Error during install. What does it mean? How do I resolve? Need help.

Multiple failed attempts to run the patcher. Below is the text dispayed in the error window. Attempting to update from Big Sur to Sonoma or Sequoia. Both end with the following error.

Failed to create macOS installer
Output: Started erase on disk2
Unmounting disk
Creating the partition map
Waiting for partitions to activate
Formatting disk2s2 as Mac OS Extended with name OCLP-Installer
Initialized /dev/rdisk2s2 as a 116 GB case-insensitive HFS Plus volume
Mounting disk
Finished erase on disk2
Copying essential files...

Error: Erasing disk: 0%... 10%... 20%... 30%... 100%
Failed to write .IAPhysicalMedia cookie to disk. Error Domain=NSCocoaErrorDomain Code=513 "You don’t have permission to save the file “.IAPhysicalMedia” in the folder “Install macOS Sonoma”." UserInfo={NSFilePath=/Volumes/Install macOS Sonoma/.IAPhysicalMedia, NSUserStringVariant=Folder, NSUnderlyingError=0x7fe41ffc31e0 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}}
The bless of the installer disk failed.