I'm using a Linux box which is serving several Windows 95 PC's as file and volume sharing with Samba 1.9.17p4. One of the disks that are mounted on the linux box is a Fujitsu 2513 MO-drive. To allow users to be able to change disks in the drive without logging to the server, I've used the root preexec, postexec and the dead time options as below: [global] ... dead time = 3 [MO] path=/mo guest ok=no read only=no root preexec=mount -t vfat /dev/sda /mo root postexec= umount /mo ... This seems to work, and every PC sharing the drive is able to read and write to it; but, when trying to copy several files which are quite big (about 2-5Mb each) Windows starts to do copying but after a while it stops with the message "Windows cannot copy file <fff>: volume is no more available" or something like that. After this error, by running smbstatus on the linux box, I found that the MO drive is not mounted but the file being copied just before the error message is still open (and locked) by Samba. I have tried to add "sync always = yes" to the [MO] section but without success. I've also try to increase the dead time option, but the problem doesn't change. I don't want to remove the dead time because after that it would impossible to swap cartridges without logging to the linux box - I don't like this very much... I tried to copy the same files to the linux hard disk and then move them manually to the MO drive - this works fine, so I think Linux and the MO drive itself are working well. Any ideas? Thanks, marchino