Revised macOS Big Sur 11.2.1 Update Properly Checks Free Available Space to Prevent Installation Errors

When upgrading to macOS Big Sur, there was an error that would cause issues if there wasn't enough storage space available. Unfortunately, the update was not checking if there was enough free space before the installation started, which could lead to data loss.

First Look Big Sur Feature2
The free space issue has been addressed in a revised macOS Big Sur 11.2.1 update that was released this morning. According to Mr. Macintosh, the new update checks to make sure there is enough available storage space before installation starts.


If you don't have enough free space, the installer will say "There is not enough free space on the selected volume to upgrade the OS," and it will let you know how much additional space is required.

The new update that was released today is available only if you had not previously installed macOS Big Sur 11.2.1.

Related Forum: macOS Big Sur

Popular Stories

New Things Your iPhone Can Do in iOS 18

18 New Things Your iPhone Can Do in iOS 18.2

Wednesday November 27, 2024 5:05 am PST by
Apple is set to release iOS 18.2 in early December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. There are a handful of new non-AI related feature controls incoming as...
iphone 16 pro models 1

12 Reasons to Wait for Next Year's iPhone 17

Friday November 29, 2024 5:17 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we sometimes get rumored feature leaks so far ahead of launch. The iPhone 17 series is no different – already we have some idea of what to expect from Apple's 2025 smartphone lineup. If you plan to skip...
Whatsapp Feature

WhatsApp to Drop Support for These iPhones Starting May 2025

Monday December 2, 2024 2:57 am PST by
WhatsApp is set to end support for iOS versions older than iOS 15.1 from May next year, removing the chat platform's compatibility with several iPhone models in the process. From May 5, 2025, WhatsApp will no longer be compatible with iPhone 5s, iPhone 6, and iPhone 6 Plus models. Users with those devices won't be able to access the encrypted chat service after the specified date unless they ...
iPhone 17 Pro Dual Tone Rectangle Feature 1

iPhone 17 Pro Already Rumored to Have These 8 New Features

Wednesday November 27, 2024 12:19 pm PST by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch for 10 more months, there are already plenty of rumors about the devices. An imaginative iPhone 17 Pro concept based on rumors Below, we recap key changes rumored for the iPhone 17 Pro models so far: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro ...
Apple AI Command Center Concept Mock 3

Apple Expected to Launch This All-New Device Next Year

Wednesday November 27, 2024 1:05 pm PST by
Apple is expected to kick off 2025 by launching an all-new smart home hub, also referred to as a "command center," as early as March. The hub is expected to feature around a six-inch display that can be attached to a tabletop base with a speaker, or mounted on a wall. The device is said to run a new "homeOS" operating system with a customizable widget-focused home screen, and it is expected...
maxresdefault

The MacRumors Show: iPhone 17 Designs Revealed!

Friday November 29, 2024 9:34 am PST by
On this week's episode of The MacRumors Show, we discuss the recently leaked design of the iPhone 17 "Air" and iPhone 17 Pro. Subscribe to The MacRumors Show YouTube channel for more videos Earlier this week, a report from The Information's Wayne Ma revealed that the iPhone 17 Air will have a thickness of between 5mm and 6mm, which would make it the thinnest iPhone ever. In comparison, iPhone ...
airpods pro 2 gradient

AirPods Pro 3 Expected Next Year: Here's What We Know

Thursday November 28, 2024 3:30 am PST by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch sometime in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as...
Cyber Monday Deals Feature 2022

Apple Cyber Week Deals Available Now: AirPods, iPads, and More

Sunday December 1, 2024 7:52 am PST by
Although Black Friday has ended, Cyber Week is here and you can find great deals on numerous Apple devices right now. This includes big savings on AirPods, Apple Watch, MacBook Air, iPad, and more. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Specifically,...

Top Rated Comments

HiRez Avatar
50 months ago
Wow, this is a pretty basic thing to miss, with potentially terrible consequences. I mean checking free space before you install, wouldn't that be on the standard checklist since forever?
Score: 36 Votes (Like | Disagree)
NewUsername Avatar
50 months ago
Especially given how many Mac users still have a 128GB SSD.
Score: 25 Votes (Like | Disagree)
ouimetnick Avatar
50 months ago
Why does an OS take up 35GB of space? I remember back when Snow Leopard cam out Apple bragged that it took less space than it's predecessor. Try trimming some of the bloat out of the next macOS release.
Score: 23 Votes (Like | Disagree)
jz0309 Avatar
50 months ago
Apple SW QA still needs way more attention, way too many updates across ...
Score: 21 Votes (Like | Disagree)
Matthew.H Avatar
50 months ago

Choosing storage space during purchasing is the responsibility of the buyer, not the seller. When people cheap out on storage space they are entering at their own risk.
It doesn't help that Apple has frankly been stingy on storage for years. They've only just recently made 256GB the minimum when it should have been the standard base at least 5 years ago.
Score: 20 Votes (Like | Disagree)
now i see it Avatar
50 months ago
Newbie mistake. What's going on over there?
Score: 17 Votes (Like | Disagree)