Unable to Download Big Sur 11.2.1

When trying to update to Big Sur 11.2.1 i receive the following message: "An error occurred while downloading the selected updates. Please check your internet connection and try again." There is no problem with my internet connection. I purchased this MacBookPro about a week ago, so I'm sure there isn't a space issue. Please help.
I had the same issue on my MacBook Air (early 2015). I deleted a few larger applications like iMovie and bingo!

It seemed to need more than three times the stated update size. For guidance I've 13GB free on the disk now.
Hope this helps
I kept getting an error message that my internet connection failed when trying to download the update. I have a MacBook Air 2019 and this is what worked for me after trial and error:
  1. Cleared cache and cookies in browser

  2. Restarted in safe mode

  3. While in safe mode, I deleted old files and apps that I don't use and this seemed to move the download along

  4. I kept my Mac charging while it was downloading and installing

It took about 20-25 minutes to complete.




try to edit the rospkg/os_detect.py file, the file path will be in the error output
edit the line 363

from :
Code Block python
def _osx_codename(major, minor):
if major != 10 or minor not in _osx_codename_map:
raise OsNotDetected("unrecognized version: %s.%s" % (major, minor))
return _osx_codename_map[minor]


to
Code Block python
def _osx_codename(major, minor):
return 'big sur'


I have the same issue with my retina 12 (2017) tried connecting to a different network because at first i think it was my wifi not working but after trying several times (safe mode too) and seeing this forum I think there might be something else going on.

would love some help thanks.
This happened to me before when Big Sur first released. The update works after uninstalling any app that uses software that doesn’t belong to Apple (Google Chrome, Microsoft Word, Etc).
I am also facing same problem while downloading 11.2.3.
Is happening to a lot of people it looks like apple wants to get rid off old equipments and once again they want you to buy whats new
Same problem here. Seems like we're all getting left on read
I am seeing the same for 11.2.3 update and I am on MBP 2019 just upgraded to 11.2.2.
Download never completes saying the error in internet connectivity.
Same here MacMini M1 cannot update macOS 11.2.2 to 11.2.3.
I've tried clean caches by Onyx.app and after reboot, install update again and it works successfully.
Same here, MacBook Air M1.
Same problem is happening for me on a MacBook Pro 2019 when I try to upgrade from 11.2.1 to 11.2.3.
Unable to Download Big Sur 11.2.1
 
 
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