With FileVault enabled, you need to connect your Mac to another Mac through Target Disk Mode in order to recover your files. However, recovering data without backup can be very difficult. If you have a backup of your data, you can simply erase the entire drive and reinstall macOS. At the same time, it does not affect OTA updates from one Big Sur installation to another (like updating from macOS 11.1 to macOS 11.2). Macintosh was able to confirm that this bug affects the macOS Big Sur 11.2 installer and even the macOS Big Sur 11.3 beta installer. The update process seems to work fine, but users receive the following message towards the end of the installation:Īn error occurred while preparing for the software update.įrom this point on, the Mac will no longer start.
NOT ENOUGH STORAGE FOR MAC BIG SUR INSTALL
Unfortunately, even if your Mac doesn’t have 35.5GB of storage available, macOS will try to install the Big Sur update, and that’s when users risk losing all of their data.
![not enough storage for mac big sur not enough storage for mac big sur](https://www.macxdvd.com/mobile/article-image/macos-big-sur-forbidden-error.jpg)
When the system starts the update process, the Mac becomes unresponsive and the data may be permanently corrupted.Īpple says upgrading to macOS Big Sur for the first time requires at least 35.5GB of available storage – and that doesn’t include macOS Big Sur’s 13GB installer.
![not enough storage for mac big sur not enough storage for mac big sur](https://www.imore.com/sites/imore.com/files/styles/large/public/field/image/2016/02/Other-storage-Mac-hero.jpeg)
Macintosh discovered that the macOS Big Sur installer does not check if the Mac’s internal storage has enough free space.
![not enough storage for mac big sur not enough storage for mac big sur](https://i.redd.it/tww5v5dd55161.png)
Macintosh, Big Sur still has a serious issue which can lead to data loss when users try to upgrade Mac to the latest version of OS without enough space available.Īfter noticing several user reports on the web, Mr. MacOS Big Sur was officially released for all users in November of last year and since then Apple has released updates with bug fixes and general improvements.