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G4 shutdown problem

Message #1 - Posted 2007/04/06 - Graeme Wall

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>

Message #2 - Posted 2007/04/06 - Rowland McDonnell

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

No ideas about what's causing it - except maybe for some sort of timeout that never `outs'. If I ever get anything odd like that, I just do maximum voodoo - fire up MainMenu, run all the maintenence and repair jobs it knows about, and then see what I can see.

Something that's been known to help iffiness that I've seen is logging out and then logging in again, and *then* rebooting.

Rowland.

Remove the animal for email address: rowland.mcdonnell@dog.physics.org Sorry - the spam got to me
http://www.mag-uk.org http://www.bmf.co.uk UK biker? Join MAG and the BMF and stop the Eurocrats banning biking

Message #3 - Posted 2007/04/07 - J. J. Lodder

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

It just happens occasionally.
Some clean-up task that doesn't exit.
Just do a brute force shutdown and restart.

Disconnecting the power isn't the way:
just hold down the power botton till it shuts down.
(about 20 seconds here)

Jan

Message #4 - Posted 2007/04/07 - Graeme Wall

In message real-address-in-sig@flur.bltigibbet (Rowland McDonnell) wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

No ideas about what's causing it - except maybe for some sort of timeout that never `outs'. If I ever get anything odd like that, I just do maximum voodoo - fire up MainMenu, run all the maintenence and repair jobs it knows about, and then see what I can see.

Trouble is it is already partway through the shutdown sequence, all the menu bars and things have gone, there's just a blue screen and the cogwheel (not pizza). Normally it shuts down about 5 seconds after that appears.

Something that's been known to help iffiness that I've seen is logging out and then logging in again, and *then* rebooting.

Was just one log in, although the machine hadn't been shut down for about 4 days.

Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>

Message #5 - Posted 2007/04/07 - Graeme Wall

In message nospam@de-ster.demon.nl (J. J. Lodder) wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

It just happens occasionally.
Some clean-up task that doesn't exit.
Just do a brute force shutdown and restart.

Disconnecting the power isn't the way:
just hold down the power botton till it shuts down.
(about 20 seconds here)

Did that and then rebooted with applejack, seems alright now <fingers crossed>. One thing I did see while applejack was runing was a warning that 'Some commands were not found in the expected place' or words to that effect.

Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>

Message #6 - Posted 2007/04/07 - Paul Russell

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

If you boot in verbose mode (Command-V) then you should also see all the shutdown messages when you, um, shut down. That might give you a clue as to where/why it's hanging.

Paul

Message #7 - Posted 2007/04/07 - Graeme Wall

In message <57p320F2e0mgpU1@mid.individual.net>
Paul Russell wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

If you boot in verbose mode (Command-V) then you should also see all the shutdown messages when you, um, shut down. That might give you a clue as to where/why it's hanging.

Thanks, I'll try that if/when it happens again. Whether I'll understand them is another question.

Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>

Message #8 - Posted 2007/04/07 - Paul Russell

Graeme Wall wrote:

In message Paul Russell <prussell@sonic.net> wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

If you boot in verbose mode (Command-V) then you should also see all the shutdown messages when you, um, shut down. That might give you a clue as to where/why it's hanging.

Thanks, I'll try that if/when it happens again. Whether I'll understand them is another question.

You just need to get into the habit of booting with Command-V held down for the time being so that next time it hangs you'll get some clues (i.e. you can't do it "after the fact"). Even if the shut down messages don't make sense you can post the gist of it here and maybe someone will have an idea of what the problem is.

Paul

P.S. Have you been really patient when this happens ? If it's something network-related that needs to time out then it could legitimately "hang" for a minute or two.

Message #9 - Posted 2007/04/07 - Graeme Wall

In message <57p7jlF2eghleU2@mid.individual.net>
Paul Russell wrote:

Graeme Wall wrote:

In message Paul Russell <prussell@sonic.net> wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

If you boot in verbose mode (Command-V) then you should also see all the shutdown messages when you, um, shut down. That might give you a clue as to where/why it's hanging.

Thanks, I'll try that if/when it happens again. Whether I'll understand them is another question.

You just need to get into the habit of booting with Command-V held down for the time being so that next time it hangs you'll get some clues (i.e. you can't do it "after the fact"). Even if the shut down messages don't make sense you can post the gist of it here and maybe someone will have an idea of what the problem is.

Right

Paul

P.S. Have you been really patient when this happens ? If it's something network-related that needs to time out then it could legitimately "hang" for a minute or two.

Possibly not patient enough. As a thought I'd switched the router off before the Mac, normally I do it the other way round.

Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>

Message #10 - Posted 2007/04/07 - Paul Russell

Graeme Wall wrote:

In message Paul Russell <prussell@sonic.net> wrote:

P.S. Have you been really patient when this happens ? If it's something network-related that needs to time out then it could legitimately "hang" for a minute or two.

Possibly not patient enough. As a thought I'd switched the router off before the Mac, normally I do it the other way round.

Ah yes - don't do that - there might be something network-related in the shutdown process that will hang for a while if the network connection has disappeared.

Paul

Message #11 - Posted 2007/04/07 - Rowland McDonnell

Graeme Wall wrote:

Rowland McDonnell wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

No ideas about what's causing it - except maybe for some sort of timeout that never `outs'. If I ever get anything odd like that, I just do maximum voodoo - fire up MainMenu, run all the maintenence and repair jobs it knows about, and then see what I can see.

Trouble is it is already partway through the shutdown sequence, all the menu bars and things have gone, there's just a blue screen and the cogwheel (not pizza). Normally it shuts down about 5 seconds after that appears.

Well, yeah, so the thing to do is when you've got the beastie alive and responding again, run the maintenance jobs and all that, yeah?

Something that's been known to help iffiness that I've seen is logging out and then logging in again, and *then* rebooting.

Was just one log in, although the machine hadn't been shut down for about 4 days.

Yeah, so try the voodoo I suggested. You've got something wrong with the Mac. Doing things to it will fix it unless it's a hardware fault. The things I've suggested are of the `non-invasive' sort. Give it a go - it can't hurt.

Rowland.

Remove the animal for email address: rowland.mcdonnell@dog.physics.org Sorry - the spam got to me
http://www.mag-uk.org http://www.bmf.co.uk UK biker? Join MAG and the BMF and stop the Eurocrats banning biking

Message #12 - Posted 2007/04/07 - Graeme Wall

In message real-address-in-sig@flur.bltigibbet (Rowland McDonnell) wrote:

Graeme Wall wrote:

Rowland McDonnell wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

No ideas about what's causing it - except maybe for some sort of timeout that never `outs'. If I ever get anything odd like that, I just do maximum voodoo - fire up MainMenu, run all the maintenence and repair jobs it knows about, and then see what I can see.

Trouble is it is already partway through the shutdown sequence, all the menu bars and things have gone, there's just a blue screen and the cogwheel (not pizza). Normally it shuts down about 5 seconds after that appears.

Well, yeah, so the thing to do is when you've got the beastie alive and responding again, run the maintenance jobs and all that, yeah?

Something that's been known to help iffiness that I've seen is logging out and then logging in again, and *then* rebooting.

Was just one log in, although the machine hadn't been shut down for about 4 days.

Yeah, so try the voodoo I suggested. You've got something wrong with the Mac. Doing things to it will fix it unless it's a hardware fault. The things I've suggested are of the `non-invasive' sort. Give it a go - it can't hurt.

I've run Applejack, MacJanitor and Disc Utility and it all seems to work just fine now after a reboot. So fingers crossed! Many thanks for all the advice.

Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>

Message #13 - Posted 2007/04/08 - J. J. Lodder

Graeme Wall wrote:

In message Paul Russell <prussell@sonic.net> wrote:

Graeme Wall wrote:

In message Paul Russell <prussell@sonic.net> wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

If you boot in verbose mode (Command-V) then you should also see all the shutdown messages when you, um, shut down. That might give you a clue as to where/why it's hanging.

Thanks, I'll try that if/when it happens again. Whether I'll understand them is another question.

You just need to get into the habit of booting with Command-V held down for the time being so that next time it hangs you'll get some clues (i.e. you can't do it "after the fact"). Even if the shut down messages don't make sense you can post the gist of it here and maybe someone will have an idea of what the problem is.

Right

Paul

P.S. Have you been really patient when this happens ? If it's something network-related that needs to time out then it could legitimately "hang" for a minute or two.

Possibly not patient enough. As a thought I'd switched the router off before the Mac, normally I do it the other way round.

Why switch off routers at all?

Jan

Message #14 - Posted 2007/04/08 - Graeme Wall

In message nospam@de-ster.demon.nl (J. J. Lodder) wrote:

Graeme Wall wrote:

In message Paul Russell <prussell@sonic.net> wrote:

Graeme Wall wrote:

In message Paul Russell <prussell@sonic.net> wrote:

Graeme Wall wrote:

Trying to shut down my G4 MDD and it is just sitting there with the cogwheel going round and round. It's happened a couple of times before for no apparent reason. Any clues about what causes it and how to get out of it without a brute force shutdown by disconnecting the power?

If you boot in verbose mode (Command-V) then you should also see all the shutdown messages when you, um, shut down. That might give you a clue as to where/why it's hanging.

Thanks, I'll try that if/when it happens again. Whether I'll understand them is another question.

You just need to get into the habit of booting with Command-V held down for the time being so that next time it hangs you'll get some clues (i.e. you can't do it "after the fact"). Even if the shut down messages don't make sense you can post the gist of it here and maybe someone will have an idea of what the problem is.

Right

Paul

P.S. Have you been really patient when this happens ? If it's something network-related that needs to time out then it could legitimately "hang" for a minute or two.

Possibly not patient enough. As a thought I'd switched the router off before the Mac, normally I do it the other way round.

Why switch off routers at all?

Because

Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>

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