Improve PI Server Installation kit: disk space requirements should include the minimal PI Backup
When calculating the disk space requirements on a recent upgrade the drive was expected to have only 138 MB installed. But the install failed due to not enough disk space on the drive because the minimal backup needed a certain amount of disk space. This need should be included in the Required Disk Space panel when upgrading.
It would be even more useful if this backup could be redirected to another drive. The "minimal" backup that is performed includes Log files. With audit logs included, this can require a very large amount of space.