Many thanks for that, as usual, full and succinct explanation!
Severin
> On 28 Oct 2015, at 1:22 pm, Ronni Brown <[email protected]> wrote:
>
> Hi Severin & Peter,
>
> At first approximation they are the same, but the mechanism of the update is
> different since one can be a delta and self-applied update and the other
> installs a complete build rather than patching the OS.
>
> The OTA (Over The Air) update implies the OS and device is working properly,
> so iTunes is a good bet if you really want to ensure the update goes well or
> want to put the device into Recovery mode to ensure the new OS and only the
> new OS is written.
> Obviously, if the device is having problems, you should opt for iTunes to
> control the update rather than hoping the device installs the patch properly.
>
> iTunes downloads a several hundred megabyte IPSW file that can be used to do
> a more complete “Restore" if needed.
> It is the “Restore" that will reformat the filesystem etc.
>
> Assuming your device is working well, you can safely update OTA (plugged into
> power) and in many cases - the download is a delta update that is smaller
> than the entire image if you are doing an update that isn't a major version
> (8.0 or 9.0)
>
> Using iTunes also gives you a chance to transfer purchases and reduce the
> number of apps you will have to re-download after a major update. Again, not
> an issue on incremental updates like 9.0 update from 9.0.1.
>
> Cheers,
> Ronni
>
> 13-inch MacBook Air (April 2014)
> 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz
> 8GB 1600MHz LPDDR3 SDRAM
> 512GB PCIe-based Flash Storage
>
> OS X El Capitan 10.11
>
>> On 28 Oct 2015, at 12:05 PM, [email protected]
>> <mailto:[email protected]> wrote:
>>
>> Yes, I have noted the same phenomenon and have wondered why. Now, I wait for
>> Ronni's "all clear" before doing the download and always use the WiFI
>> option. There is no apparent downside to doing it this way - always.
>>
>> Pete.
>>
>>
>>
>> ----- Original Message -----
>> From:
>> [email protected] <mailto:[email protected]>
>> To:
>> "WAMUG List" <[email protected] <mailto:[email protected]>>
>> Cc:
>>
>> Sent:
>> Wed, 28 Oct 2015 11:58:10 +0800
>> Subject:
>> iOS9 downloads
>>
>>
>> Why are downloads via iTunes on iOS devices so unbelievably slow? I
>> usually do them wirelessly but today by some quirk I decided to do my iPad
>> mini while plugged in to iTunes. After what seemed an interminable wait I
>> interrogated the download viewer and was told there were 12 hours still to
>> go. I unplugged and went to wifi and all completed in the normal sort of
>> time.
>> Why is this?
>> Severin Crisp
>> ____________________________________________________
>>
>> Assoc Prof R Severin Crisp, FAIP, FIP, CPhys
>> 15 Thomas St, Mount Clarence, Albany, 6330, Western Australia
>> ph (08) 9842 1950 ( Int'l +61 8 9842 1950)
>> mail to: [email protected]
>> <mailto:[email protected]>
>> ____________________________________________________
>
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____________________________________________________
Assoc Prof R Severin Crisp, FAIP, FIP, CPhys
15 Thomas St, Mount Clarence, Albany, 6330, Western Australia
ph (08) 9842 1950 ( Int'l +61 8 9842 1950)
mail to: [email protected]
____________________________________________________
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