fs-agent warning

[Marcel@lionux]

Hi,

When backups are made to PBS I have the following warnings:

INFO: attaching TPM drive to QEMU for backup
WARN: unable to check guest fs freeze status - Agent error: Command guest-fsfreeze-status has been disabled: the command is not allowed
INFO: issuing guest-agent 'fs-freeze' command
ERROR: unable to freeze guest fs - Command guest-fsfreeze-freeze has been disabled: the command is not allowed
INFO: starting backup via QMP command

Not sure if it is harmless or I can solve the problem so I don't receive the warnings.

 

[Marcel@lionux]

After some reading and experimenting I think the issue is the vm but guest-agent is working alright.

 

[Impact]

Can you share qm config VMIDHERE?

 

[Marcel@lionux]

Yes I checked the config but I can't find anything strange.

root@pve-3:~# qm config 102
agent: 1,fstrim_cloned_disks=1
balloon: 0
bios: ovmf
boot: order=scsi0;net0
cores: 8
cpu: host
efidisk0: local-lvm:vm-102-disk-0,efitype=4m,size=4M
memory: 32000
meta: creation-qemu=9.2.0,ctime=1760275699
name: nimbus-02
net0: virtio=BC:24:11:D3:FC:49,bridge=vmbr0,firewall=1,rate=7,tag=3
numa: 0
ostype: l26
scsi0: local-lvm:vm-102-disk-1,discard=on,iothread=1,size=440G,ssd=1
scsihw: virtio-scsi-single
smbios1: uuid=12eb8aad-e175-49ec-8120-045fb2f13908
sockets: 1
tags: flux;nodes;prod
tpmstate0: local-lvm:vm-102-disk-2,size=4M,version=v2.0
vcpus: 8
vmgenid: 4022337d-7664-4633-aaa7-f2bf9b34c111

 

[Impact]

Yeah seems like the message comes directly from the agent. Can you you check this inside the VM?

# Show command/args and potential config file location
systemctl status qemu-guest-agent.service
systemctl cat qemu-guest-agent.service

# Check for potential default config files
find /etc/qemu/ -ls
tail -n +1 /etc/default/qemu*

# Maybe something was logged
journalctl -r

I'm guessing block-rpcs is set somewhere but since I don't know where exactly I'll have you check everything I can think of. I guess we could also grep for that.