hi there, it seems that i have found the sequence to reliably reproduce this problem.
# mount /adata # cd /adata # vnconfig svnd0 install46.iso # mount /dev/svnd0c /mnt # umount /mnt # umount /adata umount: /adata: Device busy # vnconfig -u svnd0 # umount /adata why wasn't fstat showing this information? even doing "fstat -f /adata/install46.iso" returned nothing. is there another way one could have diagnosed this, except directly running vnconfig -l? # vnconfig -l vnd0: covering install46.iso on sd0a, inode 467852 vnd1: not in use vnd2: not in use vnd3: not in use (and while here, i think the output of vnconfig -l would be more useful if it showed the covered file's absolute path.) -f -- good girls go to heaven. but bad girls go everywhere!