Very Computer

by **dkjh** » Tue, 16 Nov 1999 04:00:00

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by **charlesreynold** » Tue, 16 Nov 1999 04:00:00

> ###### GET YOUR PentiumII-366 FOR ONLY $9.99 #######;lkgh 'io609iog
> r095' f'o

--
UNIX is never having to say:
"Reboot the system and see if you still have the problem."
"I have this blue screen full of letters and numbers."
"You must reboot your computer for this installation to be complete"

by **Scott Wheele** » Wed, 17 Nov 1999 04:00:00

On Mon, 15 Nov 1999 18:43:28 -0500, Chas deTampa

>UNIX is never having to say:
>"Reboot the system and see if you still have the problem."
>"I have this blue screen full of letters and numbers."
>"You must reboot your computer for this installation to be complete"

Not done much system administration on Suns, have you?
--
(please de-mung address if replying by email)

by **Dave Alle** » Wed, 17 Nov 1999 04:00:00

Quote:> Not done much system administration on Suns, have you?

I use to love the rotating cursor on boot up, followed by the sun logo.

by **Peter Seeba** » Wed, 17 Nov 1999 04:00:00

Quote:>Not done much system administration on Suns, have you?

I have, and I never had a lot of reboot problems. Admittedly, I once had
to log out and log back in again. :)

-s
--

C/Unix wizard, Pro-commerce radical, Spam fighter. Boycott Spamazon!
Will work for interesting hardware. http://www.plethora.net/~seebs/
Visit my new ISP <URL:http://www.plethora.net/> --- More Net, Less Spam!

by **Chas deTamp** » Thu, 18 Nov 1999 04:00:00

> On Mon, 15 Nov 1999 18:43:28 -0500, Chas deTampa

> >UNIX is never having to say:

> >"Reboot the system and see if you still have the problem."
> >"I have this blue screen full of letters and numbers."
> >"You must reboot your computer for this installation to be complete"

> Not done much system administration on Suns, have you?
> --
> (please de-mung address if replying by email)

I don't know what you are talking about. I posted this warning when I
was scrolling -NEXT- through the news group and this SPAMmer had put in
a link that popped up a browser window. What are you talking about?
And yes, I have not done much admin work on Suns... so?

--
UNIX is never having to say:
"Reboot the system and see if you still have the problem."
"I have this blue screen full of letters and numbers."
"You must reboot your system to complete this installation."

by **Scott Wheele** » Fri, 19 Nov 1999 04:00:00

On Wed, 17 Nov 1999 06:23:35 -0500, Chas deTampa

>> >UNIX is never having to say:

>> >"Reboot the system and see if you still have the problem."
>> >"I have this blue screen full of letters and numbers."
>> >"You must reboot your computer for this installation to be complete"

>> Not done much system administration on Suns, have you?
>> --
>> (please de-mung address if replying by email)

>I don't know what you are talking about. I posted this warning when I
>was scrolling -NEXT- through the news group and this SPAMmer had put in
>a link that popped up a browser window. What are you talking about?
>And yes, I have not done much admin work on Suns... so?

I was commenting purely on your sig block: if you go dangling bait
like that in non-Unix groups what do you expect?

There are problems on Suns for which you have to reboot.
There are problems on Suns which give the equivalent of the Blue
Screen of Death.
Some installations on Suns require a reboot.

But then if you haven't been a sysadmin, they're Someone Else's
Problem, so in a sense I suppose your sig block is right.

Scott

--

EPOC is never having to say:

"Reboot the system and see if you still have the problem."
"I have this blue screen full of letters and numbers."
"You must reboot your computer for this installation to be complete"
"I've got a hernia from moving the screen"
--
(please de-mung address if replying by email)

by **Greg Vander Rhod** » Fri, 19 Nov 1999 04:00:00

Okay, well, I am a sysadmin, and I just have to comment!

: There are problems on Suns for which you have to reboot.
Yes, primarily hard-ware problems. If you remove a SCSI storage device
and you still have processes trying to access them, then you might have to
reboot. The point here is that you NEVER have to reboot when you
install a software package, unless it involves some kernel patches!

: There are problems on Suns which give the equivalent of the Blue
: Screen of Death.
Like what? The only thing that I think could be equivalent would be a kernel panic, which I've only encountered, again, because of faulty SCSI devices. Not because some program screwed up!

: Some installations on Suns require a reboot.
Examples? (other than kernel patches).

: But then if you haven't been a sysadmin, they're Someone Else's
: Problem, so in a sense I suppose your sig block is right.
:
: Scott
:

by **Chris Thomps** » Sat, 20 Nov 1999 04:00:00

Followups set to comp.unix.solaris only, as we seem to be talking about "Suns".

>Okay, well, I am a sysadmin, and I just have to comment!

>: There are problems on Suns for which you have to reboot.
>Yes, primarily hard-ware problems. If you remove a SCSI storage device
>and you still have processes trying to access them, then you might have to
>reboot. The point here is that you NEVER have to reboot when you
>install a software package, unless it involves some kernel patches!

>: There are problems on Suns which give the equivalent of the Blue
>: Screen of Death.
>Like what? The only thing that I think could be equivalent would be a kernel
>panic, which I've only encountered, again, because of faulty SCSI devices.
>Not because some program screwed up!

If you've really never encountered a kernel panic other than ones caused
by broken hardware, you haven't been working with Unix systems very long
or very aggressively. Believe it or not, there are panic-generating software
bugs in the Solaris kernel modules from time to time.

I'm not claiming that they occur as commonly as BSODs in WinNT, or that the
tools for investigating them when they do happen aren't better. But it serves
no honest purpose to pretend that they never happen.

Quote:>: Some installations on Suns require a reboot.
>Examples? (other than kernel patches).

Well, patches that affect daemons of such a long-running and critical sort
that in practice one might as well reboot as try to restart the daemon.
I don't normally try to avoid a reboot when the inetd executable is updated,
for example [see another thread].

I suppose the most unarguable case of this sort would be a patch that replaced
the init executable --- and yes, they do happen!

"Kernel patches" has to be taken to include anything that updates a kernel
module, of course (although occasionally one can avoid a reboot by getting the
particular module reloaded). It doesn't just mean "THE kernel (jumbo) patch" !
I make it about 15 out of 80 patches on the Solaris 2.6 recommended list
at the moment, for example.

Chris Thompson
Email: cet1 [at] cam.ac.uk

by **Peter Ben** » Sat, 20 Nov 1999 04:00:00

>[snip - software installation / need to reboot]

>I suppose the most unarguable case of this sort would be a patch that replaced
>the init executable --- and yes, they do happen!

There's no fundamental reason why this requires a reboot. All you need is
a way to ask init to exec /sbin/init and pass over any relevant internal
state.

Avoiding reboots for kernel patches is a little tricker. I've done it for
a trival patch, but not on a Sun.

Peter

by **Christopher Bruc** » Wed, 01 Dec 1999 04:00:00

> Okay, well, I am a sysadmin, and I just have to comment!

> : There are problems on Suns for which you have to reboot.
> Yes, primarily hard-ware problems. If you remove a SCSI storage device
> and you still have processes trying to access them, then you might have to
> reboot. The point here is that you NEVER have to reboot when you
> install a software package, unless it involves some kernel patches!

> : There are problems on Suns which give the equivalent of the Blue
> : Screen of Death.
> Like what? The only thing that I think could be equivalent would be a kernel panic, which I've only encountered, again, because of faulty SCSI devices. Not because some program screwed up!

Server down or intensely busy can leave you this way. Netscape won't
refresh so you can wind up with an empty frame until the problem is
cleared.

Quote:> : Some installations on Suns require a reboot.
> Examples? (other than kernel patches).

Well you have answered your own question haven't you?

Many upgrades need kernel patches especially on the HPUNIX, (it drives
me up the wall!).

Regards

Chris
--

_/ I started out with nothing
_/_/ and still have most of it left.

Very Computer

###### GET YOUR PentiumII-366 FOR ONLY $9.99 #######;lkgh 'io609iog r095' f'o