umount device busy

[skiddoo]

Hello,

Maybe a simple question. I mounted an external disk (esata) with [cmd=]mount /dev/ada3 /mnt[/cmd]. After some tests (create files and folders), I like to unmount this device via [cmd=]umount /mnt[/cmd]. But this terminates with an error

device is busy

With the parameter -f it is possible to unmount the device. But that should not be the preferred solution.

I already checked runing processes with fstat /dev/ada3. But I can't find any running proccess.

I formatted the device with [cmd=]newfs- L usbdisk -O2 -U /dev/ada3[/cmd]. Did I make a mistake?

Thanks for any response.

Regards
skiddoo

 

[fonz]

I already checked runing processes with fstat /dev/ada3. But I can't find any running proccess.

I did the following quick check (assuming /dev/foo is the device containing /):

[cmd=%]cd /[/cmd]
[cmd=%]fstat /dev/foo[/cmd]
USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W NAME

Most likely you have a shell open somewhere, with the current working directory still somewhere on the mounted filesystem. Can you check all the open shells/terminals and see what their pwd is?

 

[skiddoo]

Ahhh, OK. The pwd of my terminal was the mount point of the device. After I left it, umount was possible. Thanks a lot.