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GEN8 IPAD iOS 18 to 26.x, 32GB devices. OTA Update not possible due to storage

  • October 2, 2026
  • 3 replies
  • 36 views

KalleGer
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Dear Community,

i stumble upon the Topic:
 

 

I am currently facing the notorious "Peak Storage Overhead" / Storage Bottleneck issue while trying to update our fleet of 700 iPads (8th Generation, 32GB models). Even after a factory wipe, the Over-the-Air (OTA) update fails due to the system data footprint taking up too much space on these 32GB devices.
I stumbled upon the topic where @cr4sh0ver mentioned a solution:
"We changed our 'PreStage Enrollment' to require the latest OS before enrollment is processed. iPads go through normal enrollment process after the iPad has been updated..."
Since we are running Jamf School (not Jamf Pro), I am struggling to find this exact setting. I know that we don't have "PreStage Enrollments" by that name, but rather Automated Device Enrollment Profiles (DEP) and Blueprints.
Could anyone give me a quick, detailed step-by-step walkthrough for Jamf School on how to replicate this fix for a single test device?
  1. Where exactly in the Jamf School DEP profile (or elsewhere) do I enforce the minimum OS version before the enrollment completes?
  2. What is the exact workflow at the iPad screen after wiping it to trigger this behavior?
I would be thankful to eternity if someone could shed some light on this!
Managing 700 of these 32GB bad boys is becoming a real nightmare.
Best regards!

3 replies

dletkeman
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  • Jamf Heroes
  • October 2, 2026

We are in a similar boat as you.  Jamf School with hundreds of iPads.  Ideally something that works with Return to Service would be the best solution.  I’m not sure of an answer offhand.  I’ve been too busy with other issues.


mvu
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  • Jamf Heroes
  • October 2, 2026

Didn’t know Jamf School didn’t have the Enforce Minimum option. We use it for our fleet in Jamf Pro, and it’s helpful.

We have 64 GB devices. Thought that was tough!

Since you don’t have the minimum option, is Apple Configurator the answer for a wipe and update?
 


dletkeman
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  • Jamf Heroes
  • October 2, 2026

Since you don’t have the minimum option, is Apple Configurator the answer for a wipe and update?
 

This is currently what I’ve been doing.  Or use 3uTools on a PC.  Don’t necessarily have to wipe to update.  Update keeping user data also works.