Request for simplified instructions for downloading and installing .tar.gz applications - Ventoy
Bret Busby
bret at busby.net
Fri Aug 12 21:22:00 UTC 2022
On 13/8/22 04:18, Ralf Mardorf via ubuntu-users wrote:
> On Fri, 2022-08-12 at 21:34 +0200, Ralf Mardorf wrote:
>> On Sat, 2022-08-13 at 01:32 +0800, Bret Busby wrote:
>>> My understanding is that, when a spinning HDD is powered down, it needs
>>> to be left off, for at least a minute, or so, before powering on again,
>>> to avoid physical damage.
>
> The comparison with an engine wasn't a joke. The heads get parked even
> without electric power by the moving plate. The reason to wait is
> probably not to avoid a pre-ignition/delayed ignition alike effect, a
> more apposite comparison, before switching from forward gear to reverse
> gear the rotational frequency should be zero ;). However, even this
> analogy isn't perfect, since there is no gear involved.
>
>> If plugging in the power jack of my external HDDs doesn't satisfy my
>> haptic expectation, I act obsessional neurotic by plugging the jack in
>> and out several times without waiting for at least a minute. The power
>> switch is unused, always in "on" position. I probably suffer from a
>> psychic damage, but my HDDs don't suffer from physical damages. It's
>> true that parking and releasing the heads wear out this part of the
>> drives, but it shouldn't make a big difference, if making a difference
>> at all, if you wait for at least a minute or not.
>>
>> Reminds me of the ignition point of a combustion engine and the
>> allegedly dead center issue. In theory, if the ignition happens at the
>> wrong time, the piston might move down in the wrong direction. When we
>> were young and tuned our small mopeds we made a lot of mistakes, but if
>> an engine started with a completely wrong "adjusted" ignition point, the
>> only thing that never happens was a piston moving down on the wrong
>> side, I suspect that anything else bad that could happen happened.
>
> While the move in the wrong direction is a joke/myth, it's true that old
> small mopeds had only a single ignition point for all speeds and it was
> possible to adjust it mechanically. I forgot that motors these days are
> controlled by microchips. Adjusting an ignition point mechanically is
> from the times when dinos and Neanderthals used tape cassettes. A tape
> cassette is a kind of USB stick alike thing to record music.
>
But the tape cassettes did not play as long as an open reel tape could
play, and, the tape in the cassettes was usually too narrow to
splice.Reel to reel tapes were simpler to use, and gave higher quality
sound.
And, the ideal for a cassette tape deck, and, only one brand was known
to get close, was to sound almost as good as a reel to reel tape.
But, all of that, came after the gramophones, that were powered by crank
handles - humans had to turn the cranks, to make the records turn, and
the records for those, were more durable than the later, plastic things
that were called records, and, gramophone needles were made of steel,
and looked like nails, not like the things that looked like pins, with
jewels stuck on the ends. We did not need electricity, to get those
record players to work.
--
Bret Busby
Armadale
West Australia
(UTC+0800)
..............
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