I use hotplugd to attach my usbstick. I works well, but I miss a detach script which I couldn't find as a example in the manual so I wonder if it's necessary. I've tried once to just disconnect the stick without umounting the FS manually, and it worked.
messages shows: Aug 24 16:24:54 venus /bsd: umass1: SanDisk Corporation Cruzer Micro, rev 2.00/0.10, addr 2 Aug 24 16:24:54 venus /bsd: umass1: using SCSI over Bulk-Only Aug 24 16:24:54 venus /bsd: scsibus2 at umass1: 2 targets Aug 24 16:24:54 venus /bsd: sd1 at scsibus2 targ 1 lun 0: <SanDisk, Cruzer Micro, 0.1> SCSI2 0/direct removable Aug 24 16:24:55 venus /bsd: sd1: 488MB, 488 cyl, 64 head, 32 sec, 512 bytes/sec, 1000944 sec total Aug 24 16:36:57 venus /bsd: umass1: at uhub3 port 1 (addr 2) disconnected Aug 24 16:36:57 venus /bsd: sd1 detached Aug 24 16:36:57 venus /bsd: scsibus2 detached Aug 24 16:36:57 venus /bsd: umass1 detached Can it cause any damage on a FS if I remove a usb device that is mounted by hotplugd? /bkw

