iOS 10.3’s longer than usual installation likely due to switch to new Apple File System

“Early adopters of the full iOS 10.3 release are seeing lengthy install processes, with multiple device reboots —probably as a result of the shift to Apple’s new APFS,” Mike Wuerthele reports for AppleInsider.

“After quick downloads of 600 megabytes and above, early installs witnessed by AppleInsider are seeing install times greater than 20 minutes on several iPhone 7 and iPhone 7 Plus units, with a 12.9-inch iPad Pro taking 27 minutes, and an iPad Air 2 taking about 48 minutes,” Wuerthele reports. “Devices that aren’t quite as full with content take appear to be taking a bit less than ones with nearly full storage, but only a few minutes get shaved off.”

“iOS 10.3,” Wuerthele reports, “migrates users to the new Apple File System optimized for flash media.”

Read more in the full article here.

MacDailyNews Take: Other than a bit longer installation time, anyone having any problems with iOS 10.3? We’ve got double-digit iOS devices updated to 10.3 now and we’ve seen zero issues after this momentous upgrade!

Apple releases iOS 10.3, watchOS 3.2, and tvOS 10.2 – March 27, 2017
You must back up your iPhone and iPad before upgrading to Apple’s iOS 10.3, due soon – March 10, 2017
Apple’s iOS 10.3: A very, very important upgrade – January 25, 2017
APFS: What Apple’s new Apple File System means to you – June 24, 2016
APFS: New Apple File System promises more speed, flexibility, reliability – June 17, 2016
The feds’ll hate this: Apple’s new APFS file system ‘engineered with encryption as a primary feature’ – June 14, 2016
Buh-bye HFS+, hello APFS (Apple File System) for macOS! – June 14, 2016
Apple can do better than Sun’s ZFS – October 26, 2009
Apple discontinues ZFS project, turns attention to own next-gen file system – October 24, 2009
Apple’s Mac OS X Snow Leopard Server’s ZFS goes MIA – June 9, 2009


  1. I’ve been on 10.3 for months now, and never even noticed the longer installation time. I’m on their public beta. I’ve had no issues aside from a bug I reported, and they emailed me confirming it was fixed in a beta patch. All my contact images disappeared temporarily and were restored with their patch. Nobody should have that issue anymore.

  2. Having nearly 2GB free was not enough for the update to be installed over-the-air on my iPad Air. So I used iTunes with a charging cable, and the installation went smoothly.

Reader Feedback

This site uses Akismet to reduce spam. Learn how your comment data is processed.