Update to 11.6 Big Sur fails

Two for two. Big Sur 11.4 to 11.5.2 from Apple Apps Store and then to 11.6 is allowed to download and install.

Really thought Apple was issuing a Full Installer 11.6 once it was released as an update.

This is a real zig and zag method.

Most, if not all, previous Big Sur updates - once in the Public - the Store would have the Full New Version.

At least it did for my units.

Always brought down the Full New Version to make a USB Installer - except for the 11.6.

Mine failed to download several times and even though it is set to update automatically. Found that it fails as soon as screen goes to sleep. Keep working on the computer and it keeps downloading fine.

In my case, it installed it (after extensive delays because the machine sleeps in the middle of an upgrade, ugh). Then, after restarting the machine, it acted as if it had NOT installed it and then I am trying to install it again.

Apple: the lack of feedback of what the process will be, what is needed to achieve the upgrade, how it's going, what it's doing, after so long and so many releases is truly an unfriendly and unprofessional experience. Why you always thing people don't want to know what you are doing and where you are actually in the process, is beyond me. Also, it is NOT in-line with Apple's own user experience guidelines. It took 6 hours to complete the "five minutes remaining" portion of this update, and it still didn't work. Guys, you MUST start dealing with your quality assurance issues instead of pretending like they don't exist.

This has been a problem with Apple for a long time and their answers are not answers. I have seen a Terminal su command that forces it down and once down, the commands to install it. Everything updates but the OS update which seems to fail for a few years now. Turning off all protection and no router problems, it downloads fast and then comes up with a dialog error that "Download Failed". Actually Apple has failed. Support is terrible now and is unprofessional and almost worthless at best. I've had this problem for quite a while now. The beta program had an update for the entire OS that downloaded fine. No such luck with a "production" version of this. Bluetooth is a big problem as well as it isn't even capable of showing the same dialog box correctly and the switches are either not functional when it supposed to discover 3rd party devices but looses them and it's 1 or 2 days worth of getting them connected.

Dear,

I found a fix for this and my Problem has solved..

Just Goto App Store and Find the BigSur then get it (It's around 12.5Gb)

Problem Solved but took more than 2 Hrs to Complete the Update.

Thank You

ChathuraLy

I was getting the same error, time and time again. I tried everything. I then noticed during the attempts to download and update, I was also getting a notice from my Kaspersky Internet Security program that it blocked an attempt to access my webcam. So I turned off the Kaspersky webcam blocking feature and the next attempt to download the update was successful. I cannot tell you why, but it worked.

I have Big Sur 11.5.2 on a brand new MBA M1 and update to 11.6.1 does not go through although it downloads for 1 hour or so and then fails to complete.

Plenty of disk space and like I said brand new mac.

I am NOT inclined going through all the procedures described in some of the posts - why should I???

Apple support???

Hi, I'm still on Big Sur 11.4 because I've been having failing updates for a while and haven't been able to resolve. I finally found this thread but I cannot work out how to 'update from Apple Apps Store' as an alternative?

How can I get hold of the 11.5.2 update?

Advice much appreciated.

I don’t think you can get 11.5.2. The latest version of Big Sur was 11.6.1, and that is what you’d get.

As for why the update fails: we have no knowledge of your system but the two most common reasons are 1) no enough free space on the drive and 2) crappy “cleaners” or “antivirus” installed.

I was referring to the earlier replies on this thread which suggest downloading from the App Store, which I see above P.Phillips explains gives the Full Installer.

I found the links on the Apple support pages which say they link to the relevant OS downloads App Store but the links do not open successfully for me (despite using Safari as instructed).

I have 50Gb space and no antivirus or mac cleaners installed.

Yes, that's the page I found and when I click on the Big Sur link (in Safari) I get a blank grey browser window and nothing downloads or opens.

As others described in this thread, when I open the system software update in preferences and click to update it progresses to the "Preparing to Install Big Sur" progress bar and gets stuck at 10 mins. I have restarted and tried to reinstall several times. I'm on an early 2015MBA and currently Big Sur 11.4 -- just trying to get it to the latest Big Sur update.

Do you have any antivirus on this mac?

Good work there :-))

Thanks Phillps --I will follow the steps laid out.