maybe you misunderstood...
I had previously installed ProxMox, it broke, I installed a new one ProxMox to a new memory card...
On the old one ProxMox there were folders with virtual disk files (dev/sda dev/sda1)
how do i add the old folder to the new one ProxMox... without losing the information that is stored on it
Make sure to use option below to avoid surprises:
--is_mountpoint <string> (default = no)
Assume the given path is an externally managed mountpoint and consider the storage offline if it is not mounted. Using a boolean (yes/no) value serves as a shortcut to using the target path in this field.