Also seeing this flash failed, uninitialized disk error.
Etcher: balenaEtcher-Portable-1.5.120.exe
Image: 2021-05-07-raspios-buster-armhf-full.img
Results:
{
"image": {
"size": 8602517504,
"name": "2021-05-07-raspios-buster-armhf-full.img",
"hasMBR": true,
"partitions": [
{
"offset": 4194304,
"size": 268435456,
"type": 12,
"index": 1
},
{
"offset": 272629760,
"size": 8329887744,
"type": 131,
"index": 2
}
],
"extension": "img",
"path": "C:\\Users\\R\\Downloads\\2021-05-07-raspios-buster-armhf-full.img"
},
"drives": [
{
"size": 500107862016,
"isVirtual": false,
"enumerator": "SCSI",
"logicalBlockSize": 512,
"raw": "\\\\.\\PhysicalDrive0",
"error": null,
"isReadOnly": false,
"displayName": "G:\\",
"blockSize": 512,
"isSCSI": true,
"isRemovable": false,
"device": "\\\\.\\PhysicalDrive0",
"busVersion": "2.0",
"isSystem": true,
"busType": "SATA",
"isCard": false,
"isUSB": false,
"devicePath": null,
"mountpoints": [
{
"path": "G:\\"
}
],
"description": "HFS500G32TND-3112A",
"isUAS": false,
"partitionTableType": "gpt"
}
],
"driveCount": 1,
"uuid": "f965fb4d-6524-47d9-af43-a6a426214469",
"flashInstanceUuid": "f965fb4d-6524-47d9-af43-a6a426214469",
"error": {
"name": "Error",
"message": "Unmount failed",
"stack": "Error: Unmount failed"
},
"sample": 0.1,
"applicationSessionUuid": "87c5174b-56d3-4632-919b-e4e2d88829e7",
"flashingWorkflowUuid": "2d78175b-328e-44e5-8600-e5173cce1943"
}
Hope this helps.
EDIT: I worked around this by using Raspberry Pi imager to burn to a USB stick, booting the Pi from that, and then using the built in tool in Raspbian to clone the USB stick over to the SSD.