I have a Macbook Pro 13 in. 2020 on Big sur 11.5 and am trying to get bootcamp again. I previously had it up until a few days ago when I tried to increase my bootcamp storage by creating a new partition. It was 60 gb partition formatted as MS-DOS (FAT). Easy, simple right? when restarted my computer, the bootcamp hard drive was no longer accessible on the startup disk. After restarting my computer and deleting the new partition, bootcamp no longer showed up at all. At this point, I removed bootcamp entirely.
I redownloaded the Windows ISO and used the bca to go through the process. Seemed the work just fine until i recevied this error message: "Windows cannot locate the disk and partition specified in the unattended answer file's setting. Make sure the setting references a valid partition and restart the installation"
After a going through multiple different reasons I narrowed the issue down. When bca creates the BC and OSXRESERVED partition to set up windows 10, bca would put the ISO and everything it needs to run bc on the OSXRESERVED partition. I reset the PRAM and SMC mutliple times and reran BCA as well. It's been a constant cycle over the past 3 days and I would appreciate any help.
Below is my diskutil list with the bootcamp and extra partition after my last attempt.
meganreynolds@Megans-MacBook-Pro ~ % diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.3 GB disk0 1: EFI 314.6 MB disk0s1 2: Apple_APFS Container disk1 255.0 GB disk0s2 3: Microsoft Basic Data OSXRESERVED 10.0 GB disk0s3 4: Microsoft Basic Data BOOTCAMP 229.4 GB disk0s4 5: EFI 83.9 MB disk0s5 (free space) 5.5 GB - /dev/disk1 (synthesized): #: TYPE NAME SIZE IDENTIFIER 0: APFS Container Scheme - +255.0 GB disk1 Physical Store disk0s2 1: APFS Volume Macintosh HD 15.3 GB disk1s1 2: APFS Snapshot com.apple.os.update-... 15.3 GB disk1s1s1 3: APFS Volume Macintosh HD - Data 149.6 GB disk1s2 4: APFS Volume Preboot 285.9 MB disk1s3 5: APFS Volume Recovery 626.1 MB disk1s4 6: APFS Volume VM 2.1 GB disk1s5
meganreynolds@Megans-MacBook-Pro ~ %