This article explains why you need so much space to download the update, but 
don't need the space permanently.

http://m.imore.com/out-space-install-ios-8-use-itunes-instead

Sent from my iPad

> On 20 Sep 2014, at 3:08 pm, Susan Hastings <susanhasti...@mac.com> wrote:
> 
> http://gizmodo.com/how-to-download-ios-8-without-deleting-all-your-stuff-1635981856
> 
> 
> This article confirms my experience that you only need a lot of space for the 
> download Over wireless,  once you have it installed it really only takes a 
> small extra amount of space.
> Sent from my iPad
> 
>> On 20 Sep 2014, at 3:02 pm, Susan Hastings <susanhasti...@mac.com> wrote:
>> 
>> There wasn't enough free space to download the updates on either my husbands 
>> ipad or the little 8gig iPhone 4s. However, they had no difficulty 
>> installing after connecting with iTunes,  though I didn't check the n how 
>> much extra space they took up. Seems odd that it worked for me twice.
>> 
>> Sent from my iPad
>> 
>>> On 20 Sep 2014, at 2:44 pm, Ronda Brown <ro...@mac.com> wrote:
>>> 
>>> Hi Susan,
>>> 
>>> Yes, I understand that the download is a 1.63GB size... So Laura can 
>>> downloaded in iTunes without any issue.
>>> BUT, Laura has said she does not have enough room to actually "Install" the 
>>> update once it is downloaded in Itunes.
>>> 
>>> I had 17.30GBs Free before installing iOS 8 and after the installation 
>>> completed I had 16.0GBs Free. So Laura needs to have at least a few GBs of 
>>> Available space on her iPad to be able to Install and then actually be able 
>>> to Run/Use iOS 8. 
>>> 
>>> Similar to a computer... More Free space the OS performers better.
>>> 
>>> Sent from Ronni's iPad4
>>> 
>>> 
>>>> On 20 Sep 2014, at 2:18 pm, Susan Hastings <susanhasti...@mac.com> wrote:
>>>> 
>>>> Hi Ronni, the room is needed for the download, not the update itself. 
>>>> Which is why I did my husbands iPad and iPhone 4S via iTunes. The 4S is 
>>>> only 8 gig. So Lara should be able to update using iTunes. Cheers, Susan
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>>> On 20 Sep 2014, at 2:15 pm, Ronda Brown <ro...@mac.com> wrote:
>>>>> 
>>>>> But Laura, you don't have the room on your iPad to install iOS 8... 
>>>>> So what is the point in downloading the update if you can't install it?
>>>>> 
>>>>> The iOS 8 update won't install until you free up the necessary space on 
>>>>> your iPad so it can be installed.
>>>>> 
>>>>> Cheers,
>>>>> Ronni
>>>>> 
>>>>> Sent from Ronni's iPad4
>>>>> 
>>>>> 
>>>>>> On 20 Sep 2014, at 2:02 pm, Laura Webb <el...@iinet.net.au> wrote:
>>>>>> 
>>>>>> Thanks Susan, that's about the time span I would have expected. I had 
>>>>>> not considered "the rush" aspect so will keep trying.
>>>>>> 
>>>>>> Regards
>>>>>> Laura
>>>>>> 
>>>>>> Sent from my iPad
>>>>>> 
>>>>>> 
>>>>>>> On 20 Sep 2014, at 1:39 pm, Susan Hastings <susanhasti...@mac.com> 
>>>>>>> wrote:
>>>>>>> 
>>>>>>> Hi Laura, it took less than half an hour for the iOS 8 update to 
>>>>>>> download for my husband’s iPad. I think it may be worth trying again in 
>>>>>>> a day or so, which will be well after the rush.
>>>>>>> 
>>>>>>> 
>>>>>>>> On 20 Sep 2014, at 1:24 pm, Laura Webb <el...@iinet.net.au> wrote:
>>>>>>>> 
>>>>>>>> Hi Ronni
>>>>>>>> 
>>>>>>>> I have 32GB and yes I know I should have gone for 64GB. If there is a 
>>>>>>>> next time for me that's what I'll do. Whilst the 5.5GB requirement 
>>>>>>>> might be a friendly reminder from Apple it is still, for now, 
>>>>>>>> preventing me from easily upgrading to iOS8. Not sure the problem 
>>>>>>>> warrants buying a portable storage drive.
>>>>>>>> 
>>>>>>>> Thanks again.
>>>>>>>> 
>>>>>>>> Kind regards
>>>>>>>> Laura 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Sent from my iPad
>>>>>>>> 
>>>>>>>> 
>>>>>>>>> On 20 Sep 2014, at 12:16 pm, Ronda Brown <ro...@mac.com> wrote:
>>>>>>>>> 
>>>>>>>>> Hi Laura,
>>>>>>>>> 
>>>>>>>>> Do you have a 64GB iPad?
>>>>>>>>> If anything, the 5.7 GB requirement to update to iOS 8 is a friendly 
>>>>>>>>> reminder from Apple that you may need to splurge for the 64GB next 
>>>>>>>>> time.
>>>>>>>>> 
>>>>>>>>> Perhaps you need to take a lot of 'stuff' off your iPad and onto a 
>>>>>>>>> Portable Wireless Storage LaCie FUEL Drive?
>>>>>>>>> 
>>>>>>>>> Cheers,
>>>>>>>>> Ronni
>>>>>>>>> Sent from Ronni's iPad4
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>>> On 20 Sep 2014, at 11:43 am, Laura Webb <el...@iinet.net.au> wrote:
>>>>>>>>>> 
>>>>>>>>>> Hi Ronni
>>>>>>>>>> 
>>>>>>>>>> Thanks for your advice. Not sure I am meant to have this upgrade!! I 
>>>>>>>>>> am aware of the size but there is a requirement for 5.8GB to install 
>>>>>>>>>> the update. I have 3.4GB remaining. Yes I suppose I can delete items 
>>>>>>>>>> to gain more space but not sure I want to do that.
>>>>>>>>>> 
>>>>>>>>>> Last evening I connected iPad to MBP, chose “download and update” 
>>>>>>>>>> from the two options available i.e. download only or download and 
>>>>>>>>>> update. It started downloading then advised there were 15 hours 
>>>>>>>>>> remaining. Surely it is not meant to take that long. I cancelled and 
>>>>>>>>>> tried again this morning with the same result, so left it alone 
>>>>>>>>>> thinking well if it takes that long, so be it. Came back several 
>>>>>>>>>> hours later to find there was a message “an error has occurred”.  I 
>>>>>>>>>> think it is all too hard.
>>>>>>>>>> 
>>>>>>>>>> Kind regards
>>>>>>>>>> Laura
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>>> On 19 Sep 2014, at 4:40 pm, Ronni Brown <ro...@mac.com> wrote:
>>>>>>>>>>> 
>>>>>>>>>>> Hi Laura & Susan,
>>>>>>>>>>> 
>>>>>>>>>>> Susan, Laura mentioned she has insufficient free space on her iPad 
>>>>>>>>>>> to download over the air and install.
>>>>>>>>>>>> I have insufficient space on my iPad to download the upgrade
>>>>>>>>>>> 
>>>>>>>>>>> Laura, the iOS 8 download size in 1.63GB
>>>>>>>>>>> 
>>>>>>>>>>> I suggest you connect your iPad to your Mac.
>>>>>>>>>>> I also then did a 'backup to Computer' first.
>>>>>>>>>>> 
>>>>>>>>>>> Sync your iPad to the computer and download iOS 8 directly from 
>>>>>>>>>>> there. 
>>>>>>>>>>> This won't take up any space on your device, and you can manually 
>>>>>>>>>>> transfer the new software back to your device. 
>>>>>>>>>>> Updating via your Mac is more reliable way to upgrade, versus OTA 
>>>>>>>>>>> (over-the-air), which is performed directly on the device. 
>>>>>>>>>>> 
>>>>>>>>>>> If you're taking this alternate route, be sure to select "check for 
>>>>>>>>>>> update" when the prompt pops up on iTunes — not "restore iPhone."
>>>>>>>>>>> The latter option will indeed wipe all content from your device.
>>>>>>>>>>> 
>>>>>>>>>>> If you have read my previous posts to the list: iOS 8 Users: Do Not 
>>>>>>>>>>> Upgrade to iCloud Drive
>>>>>>>>>>> Apple hasn
>>>>> -- The WA Macintosh User Group Mailing List --
>>>>> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
>>>>> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
>>>>> Settings & Unsubscribe - 
>>>>> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
>>>> -- The WA Macintosh User Group Mailing List --
>>>> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
>>>> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
>>>> Settings & Unsubscribe - 
>>>> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
>>> -- The WA Macintosh User Group Mailing List --
>>> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
>>> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
>>> Settings & Unsubscribe - 
>>> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
>> -- The WA Macintosh User Group Mailing List --
>> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
>> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
>> Settings & Unsubscribe - 
>> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
> -- The WA Macintosh User Group Mailing List --
> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
> Settings & Unsubscribe - 
> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
-- The WA Macintosh User Group Mailing List --
Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>