On Mon, 25 Jul 2005, Lars Nordlund wrote:
> What happened if you inserted another floppy instead of the one you
> just removed? Did it destroy that floppy with the other floppy's dirty
> buffers?

No. Floppies have/had names attached somewhere which were checked, and 
asked for "Insert volume 'Music:' back into any drive" or so. You could 
also refer to drives (say) Music: and Data: and if you have them both in 
two drives everything was fine, and if one was not inserted when needed, 
it was asked for. Very nifty... :-)


> I have been thinking about something like this for NetBSD. If it is
> possible to store a checksum of the MBR(?) (or some other kind of
> identity of the mounted media) so the OS can safely flush dirty buffers
> later. If a media disappears the kernel would just write "reinsert media
> previously mounted at /memorystick now!" on all ttys.

uuidgen(1) etc.?
I think it's not used anywhere right now, probably when "wedges"
go and replace disklabels, but I have no idea what the plan is there.


  - Hubert