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Offline AmidufferTopic starter

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Question about shutting down
« on: February 20, 2009, 07:34:17 PM »
Just having had another fun session with this Ubuntu PC after the a fuse flipped and the power cut off, and having to run fsdsk and messing with fixing it after the "unclean" shutoff, and of course having to do the same thing with Windows whenever it happens, it makes using AmigaOS that much nicer, just to flip a switch and shut it off without going through a darn shutoff procedure and the aggravation of checkdisk if you don't. Although, startups and shutdowns are a heck of a lot faster now after I tweeked it and eliminated the worthless eye candy and unneeded programs.

Just curious. Does AmigaOS 4 or 4.1 still have the same ability to just "shut off"?

What exactly is it that allows AmigaOS to just shut off without the problems of the other operating systems. Don't be too technical please.  :-D
Amiga 3000D UP and running! Hear that clicking. 8)
Amiga 3000D & 4000D in storage sadly.
 

Offline stevieu

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Re: Question about shutting down
« Reply #1 on: February 20, 2009, 07:50:05 PM »
I'll just post the very short reply (others can add)... ;-)

Yes. One can still wait for all HDD activity to finish and simply switch off to 'shut down', with OS4.x :-)

Steve

Offline murple

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Re: Question about shutting down
« Reply #2 on: February 20, 2009, 07:56:38 PM »
If you've got a hard drive and it's being written to, just turning off the computer can damage your files, even on an Amiga. Usually on an old Amiga there aren't a bunch of background processes running which are writing data, so you don't need to go through a formal shutdown to tell all those processes to stop writing and die. If you do though, or if you power off while some program is writing stuff to disk, you're going to have some garbage on your drive.
 

Offline Matt_H

Re: Question about shutting down
« Reply #3 on: February 20, 2009, 07:59:52 PM »
Quote
Just curious. Does AmigaOS 4 or 4.1 still have the same ability to just "shut off"?

Yes.

Quote
What exactly is it that allows AmigaOS to just shut off without the problems of the other operating systems. Don't be too technical please. :-D

A not-idiotic design. :-) I always felt that icon and window snapshotting and the ENV:/ENVARC: separation had a lot to do with it. With Windows (and sometimes Linux), I find it impossible to force settings to be saved - it's almost as if Windows *moves* settings from disk to RAM on bootup, rather than copying them, and only a clean shutdown will re-commit them to disk.
 

Offline yakumo9275

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Re: Question about shutting down
« Reply #4 on: February 20, 2009, 10:00:16 PM »
mm fsck.. guess your not running xfs or jfs  :lol: a proper journaling file system is a must...

how can the amiga do it? it can and cant. its reduced mostly by things like immediate writes to disk rather than cacheing writes in memory.

simplistic data structures for filesystem

no bells and whistles.

everything has tradeoffs of course, however you want to look at it.




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Offline JimmySage

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Re: Question about shutting down
« Reply #5 on: February 20, 2009, 10:36:10 PM »
I think it's more of a case that windows is constantly writing to the disk and those processes need to stop cleanly or you'll get corruption. If it's not the swap file, it's the disk cache or the registry performance counters. Just when you think the disk has gone quiet, the indexing service kicks in!

The amiga is very "quiet" by comparison and generally only writes to the disk when you tell it to. I do remember using a disk cache app years ago where you did need to flush the buffers or something similar before switching the machine off.


 

Offline AmidufferTopic starter

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Re: Question about shutting down
« Reply #6 on: February 20, 2009, 11:20:28 PM »
I know you don't shut it off while its writing. A couple of mangled systems have been a painful lesson in that issue. :getmad:

Quote

yakumo9275 wrote:
mm fsck.. guess your not running xfs or jfs  :lol: a proper journaling file system is a must...

simplistic data structures for filesystem

no bells and whistles.

everything has tradeoffs of course, however you want to look at it.


After a long time, I'm finally getting comfortable with Win (relatively) and can at least change registry files and other process' with little fear. I've only installed Ubuntu a few months ago, and its still a mystery. Not sure about xfs or jfs, I'm just using what came with the install CD.
Amiga 3000D UP and running! Hear that clicking. 8)
Amiga 3000D & 4000D in storage sadly.
 

Offline Methuselas

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Re: Question about shutting down
« Reply #7 on: February 21, 2009, 06:29:25 AM »
I've always wanted a shutdown command.....


.......for my mouth......


I'm sure many of my exes would agree with this, as well.  :lol:
\'Using no way as way. Having no limitation as limitation.\' - Bruce Lee

\'No, sorry. I don\'t get my tits out. They\'re not actually real, you know? Just two halves of a grapefruit...\' - Miki Berenyi

\'Evil will always triumph because good is dumb.\' - Dark Helmet :roflmao:

\'And for future reference, it might be polite to ask someone if you can  quote them in your signature, rather than just citing them to make a  sales pitch.\' - Karlos. :rtf