MacOS Big Sur by Apple was officially released in November 2020. Since its release, several updates (versions 11.1 and 11.2) have been released for this system. However, each update seems to come with its own problem. The 11.3 public beta is now available for download, but user reports show that their MacBooks are experiencing issues after the system update. There is a message that the update hangs indefinitely. In addition, the message "No bootable disk" will appear in the recovery interface.
Although Apple has officially stated that 35,5 GB of disk space is required for the update, system updates can still be performed when there is not enough space on the computer. However, if you do this, you will lose all your data. Not just the data: it will damage the hard drive and the computer will no longer start.
The crash occurred in beta versions of macOS Big Sur 11.2 and 11.3. If you restore the system when there is not enough space, the computer will become unresponsive, resulting in permanent data loss. After data loss, users will need a second Mac to recover data. However, if the user has FileVault file encryption enabled, data recovery will be very difficult.
The size of the macOS Big Sur installation package is about 13 GB, but for security purposes, users should ensure that there is still 35,5 GB of free disk space after downloading the installation package. At the time of publication, Apple has yet to respond to this bug.
Since last December, there have been several reports of Apple macOS Big Sur connectivity issues. According to the latest report, Apple macOS Big Sur versions 11.1 and 11.2 have problems connecting an external monitor. Available reports suggest that the problem exists in two formats.
The first problem is that the USB-C port does not recognize the external display, making it unusable and unable to connect. This problem affects DisplayPort and HDMI displays, connecting directly, through hubs and adapters. Some users have reported experiencing this issue after upgrading from 11.1 to 11.2.
The second problem is with the image. Some external monitors cannot handle 4K 60Hz but are locked at 30Hz. In some cases, 4K displays output images at 1080p. One of the first reports about this problem appeared in the Apple community on December 14. However, recent Twitter messages that surfaced yesterday show that the issue still exists.
According to unofficial statistics, most users who have encountered this problem are using a 16-inch MacBook Pro. However, there are other Mac users who have the same problem. Now there is no reliable, big and tested fix or solution. We'll just have to wait for the next macOS Big Sur 11.3 open beta to see if the issue can be resolved.
