TRW
We were able to create a bootable microSD for Pi 5. Attempted to create another and received Validation failed for various reasons. Used a different system, uninstalled and reinstalled the Windows installer, used different micro-SD cards and USB adapters. Received various message similar to following:
Failed unzipping the image. Try re-downloading this image. Failed writing from image boot.zip.
The error logs had the following:
12:57 (, 0) Starting step 6 : Writing file
+12:57 (, 0) Using zip file "C:/Users/TRW/AppData/Local/Emteria/Emteria.OS Installer/rpi5-v14.10.0/boot.zip"
+12:57 (, 0) Failed writeRaw: 0
+12:57 (, 0) Tried to write 8388608 bytes
+12:57 (, 0) error in mz_zip_reader_extract_to_callback
+12:57 (, 0) Failed extracting zip file: write calledback failed
+12:57 (, 0) Failed unzipping file
+12:57 (, 0) Failed writing partition content for "boot_a"
+12:57 (, 0) Failed creating partitions
Another had Partition: "boot"
error in verify callback
Failed verifying zip