NASA astronauts splash down in SpaceX capsule as historic missionreturns to Earth

That's what a Linux operating system can do.

On 2020-08-02 3:19 p.m., Johnny wrote:


That's what a Linux operating system can do.



Plus Large dollops of money, and engineering smarts.

Rene

Johnny wrote:

That's what a Linux operating system can do.

If I adopt the Linux operating system as my One True Jesus,
what size Rocket will I have to buy ? :-)

sudo apt install nerd-in-a-can
sudo ./nerd-in-a-can --type-it-for-me --fix-my-computer

It could happen. Please and thank you, One True Jesus. Amen.

By the way, I need to adjust the width of that scroll bar...
Oh... What's that ? Get the source and what ? Why
are you telling me this ??? Oh... Something about Stallman.
I see. And that's the way it has to be ? Oh...

sudo ./nerd-in-a-can --type-it-for-me --fix-my-computer --recompile-from-source-and-fix-scrollbar

Paul

On Sun, 02 Aug 2020 20:19:50 -0400
Paul wrote:

Johnny wrote:

That's what a Linux operating system can do.

If I adopt the Linux operating system as my One True Jesus,
what size Rocket will I have to buy ? :-)

sudo apt install nerd-in-a-can
sudo ./nerd-in-a-can --type-it-for-me --fix-my-computer

It could happen. Please and thank you, One True Jesus. Amen.

By the way, I need to adjust the width of that scroll bar...
Oh... What's that ? Get the source and what ? Why
are you telling me this ??? Oh... Something about Stallman.
I see. And that's the way it has to be ? Oh...

sudo ./nerd-in-a-can --type-it-for-me --fix-my-computer
--recompile-from-source-and-fix-scrollbar

Paul

Your think that's funny?

Would you trust Windows 10 to put you in orbit?

Johnny wrote:
On Sun, 02 Aug 2020 20:19:50 -0400
Paul wrote:

Johnny wrote:
That's what a Linux operating system can do.
If I adopt the Linux operating system as my One True Jesus,
what size Rocket will I have to buy ? :-)

sudo apt install nerd-in-a-can
sudo ./nerd-in-a-can --type-it-for-me --fix-my-computer

It could happen. Please and thank you, One True Jesus. Amen.

By the way, I need to adjust the width of that scroll bar...
Oh... What's that ? Get the source and what ? Why
are you telling me this ??? Oh... Something about Stallman.
I see. And that's the way it has to be ? Oh...

sudo ./nerd-in-a-can --type-it-for-me --fix-my-computer
--recompile-from-source-and-fix-scrollbar

Paul

Your think that's funny?

Would you trust Windows 10 to put you in orbit?


VXWorks is a good choice. RTOS are designed for real time things.

Historically, NASA has put a good deal of effort
into auditing and reviewing code. And the "less is
more" principle applies. With an RTOS, there's a better chance
you can do a line-by-line review (because the code base
is smaller).

Sure, you can strip Linux down to its underwear, but
what exactly does that have to do with finding a
replacement for Windows 10 ?

I bet they could strip down Windows and make stuff out of
it too. Again, what would be the point ? People don't
exactly go gaga for Windows 10 IOT. Because they
keep trying to make a traditional desktop out of it
(which is what happened recently).

The control method uses triple redundancy and majority
voter logic. Presumably with a single point of failure
in the component that passes the command to the rest
of the craft. As there's no description of the
downstream handling of information.

https://samagame.com/en/this-is-the-...void-failures/

Then the unstated part is, are the three copies of "Linux"
the same ? Or do they use diversity ? Do all the processes
run RT ? Is scheduling basically disabled ? Something
has to bound the delivery time of the (triplicate)
calculations being done, and deciding when the third
unit has taken too long (timeout). Again, this is hardly
Linux, and it's merely a cheap and cheerful homemade
VXWorks.

I think a more important metric, would be how big the
source tree and object is for this project. As they'd
give you some idea whether it bears any resemblance
to Linux at all. Or more a kernel in short-pants.

They're probably doing it this way so from a
corporate perspective they can be "self-certifying".
They don't have to force VXWorks to write a document
certifying the OS is suited to driving spacecraft.
Because it's their own OS and now they own responsibility
for reviewing it, line by line.

Paul

On 2020-08-02 13:19, Johnny wrote:


That's what a Linux operating system can do.



Hi Johnny,

I am a Linux shop. And yes you'd be a fool to
trust Windows in space.

But, this is a Windows group that it suppose to
help Windows uses. Most Windows users can not
use Linux do to the lack of common applications.
They are stuck with Windows.

Please trying to keep it to helping Windows users
and not to tech evangelism.

And, yes, a jab here and there is acceptable. Lord
knows I do it.

-T

On Mon, 3 Aug 2020 02:15:24 -0700, T wrote:

On 2020-08-02 13:19, Johnny wrote:


That's what a Linux operating system can do.



Hi Johnny,

I am a Linux shop. And yes you'd be a fool to
trust Windows in space.

Do you remember that the US Navy was cajoled into setting up a ship
with Windows? Probably XP in those days. And how someone accidentally
typed something silly and the whole system crashed bring the ship to a
dead stop somewhere in the Persian Gulf or thereabouts. As I recall it
took them half an hour to get underway again.

But, this is a Windows group that it suppose to
help Windows uses. Most Windows users can not
use Linux do to the lack of common applications.
They are stuck with Windows.

Please trying to keep it to helping Windows users
and not to tech evangelism.

And, yes, a jab here and there is acceptable. Lord
knows I do it.

-T
--

Regards,

Eric Stevens

On 2020-08-03 03:14, Eric Stevens wrote:
On Mon, 3 Aug 2020 02:15:24 -0700, T wrote:

On 2020-08-02 13:19, Johnny wrote:


That's what a Linux operating system can do.



Hi Johnny,

I am a Linux shop. And yes you'd be a fool to
trust Windows in space.

Do you remember that the US Navy was cajoled into setting up a ship
with Windows? Probably XP in those days. And how someone accidentally
typed something silly and the whole system crashed bring the ship to a
dead stop somewhere in the Persian Gulf or thereabouts. As I recall it
took them half an hour to get underway again.

Did not hear that one. I did hear that skylab purged
itself of Windows

I had a video years ago that I lost of on opera house
that ran Windows to pop up the background graphics for
the The Ring of the Nibelung. I was hysterical
watching the opera stop as the giant BSOD popped up
and then you got to watch Windows booting back up
so the opera could continue. Wagner probably
turned in his grave!


But, this is a Windows group that it suppose to
help Windows uses. Most Windows users can not
use Linux do to the lack of common applications.
They are stuck with Windows.

Please trying to keep it to helping Windows users
and not to tech evangelism.

And, yes, a jab here and there is acceptable. Lord
knows I do it.

-T

Eric Stevens wrote:
On Mon, 3 Aug 2020 02:15:24 -0700, T wrote:

On 2020-08-02 13:19, Johnny wrote:

That's what a Linux operating system can do.


Hi Johnny,

I am a Linux shop. And yes you'd be a fool to
trust Windows in space.

Do you remember that the US Navy was cajoled into setting up a ship
with Windows? Probably XP in those days. And how someone accidentally
typed something silly and the whole system crashed bring the ship to a
dead stop somewhere in the Persian Gulf or thereabouts. As I recall it
took them half an hour to get underway again.

Why did the US Military do a mass transition to Windows 10 then ?

That was announced some time ago, with P.R. fanfare and so on.

(That amounts to a custom version, with fees to match. No
telemetry to Vortex and so on.)

And like any organization, there's always a few things that
don't get upgraded on the "drop-dead" date.

It's more than OS choice. In this article, they mention the
removal of touchscreens. They won't do that everywhere, just
in spots where mistakes would be "critical". Like bumping
into stuff. The Coke machine can still have a touchscreen.

https://arstechnica.com/cars/2019/08...rs-should-too/

Paul

On 2020-08-03 06:29, Paul wrote:
WhyÂ*didÂ*theÂ*USÂ*MilitaryÂ*doÂ*aÂ*massÂ*transiti onÂ*toÂ*WindowsÂ*10Â*thenÂ*?

Combat or non combat systems? There
are a lot of paper pushers in the US
Military.

T wrote:
On 2020-08-03 06:29, Paul wrote:
Why did the US Military do a mass transition to Windows 10 then ?

Combat or non combat systems? There
are a lot of paper pushers in the US
Military.


This was a happy fluffy P.R. announcement.

If the tank has an 8008, it continues to run on assembler and DIP switches.

Common-sense predicts which ones get done first.
A paper-pusher on a lease cycle is easy-pickins
for that month-end progress report. The trouble
you're having updating the Coke machine, won't be
in the report. Sooner or later, someone will
phone you up and ask for the Coke machine list.

Paul

Paul wrote:

If I adopt the Linux operating system as my One True Jesus,

You bent over backwards for that one.

On Mon, 3 Aug 2020 03:52:00 -0700, T wrote:

On 2020-08-03 03:14, Eric Stevens wrote:
On Mon, 3 Aug 2020 02:15:24 -0700, T wrote:

On 2020-08-02 13:19, Johnny wrote:


That's what a Linux operating system can do.



Hi Johnny,

I am a Linux shop. And yes you'd be a fool to
trust Windows in space.

Do you remember that the US Navy was cajoled into setting up a ship
with Windows? Probably XP in those days. And how someone accidentally
typed something silly and the whole system crashed bring the ship to a
dead stop somewhere in the Persian Gulf or thereabouts. As I recall it
took them half an hour to get underway again.

Did not hear that one.

There are various versions of what happened.

https://gcn.com/articles/1998/07/13/...the-water.aspx
or https://tinyurl.com/yc6gaenf

https://www.wired.com/1998/07/sunk-by-windows-nt/

Probably the most reliable of all
https://medium.com/dataseries/when-s...n-4e53837f75b2

I did hear that skylab purged
itself of Windows

I had a video years ago that I lost of on opera house
that ran Windows to pop up the background graphics for
the The Ring of the Nibelung. I was hysterical
watching the opera stop as the giant BSOD popped up
and then you got to watch Windows booting back up
so the opera could continue. Wagner probably
turned in his grave!


But, this is a Windows group that it suppose to
help Windows uses. Most Windows users can not
use Linux do to the lack of common applications.
They are stuck with Windows.

Please trying to keep it to helping Windows users
and not to tech evangelism.

And, yes, a jab here and there is acceptable. Lord
knows I do it.

-T
--

Regards,

Eric Stevens

On Mon, 03 Aug 2020 09:29:20 -0400, Paul
wrote:

Eric Stevens wrote:
On Mon, 3 Aug 2020 02:15:24 -0700, T wrote:

On 2020-08-02 13:19, Johnny wrote:

That's what a Linux operating system can do.


Hi Johnny,

I am a Linux shop. And yes you'd be a fool to
trust Windows in space.

Do you remember that the US Navy was cajoled into setting up a ship
with Windows? Probably XP in those days. And how someone accidentally
typed something silly and the whole system crashed bring the ship to a
dead stop somewhere in the Persian Gulf or thereabouts. As I recall it
took them half an hour to get underway again.

Why did the US Military do a mass transition to Windows 10 then ?

I don't know anything about it. It sounds as though the problem was
really in the software. What is the current attitude of US Military to
Ada? It used to be mandatory for mission-critical software.

That was announced some time ago, with P.R. fanfare and so on.

(That amounts to a custom version, with fees to match. No
telemetry to Vortex and so on.)

And like any organization, there's always a few things that
don't get upgraded on the "drop-dead" date.

It's more than OS choice. In this article, they mention the
removal of touchscreens. They won't do that everywhere, just
in spots where mistakes would be "critical". Like bumping
into stuff. The Coke machine can still have a touchscreen.

https://arstechnica.com/cars/2019/08...rs-should-too/

Paul
--

Regards,

Eric Stevens

Eric Stevens wrote:

I don't know anything about it. It sounds as though the problem was
really in the software. What is the current attitude of US Military to
Ada? It used to be mandatory for mission-critical software.

When organizations do stuff like this, it's so they have
a "response to incident" story, the ability to get
timely repairs from the manufacturer (Microsoft).

The software that runs on the OS is mission-critical.
The OS itself just has to stay tipped upright.

Paul