summer-abacus opened a new issue, #12080:
URL: https://github.com/apache/cloudstack/issues/12080
### problem
When trying to take a Volume Snapshot from an Instance Snapshot a error
```Request failed. (431)
Cannot perform this operation, unsupported VM snapshot type.``` is thrown.
Detailed message from the management-server.log
```2025-11-14 08:05:07,308 DEBUG [c.c.a.ApiServlet]
(qtp1438988851-5668:[ctx-e91e0099]) (logid:aef6a687) ===START===
2a02:cd8:aee:40:ac69:f1d1:ec68:e5e6 -- POST
command=createSnapshotFromVMSnapshot
response=json
name=filesystem
volumeid=0fc1970c-cb19-4951-9302-5d39eb081228
vmsnapshotid=7e9e742f-e91d-47b0-b520-c4e03d16e9d7
sessionkey=iV5uiXxxAz-L4VPr7q5U0lNKgNU
2025-11-14 08:05:07,308 DEBUG [c.c.a.ApiServlet]
(qtp1438988851-5668:[ctx-e91e0099]) (logid:aef6a687) Two factor authentication
is already verified for the user 2, so skipping
2025-11-14 08:05:07,311 DEBUG [c.c.a.ApiServer]
(qtp1438988851-5668:[ctx-e91e0099, ctx-2765e599]) (logid:aef6a687) CIDRs from
which account 'Account
[{"accountName":"admin","id":2,"uuid":"76d6398e-8fc0-11f0-8bb8-02eebb877a77"}]'
is allowed to perform API calls: 0.0.0.0/0,::/0
2025-11-14 08:05:07,312 INFO [o.a.c.a.DynamicRoleBasedAPIAccessChecker]
(qtp1438988851-5668:[ctx-e91e0099, ctx-2765e599]) (logid:aef6a687) Account for
user id 76d67b18-8fc0-11f0-8bb8-02eebb877a77 is Root Admin or Domain Admin, all
APIs are allowed.
2025-11-14 08:05:07,312 DEBUG [o.a.c.a.StaticRoleBasedAPIAccessChecker]
(qtp1438988851-5668:[ctx-e91e0099, ctx-2765e599]) (logid:aef6a687) RoleService
is enabled. We will use it instead of StaticRoleBasedAPIAccessChecker.
2025-11-14 08:05:07,312 DEBUG [o.a.c.r.ApiRateLimitServiceImpl]
(qtp1438988851-5668:[ctx-e91e0099, ctx-2765e599]) (logid:aef6a687) API rate
limiting is disabled. We will not use ApiRateLimitService.
2025-11-14 08:05:07,323 DEBUG [o.a.c.e.o.VolumeOrchestrator]
(qtp1438988851-5668:[ctx-e91e0099, ctx-2765e599]) (logid:aef6a687) Found [0]
snapshots [[]] that have checkpoints for volume with id [42].
2025-11-14 08:05:07,325 INFO [c.c.a.ApiServer]
(qtp1438988851-5668:[ctx-e91e0099, ctx-2765e599]) (logid:aef6a687) Cannot
perform this operation, unsupported VM snapshot type.
2025-11-14 08:05:07,325 DEBUG [c.c.a.ApiServlet]
(qtp1438988851-5668:[ctx-e91e0099, ctx-2765e599]) (logid:aef6a687) ===END===
2a02:cd8:aee:40:ac69:f1d1:ec68:e5e6 -- POST
```
<img width="441" height="160" alt="Image"
src="https://github.com/user-attachments/assets/9f33a76c-9d6d-4f52-a46c-feb72542c3bb";
/>
Creating only a Volume Snapshot from a stopped VM is possible.
### versions
Cloudstack: 4.22.00
KVM: QEMU emulator version 8.2.2 (Debian 1:8.2.2+ds-0ubuntu1.10)
HostOS: Ubuntu 24.04.3 LTS (6.8.0-87-generic)
### The steps to reproduce the bug
1. Take a Instance Snapshot
2. Change to Instance Snapshots
3. Try to "Create Snapshot from Instance Snapshot"
4. Error message ```Request failed. (431)
Cannot perform this operation, unsupported VM snapshot type.``` pops up
### What to do about it?
_No response_
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