
Some users have reported their update taking upwards of ten hours. When Mac fails, it usually can't boot or start up properly. I have a habit of running Win 10 updates and then also checking MS Office, system drivers, etc.
Earlier this week, various macOS sysadmins began reporting that some Apple devices were failing to upgrade to Big Sur version 11. If it still doesn't work you could try a reset of it as well, although you may lose any bookmarks or password history you have inside of edge this way. And with the startup drive nearly 100 percent full, the installer would get stuck in an endless boot loop attempting to finish the installation procedure. On the secondaruy Mac, download the macOS Big Sur installer. After you’re finally inside the Terminal app, type the following command and press Enter (Return) to effectively clear the Software Update Catalog on macOS: sudo softwareupdate -clear-catalog. Boot your Mac into safe mode and install the macOS again. If you're trying to update to macOS Big Sur, I recommend this comprehensive how-to guide-The detailed manual to clean install macOS Big Sur. While the issue with Big Sur was live on 12 November Apple had the following text on the site indicating that there was a problem:
Once you’re inside the Utilities screen, double-click on the Terminal app and insert your account password if asked for it.Big system updates (sometimes) take a whole lot of time! 4.
Alternatively, navigate to your Applications folder, locate and select the Install macOS.to bypass the update and go back to regular log-in: turn the computer off by holding down the power button press and hold the option button BEFORE turning back on the computer keep pressing option and turn the computer on once the computer is on, you should be at the screen that says 2 options for Mac select Mac HD log into your wifi.An error occurred preparing the software update big sur.