error snapshot already exists

[Vcelak]

I have a problem with create snapshot:

1. verification of some snapshot 'qm listsnapshot'

# qm listsnapshot 402
cuuent no-parent You are here!

2. check snapshot in file qcow2
# qemu-img snapshot -l /data_SOSC/images/402/vm-402-disk-1.qcow2
(nothing)

3. command for create snapshot ends with error
# qm snapshot 402 KLON
VM 402 qmp command 'snapshot-drive' failed - snapshot 'KLON' already exists

My question, how delete snapshot 'KLON'? Thank you.

 

[dcsapak]

can you post your vm config? (qm config ID)

 

[Vcelak]

# qm config 402
agent: 1
balloon: 32768
bootdisk: scsi0
cores: 4
ide0: local:iso/openSUSE-Leap-15.0-DVD-x86_64.iso,media=cdrom
memory: 65536
name: sosc-HSS
net0: virtio=32:60:A2:0E1:ED,bridge=vmbr0
numa: 0
ostype: l26
scsi0: D_SOSC:402/vm-402-disk-1.qcow2,size=150G
scsi1: D_SOSC:1000/disk-sosc-conf.qcow2,size=100M
scsihw: virtio-scsi-pci
smbios1: uuid=23d61bcd-ef5e-44c3-8737-2f35fc0f3057
sockets: 2

# qemu-img snapshot -l /data_SOSC/images/1000/disk-sosc-conf.qcow2
(nothing)

 

[dcsapak]

and the other disk? scsi0: D_SOSC:402/vm-402-disk-1.qcow2,size=150G

 

[Vcelak]

Yes,
root@sosc:~/repo/util# pvesm path D_SOSC:401/vm-401-disk-1.qcow2
/data_SOSC/images/401/vm-401-disk-1.qcow2
root@sosc:~/repo/util# qemu-img snapshot -l /data_SOSC/images/401/vm-401-disk-1.qcow2
root@sosc:~/repo/util# pvesm path D_SOSC:1000/disk-sosc-conf.qcow2
/data_SOSC/images/1000/disk-sosc-conf.qcow2
root@sosc:~/repo/util# qemu-img snapshot -l /data_SOSC/images/1000/disk-sosc-conf.qcow2

 

[Vcelak]

I am sorry

root@sosc:~/repo/util# pvesm path D_SOSC:402/vm-402-disk-1.qcow2
/data_SOSC/images/402/vm-402-disk-1.qcow2
root@sosc:~/repo/util# qemu-img snapshot -l /data_SOSC/images/402/vm-402-disk-1.qcow2
root@sosc:~/repo/util# (nothing)

 

[dcsapak]

can you post the complete config (/etc/pve/qemu-server/402.conf)?

 

[Vcelak]

root@sosc:~/repo/util# cat /etc/pve/qemu-server/402.conf
agent: 1
balloon: 32768
bootdisk: scsi0
cores: 4
ide0: local:iso/openSUSE-Leap-15.0-DVD-x86_64.iso,media=cdrom
memory: 65536
name: sosc-HSS
net0: virtio=32:60:A2:0E1:ED,bridge=vmbr0
numa: 0
ostype: l26
scsi0: D_SOSC:402/vm-402-disk-1.qcow2,size=150G
scsi1: D_SOSC:1000/disk-sosc-conf.qcow2,size=100M
scsihw: virtio-scsi-pci
smbios1: uuid=23d61bcd-ef5e-44c3-8737-2f35fc0f3057
sockets: 2

 

[dcsapak]

ok it seems there are snapshots on the disk image which are not (yet) readable by qemu-img
does the vm still run? if yes, shut it down and try the 'qemu-img' command again

 

[Vcelak]

Thank you, shutdown helped

# qm stop 402
# qemu-img snapshot -l /data_SOSC/images/402/vm-402-disk-1.qcow2
# qemu-img snapshot -l /data_SOSC/images/1000/disk-sosc-conf.qcow2
# qm snapshot 402 KLON
# qm listsnapshot 402
KLON no-parent no-description
current KLON You are here!
# qm delsnapshot 402 KLON
# qm listsnapshot 402
current no-parent You are here!
# qm start 402
# qm snapshot 402 KLON
# qm listsnapshot 402
KLON no-parent no-description
current KLON You are here!
# qemu-img snapshot -l /data_SOSC/images/402/vm-402-disk-1.qcow2
Snapshot list:
ID TAG VM SIZE DATE VM CLOCK
1 KLON 0 2018-08-23 06:29:24 00:00:44.263
# qemu-img snapshot -l /data_SOSC/images/1000/disk-sosc-conf.qcow2
Snapshot list:
ID TAG VM SIZE DATE VM CLOCK
1 KLON 0 2018-08-23 06:29:28 00:00:44.263
# qm delsnapshot 402 KLON
# qm listsnapshot 402
current no-parent You are here!