how to restore proxmox mounts after a system reinstallation

[Saif_ali]

hi, I had to reinstall proxmox on a failed node. I have used the below commands to re-join the cluster (same hostname and ip)

ssh-keygen -t rsa
pvecm add 10.5.50.192 --force

everything looks OK but the local mounts created previously by proxmox GUI are not working. they appear in the GUI (cluster level only ) but they are not actually mounted on the node. I can't find the related .mount files.
is this normal?
should I backup these files using an external tool in the future?
is there a way to force proxmox to recreate them?

 

[wolfgang]

Hi,

All data on the Installation disk are overwritten.
So If you mean the "local-lvm" and "local" data are missing?
If yes the data are gone on these storages on the local new installed node.

should I backup these files using an external tool in the future?

You should have always an offside copy(backup) of important data.

is there a way to force proxmox to recreate them?

You have to give a bit more information. Recreate what type of storage?

 

[Saif_ali]

You have to give a bit more information. Recreate what type of storage?

I just want to automatically re-create the systemd mounts created while adding directory storage after reinstalling proxmox. For example,
while creating a directory mount for /dev/sdb (adding a directory storage in the node level), the below files will be created
/etc/systemd/system/mnt-pve-vpnode_sdb.mount --> (the actual systemd mount unit)
/etc/systemd/system/multi-user.target.wants/mnt-pve-vpnode_sdb.mount --->(a link to /etc/systemd/system/mnt-pve-vpnode_sdb.mount)

after reinstalling proxmox, these files will be missing. is there anyway around manual backup/restore?

 

[wolfgang]

There is no tool to regenerate this systemd mount files.
But here is a systemd.mount file that you can use to restore your mounts.

# /etc/systemd/system/mnt-pve-test.mount
[Install]
WantedBy=multi-user.target

[Mount]
Options=defaults
Type=ext4
What=/dev/disk/by-uuid/1e144825-59d9-41a5-81ce-a062b8469cdd
Where=/mnt/pve/test

[Unit]
Description=Mount storage 'test' under /mnt/pve

 

[Saif_ali]

There is no tool to regenerate this systemd mount files.
But here is a systemd.mount file that you can use to restore your mounts.

thanks, I am thinking of write a script to copy them to /etc/pve/nodes , theoretically, I will have them ready after the reinstallation

 

[wolfgang]

Be careful with such things because of the limitation of the pmxcfs.
The pmxcfs(Proxmox Cluster Filesystem) is only capable of saving 32 MB of data
and a file is not allowed to be bigger than 512KB.