No User Available for Authorization Mac Error while recovery Fix is fixed

Hi, Please listen to audio carefully. There is no synchronization between audio and video. You have to listen it. SImple solution is what you have to do.
Step 1 - Go to recovery in mac.
Step 2 - Go to Partition
step 3- Make sure they are mounted. If mounted it will show option of unmounting. If not mounted they will show option for mounting.
Step 4 - No delete all partition . select APFS.
Step 5 - go back. and then try again. it will work
Step 6 - It will say mac activated
step 7- all done.
No User Available for Authorization
mac book installtion error.