a battery that can come close to competing with 70 litres of diesel or petrol.
What we need is a quantum level method of energy storage - like atomic nuclei - that releases photons into wires directly. And is reversible.
Re: Charging issues? Range?
Maths is clearly not your strong point then.
Whilst road fuel does represent a large fraction of our energy consumption it is not the overwhelming majority of it.
The electricity grid currently(sic!) transfers about 30% of our total energy usage through it, one way or another.
A steady trebling in size implemented over the next 25 years is not far fetched. Not as far fetched as a light safe affordable 200KWh battery.
Re: BRIAN COX....
Like any expert turned media luvvie, he knows his stuff. The problem is when he strays off his stuff.
Which is why junkie comedians think they can pronounce of economics, oscar winning actresses on climate change, and bunny huggers on engineering..
I am going to start sending random encrypted utter nonsense
on a randomly timed script to randomly selected targets.
That should keep the NSA busy for a while.
Re: Beware of seemingly low-cost gifts
yeah. Dimmers are bad boys with RFI and that means earth leakage with the filters.
As for emission spectra, again, yep. NOT ideal. daylight is broadband thermal emission, 'woite' leds and so on are lots of narrow band emitters.
I reckon that will get cracked eventually. But for now stick to incandescents.
Re: What IS the physics then?
physics is easy. find something with a band gap equivalent to a blue photon, and excite it.
hard bit is getting that material to the right purity in the right substrate.
But like carbon fibre. materials science problem.
Re: Curious - "simple, straight-forward and cheap filament bulbs"
That's the kind of thinking that causes people in country districts to buy second hand 4x4s because they are remarkably cheap, then discover how much they cost to run.
That's what I said to a bloke who had a 5 litre V8 muscle car.
His reply "BMW £28,000: this: £8,000. £20,000 buys a LOT of fuel..."
IIRC RED was first, then orange. Yellow and green were pretty much the same time I think
Indeed. Now mineral LEDS have a problem. They are a point source.
I have seen a MUCH broader area emit light with some organic light emitting polymers, that made them highly suitable (if they could have been stabilised) for a diffuse light source.
Sadly that company was chasing the wrong dream - organic LED panels - and went bust.
But I thunk the final answer to lighting may in fact be something more along those lines - a combination EV/fluorescent emitter coating a glass envelope, but NOT excited by a mercury plasma.
Not that I dont think LEDS are cracking good technology, but I think there may be cheaper ways.
as far as I can remember the trick is to fnd a substance with the right band gap to emit the color light you want.
Presumably gallium nitride fits that bill.
THEN the problem is to make something that emits light and lasts more than a nanosecond.
THAT was probably the real challenge.
good article in wiki
Re: Well, duh
Google terms such as 'arms length' and 'third party'
Is someone else buys the wreck and the debt wasn't all apples, then apple gets cheap glass, and doesn't lose out on any loans it may have made too badly.
I would make em ROM only. No flash, and burn new PROMS to upgrade
Mind you, I suppose if you can attach a CD player, you can change the ROM as easily.
I've already globally blocked all email from .me and .us
I might as well put in .gay as well.
actually D-link has been one of my better routers.
At the bottom is
For the home ADSL routers I have had experience of anyway.
There are definitely some a-holes in the community..
I once fixed a whole chunk of code. Sent it off to the developer.
"Oh that was all fixed years go - check out git latest' (iy was fixed only a few weeks ago)
I replied that wasn't much use if it depended on me then reinstalling and upgrading every library it depended on.
I think there is a deep disconnect between te people at the bleeding edge who are repsonsive for code fixes, and the people who are actually just trying to get the stock distro linux working.
The answer has been the likes of Mint and ubuntu., where not especially bleeding edge people share fixes and workarounds.
Therefore my point is this: If you are a linux noob, dont report bugs to the developer community. You will be asked to do things quite beyond your capabilities to check whether its a bug or not.
Go to the distro forums, where if you are lucky, someone has a fix in, and if not, it can go to someone a bit more senior to be reported.
Unless you have paid a support contract, remember no one is being paid to answer your questions.
Finally, if you had a bad experience 2+ years ago, try again. Mint in particular has spent a huge amount of time not in just getting the code to work, but in making sure installation works and there is little if any need to touch the command line, at least until a basics system is up and running.
And remember, Linus and this dude are having a private battle over something that, hopefully by the time you ever use it, will be sufficiently hammered into shape that you will never notice its there.
Re: probably too ambitious
All accomplishments start with a dream...
..and 99% end with a nightmare.
Now instead of costing 10 x nuclear power, it will only cost 8.5 x!
Shame about all the land area used though.
yep. joyriding cars has tailed off sharply because cracking a cars security is now beyond the average teenager
Are we doomed?
I think we should be told.
However you have missed a key point.
People also in addition to consuming, want to feel they have a right to consume. That means 'work' .
Despite the fact that less than 1% of 'work' actually 'creates wealth'
Arguing that actually the country would consume less and yet be just as wealthy if the default human state was sitting at home on benefits, won't win you any friends, or elections.
Notes is not just an email, its is a total rats castle of unsupportable code that is responsible for more support cost than any benefits it might have ever had.
Jimmy Saville - the man who took the U out of groupeware...
Re: Smoke, yes, but is there a fire?
Plenty of attempts to find something in cgi-bin that produces a result here on my public server, but there isn't anything in cgi-bin.
and the default shell is dash, not bash. So even though my debian is beyond upgrade, I am not concerned
Re: It's fascinating.
I get terribly worried and then go into it enough to understand it, and find I wasn't after all in any danger.
Re: I'll take my best shot
I WAS a network engineer and casting my eye over that I couldn't find much to fault it.
It bears a little amplification.
firstly it is a new network. to use it fully requires that every link in between be fully V6 or able to tunnel it. I think.
Secondly NAT will not go away. NAT is here, works, already implemented, and has many advantages for e.g. dumb consumers, and indeed corporates who can spend the time making it work right, insofar as its detractors consider that statement has any meaning.
Thirdly, it will take years to deploy. legacy kit will still be there in IPV4 in 20 years time, I am sure.
The problem is it doesn't actually offer any advantages I can see that mean you will rush to deploy it if you have V4 addresses already. I actually envisage that many organisations will deploy it internally long before they get rid of some NAT that turns it onto a V4 for tunnelling across the internet.
Finally, security and anonymity are looking to be bigger issues than running out of net numbers these days. so even if IP stays, what are the odds that some kind of other protocol replaces UDP/TCP to add some measure of man in the middle security and indeed, given the endless argument about who pays for the internet, what are the odds that some kind of 'chargeable packet' field isn't added somewhere. Imagine a field that increments every time it passes a node, representing the cost of getting that packet across a given route.
Back in the day, every year was going to be 'the year of Unix' . Well there never was a year of Unix, but ever since I first heard that phrase, one by one alternative operating systems have withered and died, until. we pretty much have Unix or Linux running most things apart from custom hardware with real time needs, and Microsoft.
Novell netware, NET BEUI, token ring, X-25 - X-400 none of these have vanished altogether: the key is you don't deploy them in new systems.
Some version of IPV6 will probably carry us through the next 30 years, but there will never be a year of IPV6 either.
Just slow steady incremental growth where it makes sense, once its as stable and reliable as V4 is.
Id like someone to comment on how big a BGP routing table has to be with IPv6 as well.
And as my wife discovered..
You can get Johnny Winter to sign a CD, or in fact two, 3 weeks before he dies.
Try that with an MP3.
I may be too sexist and misogynistic to have heard of it?
ALL of bashes features are obscure and rarely used.
Vampire Virtualised Blood sucking Operating system?
Is Linux a trademark?
Linux Pear, its Linux, its almost an Apple and it runs Windows apps...(but not windows).
Not even North Korea
has successfully pulled the plugs on the rest of the world.
I hear a green activist has just been deported from Russia as well.
So every cloud has a silver lining.
Re: How decisions bite you on the ass
Um... isn't /bin/sh linked to /bin/bash?
Not on any of my systems, no.
/bin/dash on all systems I control.
Re: what else lurks
Indeed. All debian derived stuff uses dash by default and bash only for user console work and you can fix that in /etc/passwd
Hm. So that was the reason thunderbird and Firefox...
suddenly were in the list of 'recommended updates'.
Oddly, it may have fixed an NNTP problem with thunderbird, too.
Whatever, at least the fixes are going in pretty much as soon as the problem is found.
The people it seems, want privacy more than they want security.
and in a democracy, they are supposed to be king.
The argument for police states is always to 'protect the citizens'
audio quid ueteres olim moneatis amici,
"pone seram, cohibe." sed quis custodiet ipsos
custodes? cauta est et ab illis incipit uxor.
Nothing changes in two millennia.
Re: Bash Vulnerability?
Well not me, intentionally.
The question is, does that mean I am safe?
Yes., what bothers me is that Apache by definition can read all the PHP stuff that it executes, and some of that contains passwords for databases and email addresses and the like.
Can apache be fooled into - say - shoving all my php scripts down a pipe to some remote eejit, and if so what so I need to do to stop it?
I am not sure I ever use CGI - the only active scripts are PHP intentionally.
the server is vintage debian. bash is available, but not sure if its the default i'd expect that to be dash.
Simple task: how can I test my apache server for vulnerability, how can I switch off CGI altogether?
Give me arbitrary execution on a server with Apache's privileges and I can do quite a lot with that. At the very least I can connect to whatever database powers your site ...
using whose login credentials? You dont think that a readonly access to limited data is te same as full access to everything and to get that password anyway, you need access to the scripts that employ them, and apache does nit have access to the scripts necessarily.
Re: National Security.
First rule of software vendoring.
Only admit there was a bug when the fix is already in place, and available as a high priced upgrade.
Re: That huge march in the US had effect.
The real question is what is the anti-scientific hogwash.
Right now its 6:1on, on AGW.
Everyone understands climate change ...
“Everyone understands climate change is occurring"
Ok, yes, we do.
"and the people who oppose it"...
I suppose that would be the Greens? and big Government?
... "are really hurting our children and our grandchildren and making the world a much worse place,”
Not much to disagree with there then.
Many a true word misspoken in haste.
We know who is denying climate change. The AGW boys. Who deny its stopped warming years ago.
We know who is damaging our children's future. People who tax the bejasus out of us in expensive, highly profitable but totally ineffective efforts to stop a problem that isn't happening.
Re: @Tim Worstal
rubbish. You could easily turn the whole lot into aluminium silicate and various other metal salts compounds, separate them out, re smelt them and make new cans.
By using vast amounts of energy.
You can recycle any element in whatever molecular compound you want, if you have access to infinite amounts of cheap energy. You can make diesel gasoline and tar from water and carbon dioxide.
What you can't do, except by nuclear transmutation, is make new elements.
The most entropic substance in the universe, into which, by current theories all matter will ultimately turn, is cold iron.
So even with nuclear transmutation, the universe relies on 'anything that isn't iron' to fuel the processes of existence.
We are surfing the entropy wave of the big bang, and when its spent itself on the beaches of reality, we will be left high and dry, and dead.
Re: Where's Worstall?
We can in principle add an infinite number of zeros to anyone and everyones bank account.
That is not what is at stake here however.
We can also define value as 'man hours achieving nothing of any value' as well.
That is not what is at stake here however.
To create something of use - say a house - takes either man hours of labour or a certain amount of entropy (free energy).
That is what is at stake here.
Growth in a post industrial society of anything of real value - I don't count shiny new thing as being of real value, when you are starving and thirsty and cold, as any street beggar will tell you (a hot meal and shelter is far more valuable than an I-phone) - is utterly dependent of cheap, in terms of energy and human effort, energy to power the machinery that makes everything else you actually need.
And low cost free* energy (of which renewable energy so called is not a member) is something we are running out of**.
If the price of food rockets, because the price of diesel and fertiliser rockets, because both are in fact packaged energy, and furthermore we now have 30 people between farmer and consumer, who all need to be paid more and more to have a decent lifestyle, when it used to be just two or three... then we are in a downward spiral.
*free in the thermodynamic sense, i.e. at low entropy
** except nuclear, which we have a huge amount of left.
Re: Re:model a whole years economic activity in the UK in less than a minute
Positive feedback is not the clue.
Understanding multiple lagging negative feedback in a non linear suite of equations is the clue to chaos.
The whole POINT about chaos is that it is both unpredictable, and yet utterly deterministic.
Re: All been done before
The problem is that economics doesn't actually conform to any models that actually seem to work.
And the way economics has been run since WWII is by using debt to kick start investment into a bigger and better tomorrow. On the basis that growth solves the debt problem. More weath tomorrow repays the debts of today.
That fell apart when it became fairly obvious* that other constraints than money supply were limiting growth, and banks and governments turned to funding consumption, not capital plant and infrastructure, sometime in the late 90's.
*except to banks, politicians and economists.
Re: If you give a politician 1£ ...
A computer was asked to write a bug free program.
Definitely bug free.
If the caffeine hasn't yet kicked in, the point is that computers may well be able to write better programs than humans, in a narrow technical sense: the problem is deciding which programs to write...
What costs, is capacity and content.
What you pay for, is connectivity, and adverts.
Charging for You tube packets so the money went back to the you tube creator minus a slice for you tube for hosting it? Sounds better to me than having everywhere littered with adverts.
Mind you, on pay per view TV, you pay and STILL get the adverts..
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