Unable to delete a snapshot

[powersupport]

We have server with the id 112 and snapshot named "BeforeDiskUpgrade", when I try to delete the snapshot getting the error as "rbd error: rbd: error opening image vm-112-state-BeforeDiskUpgrade: (2) No such file or directory", I tried to check from the snapshot from pool but it doesn't exist

rbd ls -l pool-name
rbd: error opening vm-112-state-BeforeDiskUpgrade: (2) No such file or directory

vm-112-disk-0 5 TiB

can anyone advice

 

[Chris]

We have server with the id 112 and snapshot named "BeforeDiskUpgrade", when I try to delete the snapshot getting the error as "rbd error: rbd: error opening image vm-112-state-BeforeDiskUpgrade: (2) No such file or directory", I tried to check from the snapshot from pool but it doesn't exist

rbd ls -l pool-name
rbd: error opening vm-112-state-BeforeDiskUpgrade: (2) No such file or directory

vm-112-disk-0 5 TiB

can anyone advice

Hi,
did you manually remove the snapshot? You probably have a leftover snapshot config in the VMs config. Please post the output of cat /etc/pve/qemu-server/112.conf. If you verify that there is no snapshots present for any of the VMs disk, you might be able to remove the snapshot by editing the config file.

 

[powersupport]

Hi,
did you manually remove the snapshot? You probably have a leftover snapshot config in the VMs config. Please post the output of cat /etc/pve/qemu-server/112.conf. If you verify that there is no snapshots present for any of the VMs disk, you might be able to remove the snapshot by editing the config file.

Below is the config,

cat /etc/pve/qemu-server/112.conf
agent: 1
boot: order=sata0
ciuser: root
cores: 2
efidisk0: px-st:vm-112-disk-4,efitype=4m,pre-enrolled-keys=1,size=1M
ide0: px-st:vm-112-cloudinit,media=cdrom,size=4M
ide2: NFS:iso/CentOS-7-x86_64-Minimal-1810__2_.iso,media=cdrom,size=918M
ipconfig0: ip=IP/24,gw=gw
memory: 12288
name: disk3-new
net0: virtio=BC:24:11A:F0:FE,bridge=vmbr0
net1: virtio=BC:24:11:07:EA:BC,bridge=vmbr1,firewall=1,tag=501
numa: 1
ostype: l26
parent: before-password-reset
sata0: px-st:vm-112-disk-0,size=5T
scsihw: virtio-scsi-pci
smbios1: uuid=47331dc4-b36e-4189-9d6f-861690e6ebca
sockets: 3
unused0: px-st:vm-112-disk-1
unused1: px-st:vm-112-disk-3
unused2: px-st:vm-112-disk-2
vmgenid: c55ebef4-7f92-44f1-9bb3-9ef71227c0f6

[BeforeDiskUpgrade]
#Before Disk Upgrade 21/04/2024
agent: 1
boot: order=scsi0;ide2;net0
cipassword: $5$zfWUzJAH$5JRrTJpngvss2Rub2M827INK9qm5DH7iVyWIbJ7KvP7
ciuser: root
cores: 2
ide0: px-st:vm-112-cloudinit,media=cdrom,size=4M
ide2: cdrom,media=cdrom
ipconfig0: ip=ip/24,gw=gw
memory: 2048
name: test-disk3
net0: virtio=BC:24:11A:F0:FE,bridge=vmbr0,rate=12.5
net1: virtio=BC:24:11:07:EA:BC,bridge=vmbr1,firewall=1,tag=501
numa: 1
ostype: l26
runningcpu: kvm64,enforce,+kvm_pv_eoi,+kvm_pv_unhalt,+lahf_lm,+sep
runningmachine: pc-i440fx-8.1+pve0
scsi0: px-st:vm-112-disk-0,discard=on,size=5T
scsihw: virtio-scsi-pci
smbios1: uuid=47331dc4-b36e-4189-9d6f-861690e6ebca
snapstate: delete
snaptime: 1713670523
sockets: 1
vmgenid: 91ad868e-3411-4376-964b-f289c9390bba
vmstate: px-st:vm-112-state-BeforeDiskUpgrade

[before-password-reset]
agent: 1
boot: order=scsi1;scsi0
cipassword: $5$zfWUzJAH$5JRrTJpngvss2Rub2M827INK9qm5DH7iVyWIbJ7KvP7
ciuser: root
cores: 2
ide0: px-st:vm-112-cloudinit,media=cdrom,size=4M
ide2: NFS:iso/ubuntu-22.04-live-server-amd64.iso,media=cdrom,size=1432338K
ipconfig0: ip=ip/24,gw=gw
memory: 12288
name: disk3-new
net0: virtio=BC:24:11A:F0:FE,bridge=vmbr0
net1: virtio=BC:24:11:07:EA:BC,bridge=vmbr1,firewall=1,tag=501
numa: 1
ostype: l26
parent: disk3Issue
runningcpu: kvm64,enforce,+kvm_pv_eoi,+kvm_pv_unhalt,+lahf_lm,+sep
runningmachine: pc-i440fx-8.1+pve0
scsi0: px-st:vm-112-disk-0,discard=on,size=5T
scsi1: px-st:vm-112-disk-1,size=3T
scsihw: virtio-scsi-pci
smbios1: uuid=47331dc4-b36e-4189-9d6f-861690e6ebca
snaptime: 1726246676
sockets: 3
vmgenid: ed7d9953-c66a-4a0d-81e6-addb755dbb45
vmstate: px-st:vm-112-state-before-password-reset

[disk3Issue]
#This snapshot during the disk kernal issue
agent: 1
boot: order=ide2
cipassword: $5$zfWUzJAH$5JRrTJpngvss2Rub2M827INK9qm5DH7iVyWIbJ7KvP7
ciuser: root
cores: 2
ide0: px-st:vm-112-cloudinit,media=cdrom,size=4M
ide2: NFS:iso/CentOS-7-x86_64-Minimal-1810__2_.iso,media=cdrom,size=918M
ipconfig0: ip=ip/24,gw=gw
memory: 12288
name: disk3-new
net0: virtio=BC:24:11A:F0:FE,bridge=vmbr0
net1: virtio=BC:24:11:07:EA:BC,bridge=vmbr1,firewall=1,tag=501
numa: 1
ostype: l26
parent: BeforeDiskUpgrade
runningcpu: kvm64,enforce,+kvm_pv_eoi,+kvm_pv_unhalt,+lahf_lm,+sep
runningmachine: pc-i440fx-8.1+pve0
scsi0: px-st:vm-112-disk-0,discard=on,size=5T
scsihw: virtio-scsi-pci
smbios1: uuid=47331dc4-b36e-4189-9d6f-861690e6ebca
snaptime: 1726205984
sockets: 3
vmgenid: ed7d9953-c66a-4a0d-81e6-addb755dbb45
vmstate: px-st:vm-112-state-disk3Issue

Thank you

 

[Chris]

snapstate: delete

So it seems that the state is still considered to be deleting the snapshot. Can you also post the task log for the snapshot delete task, did that run into errors?

 

[powersupport]

So it seems that the state is still considered to be deleting the snapshot. Can you also post the task log for the snapshot delete task, did that run into errors?

It was some time ago, I think the snapshot deletion interrupted highway on the first time, and it is the issue, how can we fix it now

 

[Chris]

Backup your VM + config (just to be safe), and try removing the config section related to the missing snapshot. That leads to the snapshot not being expected to be present anymore.

Note: You leaked the cipassword hash for this VM and might want to rotate that. Even better would be to use ssh keys instead, as we also recommend in the docs.