bug using rclone with s3 in aws appstream appstream_machine_role #8896
Description
The associated forum post URL from https://forum.rclone.org
not my post but https://forum.rclone.org/t/rclone-fails-to-run-credential-process-on-aws-appstream-instance/49295 discusses the issue
What is the problem you are having with rclone?
I am using rclone with aws appstream and it is failing to work out of the box
By default a .aws/config file of
[profile appstream_machine_role]
credential_process = "C:\Program Files\Amazon\Photon\PhotonRoleCredentialProvider\PhotonRoleCredentialProvider.exe" --role=Machine
is used. changing that to avoid the " and spaces
[profile appstream_machine_role]
credential_process = C:\Progra~1\Amazon\Photon\PhotonRoleCredentialProvider\PhotonRoleCredentialProvider.exe --role=Machine
fixes this issue but it would be good if it could work out of the box
my rclone.conf is
[s3]
type = s3
provider = AWS
region = eu-west-2
storage_class = STANDARD
bucket_acl = private
env_auth = true
profile = appstream_machine_role
What is your rclone version (output from rclone version)
rclone v1.71.1
- os/version: Microsoft Windows Server 2022 Datacenter 21H2 21H2 (64 bit)
- os/kernel: 10.0.20348.4171 (x86_64)
- os/type: windows
- os/arch: amd64
- go/version: go1.25.1
- go/linking: static
- go/tags: cmount
installed via choco
Which OS you are using and how many bits (e.g. Windows 7, 64 bit)
windows server 2022 base 64 bit
Which cloud storage system are you using? (e.g. Google Drive)
s3
The command you were trying to run (e.g. rclone copy /tmp remote:tmp)
rclone ls s3:bucketname
A log from the command with the -vv flag (e.g. output from rclone -vv copy /tmp remote:tmp)
2025/10/13 20:14:14 DEBUG : rclone: Version "v1.71.1" starting with parameters ["C:\\ProgramData\\chocolatey\\lib\\rclone.portable\\tools\\rclone-v1.71.1-windows-amd64\\rclone.exe" "ls" "s3:appstream-resources-669661143284" "--config" "rclone.conf" "-v" "-v"]
2025/10/13 20:14:14 DEBUG : Creating backend with remote "s3:bucketname"
2025/10/13 20:14:14 DEBUG : Using config file from "C:\\Users\\DefaultProfileUser\\rclone.conf"
'\"C:\Program Files\Amazon\Photon\PhotonRoleCredentialProvider\PhotonRoleCredentialProvider.exe\"' is not recognized as an internal or external command,
operable program or batch file.
2025/10/13 20:14:14 DEBUG : 2 go routines active
2025/10/13 20:14:14 NOTICE: Failed to ls: operation error S3: ListObjectsV2, get identity: get credentials: failed to refresh cached credentials, process provider error: error in credential_process: exit status 1
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