HI Neil, yes I have been very patient and as you say sometimes the time calculator is way out and so I gave it ~4 hours (from the 28 minutes remaining point) before I decided to intervene. Using the Apple Support instructions I used the MacOS Recovery method Option/Command/R on start up. This was chosen to get the most up to date OS that the unit could accomodate - 10.13.5. It is now all successfully updated and in the end only took ~30-40 minutes.
I am now migrating all of Tims data from his SATA connected HDD via USB. I expected it will run all night given ~350GB approx to migrate. Fingers crossed it is all ok in the morning. I am glad the power is back on and hopefully not much collateral damage caused. Regards Pete > On 5 Jun 2018, at 7:39 pm, Neil Houghton <[email protected]> wrote: > > Hi Pete, > > Whilst it is not unknown for these things to get “hung up” I have also found > Apple “minutes’ in their progress bars to be VERY inaccurate/unreliable – it > seems that “minutes” sometimes do take “hours”. > > If it were me I would give it the benefit of the doubt for a few more hours…… > > > At least you have power – ours was out for over 10 hours – restored a few > minutes ago, fingers crossed ;o) > > > Cheers > > > > Neil > -- > Neil R. Houghton > Albany, Western Australia > Tel: +61 8 9841 6063 > Email: [email protected] > > From: <[email protected]> on behalf of Peter > Crisp <[email protected]> > Reply-To: WAMUG <[email protected]> > Date: Tuesday, 05 June 2018 at 17:28 > To: WAMUG <[email protected]> > Subject: Upgrade MBA from Yosemite to High Sierra > > I received the replacement MBA for Tim’s previously failed MBP. It is a 2014 > - 512GB/8GB/i7 MBA. It was supplied ‘clean’ with an Admin account and running > Yosemite. I reviewed Ronni’s previously provided upgrade to HS document and > the requirements in there are relevant for where an existing machine with > data is being upgraded. I connected it to the WiFi network and also plugged > in Thunderbolt to Ethernet for fast reliable download for the update. I went > to the App Store and selected the Upgrade and then Install option. After a > short while during the Install phase, the progress bar reached ~60% and > screen said “Installing, 28 minutes remaining”. That was about 3 hours ago. > For the moment I am leaving it alone to itself in case it self resolves but > it appears stuck. Some searching over the Apple support forum indicates this > is not a unique experience. Many users have had this and have had to > interrupt and then boot in Recovery mode but many not successful in > progressing. Having gone through the experience with Tim’s MBP failing, I am > a little shy to do anything just now. Has anyone had this and a known ‘fix’ > for this glitch? > > My experience with HS has been without fault on my MBP Retina so I am > surprised by this otherwise clean record in my experience. > > Regards > > > Pete > -- The WA Macintosh User Group Mailing List -- Archives - Guidelines - > Settings & Unsubscribe - > -- 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>
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