Hi everyone,
This is similar to many other threads, but with no answwer that I have found yet. If there is one, then I apologise in advance for repeating the question.
My problem is, when I have mounted a cd under /mnt/scd1 as root, then I am unable to umount it. By issuing the command umount /mnt/scd1, I get the error message " umount failed device is busy"
If I go lsof /mnt/scd1 I get this:- mount 14621 root cwd DIR 11,1 6144 296960 /mnt/scd1
I then issue the command kill -9 14621, which I understand should kill that process, as the -9 is meant to be not ignored, but to no avail.
Can anyone help, I am becoming more follically challenged by the minute!.

TIA

If you are in the directory tree for the device it will not let you umount it. That may be what is going on. Look at all your terminals and make sure that you are not in a dirctory of the mounted device.

Hello,
No, I am not in the directory tree for the cdrom. I had puposely made sure to cd away from it completely. However, hera is something else that I found out that looks like it is connected to whatever is casuing this. When I reboot, because I can find no other way to umount. Then I get a list of errors telling me that /usr /root / cannot be umounted because the device is busy. Also, this means on the reboot that fsck runs, but doesn't find any errors with the file system. Any more ideas?

TIA

In Mandrake, I would just type "fuser -mk /mnt/scd1" as root and it would do the trick. Which distro are you using?

Thanks, I will try that next time it happens. Am currently using MDK9.2, and this has been a problem for some time which I have just lived with. It normally happens after issuing a urpmi command for update or install of software from a CD. I suppose I should have said that as a normal user, it never happens. At least I have learnt another linux (or is it a specific Mandrake one) with command with fuser.

Thanks

deleted, upon doing some research, I noticed that my original comments contained information that was incorrect.