![]() You should see a pop up message showing you how much space is needed before you can attempt the upgrade again. If the installer finds that you do not have enough free space for the upgrade, it will stop and not let you continue. Quick Summary – When you start the macOS Big Sur upgrade, the installer should first check to make sure your Mac has enough free space available. UPDATED 10/07/21 – Latest Updates!!! – For the latest information be sure to check the UPDATES section below. If FV2 encryption is enabled, you will be locked out of your data! The upgrade will start, then run out of space and fail. The macOS Big Sur upgrade is not checking to make sure enough free HD space is available. Macintosh Posted on OctoDecemCategories #MacAdmins, 10.13 High Sierra, 10.14 Mojave, 10.15 Catalina, 11.0 Big Sur, Apple Enterprise Support, macOS Installer, macOS Recovery, macOS Upgrade 23 Comments on macOS Upgrade to Big Sur Failed! Stuck Progress Bar fix & Prevention! Big Sur Upgrade not Enough Free Space = Serious Issue & Possible Data Loss! UPDATED What if you booted your failed Mac into safe mode after having the issue?Ĭontinue reading “macOS Upgrade to Big Sur Failed! Stuck Progress Bar fix & Prevention!” Author Mr.How do I clear them out before the upgrade? How can I check how many mdworker files my system has before an upgrade. ![]() The macOS stuck progress bar issue has many different situations. This would allow the upgrad to finish properly. If you build a fresh system the file counts for spotlight will be very low. This is the reason why the problem could never be reproduced. In some situations users have reported 500,000 – 2,000,000 files!!! Have more than 20,000 files your upgrade could fail. If folders in multiple directories in the location below /private/var/folders/*/*/C/ If you are upgrading from macOS High Sierra, Mojave, or Catalina to Big Sur your upgrade could fail if it matches a very particular condition. I’ll start with a quick summary of the macOS stuck progress bar situation. UPDATE! This issue is fixed in both the Monterey 12.1 and Big Sur 11.6.2 Full installer. In certain situations, the upgrade will fail and then get stuck with a neverending progress bar. MacOS Big Sur currently has an upgrade issue. MacOS Mojave or Catalina to Big Sur Upgrade Progress Bar Stuck Fix.
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