Cant' update to Big Sur - update not found the requested version of macos is not available

I had same issue on my MacBook Pro (13-inch, 2017). It turns out that I had to install other updates, which were not shown in System Preferences. I've listed all available updates from terminal:

sudo softwareupdate -l

This command found two updates: "macOS Catalina Security Update" and "Safari14.0.3CatalinaAuto". After installing them with following command:

sudo softwareupdate -i -a

and restarting the system I was able to upgrade to Big Sur from System Preferences.

Did you check the link previously posted? The download whas been blocked by Apple to avoid the problems apparent with 2013/14 laptops. So, just wait until Apple has figured out the problem and fixes it.

https://mrmacintosh.com/big-sur-11-0-1-20b50-released-to-block-install-for-2013-14-13-mbpros/

I’ve MacBook Pro late 2013 with identical issues. I even reinstalled clean Catalina 10.15.7 because I thought maybe my macos was busted since I never had clean install after the purchase. Didn’t help. Spoke with Apple support for about 1.5h on the phone and at the end they told me there is an issue with 2013 and 2014 and they put a block currently and are working on it. That was a week ago. I’m checking daily. No change. I’m willing to try clean install of Big Sur from usb but can’t find a direct download link with the latest Big Sur.

interesting, if I enable beta updates, the laptop starts updating to Big Sur beta but I stopped it because my goal is not to run experimental stuff. Just sharing info.

Apple is very specific on which MBP 2013 can upgrade to Big Sur. Try looking Here to verify.

Apple has blocked Big Sur installation on 2013-14 13-Inch MacBook Pro's.

https://mrmacintosh.com/big-sur-11-0-1-20b50-released-to-block-install-for-2013-14-13-mbpros/

Not looking good in 11.1 Beta either.

Same here, MBP 13" mid-2014. I saw the update for Big Sur in preferences system the week it was released, but hold it off due to multiple reports of that range of MBP being bricked afterward. Now I no longer see the update and, likewise, going through the App Store does not work (I get the same error message).

I too believe Apple pulled the update from the possibly affected MacBooks.

It appears Apple has temporarily blocked 2013/2014 MBPs from Big Sur until some issues are resolved.

Run the command: sudo softwareupdate --ignore "macOS Big Sur"

Input your passoword to assume admin privileges

Then run the command: sudo softwareupdate --reset-ignored

I ran these commands and was able to get my update to appear again.

Same here, I have a 13' MBP mid 2014 and apple support told me to do it on macOS Recovery ( Basically you restart the computer and after the boot chime you do: cmd + option + r ) and I got to Big Sur recovery but when I tried to install gave me an error that said: macOS needs to install some data to install (something like that) and I couldn't install. Maybe try it like that?? If not try with apple support, give them a call, because they told me to call to get upper level support (Haven't done it) because they say its something they can't fix through chat

Attempt this from Terminal "  softwareupdate -l " without the quotation marks. It may? just kick the update system to find Big Sur.

I suggest you restart your computer. Even with my 2020 MacBook Pro I had to do that to get it to work.

You can check if you have a non-standard update source:

defaults read /Library/Preferences/com.apple.SoftwareUpdate CatalogURL

If CatalogURL does not exist, that's OK and the standard situation to pull from the non-beta updates. To force a beta source, you write this key (as root if needed with sudo)

sudo /usr/sbin/softwareupdate --set-catalog https://swscan.apple.com/content/catalog

same problem here

MacBook Pro (Retina, 13-inch, Mid 2014)

It now works. Just download it.