Apple Warns macOS Catalina Users About Installing macOS 12.3 Beta on Volume With FileVault Enabled

Apple today updated its macOS 12.3 beta release notes to warn macOS Catalina users about a potential boot loop issue when installing the macOS 12.3 or macOS 11.6.4 betas on a separate APFS volume with FileVault enabled.

macOS Monterey on MBP Feature
"If your Mac currently has macOS Catalina installed, installing macOS Monterey 12.3 beta or macOS Big Sur 11.6.4 beta on a volume with FileVault enabled might cause a boot loop when attempting to log back into the previous volume," says Apple.

On a Mac running macOS High Sierra or later, it is possible to install macOS on a separate APFS volume and then switch between versions of macOS, including betas, as if each were on a separate disk. Apple has a support document with more details.

Apple seeded the first beta of macOS 12.3 earlier this week, with a key new feature being Universal Control. macOS 12.3 also features new emoji, deprecates kernel extensions used by Dropbox and OneDrive, removes Python 2.7, and more.

Popular Stories

iPhone 17 Pro Dark Blue and Orange

When Is iPhone 17 Coming Out?

Thursday July 24, 2025 9:11 am PDT by
Apple's iPhone 17 series is expected to debut in September 2025. This release follows Apple's recent trend of introducing new iPhone models annually in the fall. To unveil the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max, Apple is expected to hold its annual iPhone announcement event during the week of September 8, 2025, with September 9 or 10 emerging as the most likely...
iPhone 17 Pro on Desk Centered 1

iPhone 17 Pro Launching in Two Months With These 16 New Features

Saturday July 26, 2025 5:50 am PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max should launch in late September, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models, as of July 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14...
iPhone 17 Pro on Desk Centered 1

Tipster: iPhone 17 Pro to Feature 8x Zoom, Pro Camera App, and More

Sunday July 27, 2025 7:35 am PDT by
Apple's upcoming iPhone 17 Pro models will have several new camera-related features, according to an anonymous tipster who contacted MacRumors today. The tipster claimed to be familiar with an iPhone 17 Pro commercial that is allegedly being produced by a film company that has publicly listed Apple as one of its clients. MacRumors has not independently confirmed any of the information shared ...
Apple Watch Ultra 2 Complications

Apple Watch Ultra 3: What to Expect

Thursday July 24, 2025 7:08 am PDT by
The long wait for an Apple Watch Ultra 3 is nearly over, and a handful of new features and changes have been rumored for the device. Below, we recap what to expect from the Apple Watch Ultra 3:Satellite connectivity for sending and receiving text messages when Wi-Fi and cellular coverage is unavailable 5G support, up from LTE on the Apple Watch Ultra 2 Likely a wide-angle OLED display that ...
Apple Partridge Creek

Apple Store in Michigan Permanently Closing Next Month

Saturday July 26, 2025 1:51 pm PDT by
Earlier this month, MacRumors was first to report that Apple was planning to permanently close its Partridge Creek store, just outside of Detroit, Michigan, and now the company has announced a closure date for the location. Apple Partridge Creek Apple Partridge Creek's final day of business will be Saturday, August 16, with the store set to close for good at 8 p.m. local time that day. All of ...
iOS 18

Apple Shares iOS 18.6 Release Notes

Thursday July 24, 2025 6:33 am PDT by
While the focus is now on iOS 26, there is still an iOS 18.6 update incoming. As noted by Aaron Zollo, Apple on Wednesday re-labeled iOS 18.6 Beta 4 as simply iOS 18.6, meaning that it is the Release Candidate version. This change effectively confirms that the update will be released to the public next week. Alongside the new label, Apple shared release notes for iOS 18.6, which is a...
iPhone 17 Colors

All 15 New iPhone 17 and iPhone 17 Pro Colors Leaked

Friday July 25, 2025 6:20 am PDT by
We may finally have a definitive list of all color options for the iPhone 17 series, ahead of the devices launching in September. MacRumors concept In a Macworld report this month, Filipe Espósito said he obtained an "internal document" that allegedly reveals all of the color options for the upcoming iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max models. The report...
iPhone 17 Pro on Desk Centered 1

iPhone 17 Pro Launching in Two Months With These 16 New Features

Tuesday July 22, 2025 5:00 pm PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max are less than two months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models, as of July 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14...

Top Rated Comments

dr_lha Avatar
46 months ago

I wonder how many people in that case will actually receive the information.
If you're not reading changelogs, you probably shouldn't be installing betas.
Score: 28 Votes (Like | Disagree)
antnythr Avatar
46 months ago

If you're not reading changelogs, you probably shouldn't be installing betas.
And if you are installing betas, your data should be backed up so when something like this inevitably happens, it’s not actually an issue.
Score: 19 Votes (Like | Disagree)
sdf Avatar
46 months ago

Wait, are you saying Apple only tested a Beta release in the simplest and most basic install config? I’m SHOCKED!!
Discovering bugs in a variety of real world conditions is why beta tests exist.
Score: 16 Votes (Like | Disagree)
contacos Avatar
46 months ago

If you're not reading changelogs, you probably shouldn't be installing betas.
Next you assume people read TnC of anything
Score: 11 Votes (Like | Disagree)
randyhudson Avatar
46 months ago
Wait, are you saying Apple only tested a Beta release in the simplest and most basic install config? I’m SHOCKED!!
Score: 7 Votes (Like | Disagree)
apparatchik Avatar
46 months ago
Not only shouldn't you install betas on critical / important devices but, just out of caution, you shouldn't jump head first to new major releases whatever the OS.

I was once left out of my bank's mobile app (which meant I couldn't withdraw money, pay for critical stuff, etc.) because I updated my phone right away to the new release and the app would crash. It took three weeks for the bank to fix it. On iOS you should wait at least six months, and on a Mac you use for a living, you better wait a full year and always stay a version behind if possible.

Beta testing should be left to either platform developers or people with the time and spare devices to actually test things. People shouldn't expect it to be seamless.
Score: 5 Votes (Like | Disagree)