> I recently built a level 0 array out of 3 4.3G ultra DMA 66 ide
> drives.
>
> I have a Promise Ultra66 IDE controler in addition to the Ultra66
> ide on the main board. Each drive is a master and the only drive on
> the cable. I am running 2.3.99-pre5 and have moved /usr to the
> array. This had been working fine for several weeks, but I have
> recently begun having problems unmounting /usr upon shutdown. I get
> errors that the file system is busy and the shutdown never
> completes. I end up givng the machine a hard reset or just power
> down.
>
> Does anyone know what may cause this poblem or have any suggestion I
> could try to track down the cause?
sure, if you
>$ cd /usr/anything
and leave it sitting there, the device will not umount, but will just
say busy. The message is simply telling you that the device is
"really" open, not just mounted.
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