This is definitely a bug, though not one to put on the partitioner. The installer needs to check the total size of packages that are going to be installed before it tries to start downloading and unpacking them, and this will (unfortunately, in terms of complexity) need to be done on a per-mount-point basis. To be really stringent about it, it should make sure there's enough free space left after installation that the system doesn't immediately fall flat on its face. For example, if /var is on the root partition, and it's so close to full at install time that there's no free space a few days later, and services can't start (can't write PID file), the installer should be able to warn about that.
Given that all the above would be quite invasive (and I don't know if individual installed-file size data is even available presently), the conservative answer is to have debian-installer respond correctly when it (or whatever underlying processes are doing the work) encounters ENOSPC: report that there wasn't enough space on whichever partition is full to proceed with installation. This is disappointing from a UI design standpoint, but it at least moves the burden of diagnosing an installation failure from the user to the software, where it belongs. Phil -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org