Expanding Veeam Hardened Repository

If you are using the older version of the VHR ISO, you should be able to go into the OS to do the expansion as normal.  See this forum post about it - https://forums.veeam.com/veeam-backup-replication-f2/manually-expanding-lvm-and-xfs-file-system-t97660.html

​@Madi.Cristil ​@safiya - please move this to the Discussion Board since this is a question.

Hi ​@Chris.Childerhose, thanks for your reply. I have an additional question. I'm trying to access the OS, but when I use the vhradmin user, I log into the repository administration console instead of the operating system. I don't know if you know the steps to log in. The virtual machine is created in Proxmox. Additionally, SSH is enabled, and I log in with the veeamsvc user, but it doesn't allow me to run commands like sudo.

You will need to run the Veeam Live ISO more than likely to get in to single user mode or edit the grub boot menu to allow single user mode.  Just search that in Google and it will tell you.