[SOLVED] Installing and Configuring Proxmox Backup Server on a Single Disk

[Matthew47]

Hi,

For learning purposes --> I am trying to install Proxmox Backup Server (PBS), and configure it to use a partition of the boot drive to store the backups.

I was able to install it, but it's not clear how to configure it to use the boot drive as the data store. The following screenshot contains the disk configuration as it was installed:


My intent was to use nvme0n1p3 as the data store for my backups, but I was unable to select it due to a "no unused disk" error.

My understanding is that I need to format that partition as an ext4, zfs, or zfs file system for it to store backups; however, the EFI and BIOS boot partitions are slightly over 1GB combined (implying that critical information is stored on partition 3), so I am concerned that formatting partition 1 would break the server.

What am I missing here that would allow me to use this drive to store backups?


Thanks!

 

[Impact]

The easiest way is to create a directory on the root volume and use that as path for your datastore.
For example doing this is all you need



To elaborate. That first partition uses LVM, a volume manager, and there will be a few volumes.

# lvs
  LV   VG  Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  root pbs -wi-ao---- <479.00g                                              
  swap pbs -wi-ao----    4.00g

# lsblk -o+FSTYPE
NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS FSTYPE
sda            8:0    0  500G  0 disk        
├─sda1         8:1    0 1007K  0 part        
├─sda2         8:2    0    1G  0 part             vfat
└─sda3         8:3    0  499G  0 part             LVM2_member
  ├─pbs-swap 252:0    0    4G  0 lvm  [SWAP]      swap
  └─pbs-root 252:1    0  479G  0 lvm  /           ext4

# df -hT /
Filesystem           Type  Size  Used Avail Use% Mounted on
/dev/mapper/pbs-root ext4  471G  2.2G  445G   1% /

The root volume is formatted as ext4 and mounted at / and is where you can create the directory as explained above.

 

[Matthew47]

What's the reason for creating the data store in /var?

 

[Impact]

No reason, just an example. You can consult the Filesystem Hierarchy Standard to find a more appropriate path.

 

[Matthew47]

Thanks! My PBS is working!