mount pve

taich

taich

Active Member
Aug 15, 2020
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I have a proxmox 8.2 server but its boot ssd has errors, so proxmox does not boot any more.
I took the defect ssd out of the server and connected it to another linux pc to copy important configuration data from it.

I managed to mount the broken ssd and copied the whole /etc/ directory.
Unfortunately in proxmox there is a subdir /etc/pve/qemu-server where config (like 100.conf ) of all vm's is stored.

mount /dev/mapper/pve-data /mnt/data does not work.
error wrong fs type, bad option missing codepage or helper program

How can I mount pve-data partition where vm config is stored?

Many Thanks
Thomas
 
taich said:
I have a proxmox 8.2 server but its boot ssd has errors, so proxmox does not boot any more.
I took the defect ssd out of the server and connected it to another linux pc to copy important configuration data from it.

I managed to mount the broken ssd and copied the whole /etc/ directory.
Unfortunately in proxmox there is a subdir /etc/pve/qemu-server where config (like 100.conf ) of all vm's is stored.
Click to expand...
The /etc/pve directory structure is a filesystem-view on a database: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_pmxcfs . You need the Proxmox services running to access it as files. People often run into this, so maybe there are know ways to work around it? I don't know any and I think people recreate the VM configuration from their own memory.
taich said:
mount /dev/mapper/pve-data /mnt/data does not work.
error wrong fs type, bad option missing codepage or helper program

How can I mount pve-data partition where vm config is stored?
Click to expand...
It depends on what storage type you used, but probably pve-data is a LVM or LVM-thin and not a filesystem that you can mount. It is not where the VM configurations are stored but it is possible the VM virtual disks are stored there. Maybe use a Linux LVM guide to find the logical volumes of the virtual disks?
 
I managed to create and mount the ZFS storage.
In proxmox web interface under pveserver I see zfs-data where a disk vm-100-disk-0 is located.

Now I created the 100.conf file and put it in /etc/pve/qemu-server

Code: 
agent: 1
boot: order=scsi0;net0
cores: 2
memory: 2048
name: test
net0: virtio=BC:24:11:5E:0B:06,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
scsi0: zfs-data:vm-100-disk-0.raw
scsihw: virtio-scsi-single
sockets: 1

When I start the vm nothing happens. After a while i get this message:

Code: 
qm start 100
timeout: no zvol device link for 'vm-100-disk-0.raw' found after 300 sec.

What about the .raw extension?
 
Last edited:
taich said:
Now I created the 100.conf file and put it in /etc/pve/qemu-server

Code: 
agent: 1
boot: order=scsi0;net0
cores: 2
memory: 2048
name: test
net0: virtio=BC:24:11:5E:0B:06,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
scsi0: zfs-data:vm-100-disk-0.raw
scsihw: virtio-scsi-single
sockets: 1

When I start the vm nothing happens. After a while i get this message:

Code: 
qm start 100
timeout: no zvol device link for 'vm-100-disk-0.raw' found after 300 sec.
Click to expand...
It's probably not a file and you should not put .raw at the end (in the configuration file).
 
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