Big Sur Beta 5 Constant Kernel Panics
Do you have Norton installed?
I have noticed that Norton 360 does not even start. The uninstall process did not complete, so I can't verify if it is still running, but the installer does not run as well - it crashes.
boot recovery (Command-R)and completely erase the drive
disconnect any time machine backups
restart and do internet recovery (Option-Command-R)
install the default OS for your hardware (I ended up with El Capitan, sheesh)
work through installing OS updates (for me, Catalina, and then Big Sur) until you are back to Big Sur Beta (it installed 4, luckily)
assuming you have a backup (which of course you do, right?), use migration assistant to restore your account(s)
Turn off auto update and DON'T update to Beta 5.
Do you guys have Norton running?
The installer does not even starts...
Get to login screen and log in.
Progress bar get's part of the way and then the Mac book reboots.
When trying to log in with safe mode, the reboot happens even faster.
I have issues with Norton Wifi Privacy ever since i installed Big Sur on my machine, it doesn’t start and it freezes. Even Norton Internet Security is also giving trouble. I have uninstalled both but no luck. Looking for a solution/update so that i am able to restore my macbook without loosing data (without erasing the drive).
---MBP 16" 2019
"Safe Mode"
Open terminal> run "brew doctor"
Your output should provide you with enough information.
for me the problems were:
1)broken symlinks with python library , solved by removing symlinks then run "brew link python"
2) run "brew cleanup"
3)Xcode 11.6 , removed and installed v12
4) run "softwareupdate --all --install --force"
After this my system seems stable somewhat on beta 5.
Still dealing with the issue that CLT is not supported in this version.
Reboot into "Recovery mode"
Open terminal, execute command "csrctl disable" to disable system integrity protection
Reboot into "Safe mode"
Open terminal, execute command "systemextensionsctl list", find the symantec extension, then execute command "systemextensionsctl uninstall <teamID> <extensionName>"
Reboot into "Normal mode". Everything is OK!
When booting, try holding Option/Alt key so you could choose your partition/disk to be booted. Try choosing your normal Mac disk.Get to login screen and log in.
Progress bar get's part of the way and then the Mac book reboots.
When trying to log in with safe mode, the reboot happens even faster.
My installation was not smooth (I guess it failed to install the DP 5). After failed installation, when booting, it was choosing the macOS Installer disk instead (as a default one). Therefore, I could not boot the computer up. My progress bar reached 50% every time, and computer restarted once again to enter the credentials (I have FireVault enabled).
Yes, It is the Symantec which is culprit and has been causing system un-stability issue.
I followed the steps as below:
1. Reboot into Recovery mode
2. Open the Terminal, execute command, csrutil disable
3. This will disable system integrity protection
4. Reboot into Safe Mode,
5. Open the Terminal, execute command, systemextensionsctl list
6. This command will produce the information regarding system extensions.
7. After this, In my case I executed command, systemextensionsctl uninstall 9PTGMPNXZ2 com.symantec.mes.systemextension
8. This will take a few seconds to uninstall
9. After this you would need to uninstall all the Norton Apps from your system
10. Finally Download RemoveSymantecMacFiles.zip
11. Unzip and run RemoveSymantecMacFiles.command file
12. Restart into Normal mode
After this I have noticed that the issue has been resolved completely. I am able to use my MBP without any difficulty. Please make sure that you do not install Symantec apps again because it may cause system instability issues again.
I'm really regretting ever installing Norton now. It's been nothing but problems. I just love it when you uninstall a program extremely thoroughly and it still leaves remnants that cause problems.
(I'm on the public beta by the way, not developer beta)