Andrew Schulman wrote:
>>I'm unable to unmount an ext2 partition, umount pretending that
>>the device is busy. However fuser does not see anything accessing
>>the partition.
>
>
> Try lsof <device file or mount point> .
>
Finally I found out the cause of the problem : it is due to AFS.
I'm running OpenAFS 1.3.65. Of course, I stop afs before trying
to unmount my partition but it seems that there is still an interaction
between the partition, the kernel or something else. This interaction is
undetected by fuser, lsof.
Instead of stopping AFS, I tried not to start it at boot time and as a
result I was finally able to unmount cleanly my partition.

> Andrew Schulman wrote:
> >>I'm unable to unmount an ext2 partition, umount pretending that
> >>the device is busy. However fuser does not see anything accessing
> >>the partition.
> >
> >
> > Try lsof <device file or mount point> .
> >
> Finally I found out the cause of the problem : it is due to AFS.
> I'm running OpenAFS 1.3.65. Of course, I stop afs before trying
> to unmount my partition but it seems that there is still an interaction
> between the partition, the kernel or something else. This interaction is
> undetected by fuser, lsof.
> Instead of stopping AFS, I tried not to start it at boot time and as a
> result I was finally able to unmount cleanly my partition.

Good. I wonder whose fault that is-- AFS, or lsof/fuser.

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