Umount issue on upfrading

[Stephen Beaver]

ARM based (EP9301) system with Cirrus logic "crater" distro. Kernel 2.6.17 &
BB 1.1.3

On upgrading from an earlier system (2.4.21 & an early BB), I find that I
can no longer make umount work.

This is what I see:

# mkdir /mnt/temp
# mount -t jffs2 /dev/mtdblock3 /mnt/temp
# mount
# <SNIP>
# /dev/mtdblock3 on /mnt/temp type jffs2 (rw)

So far so good. An "ls" on /mnt/temp displays the files that are on that
device. But ...


# umount /dev/mtdblock3
# umount: Couldn't  umount /dev/mtdblock3: Inappropriate ioctl for device

I have been unable to find a cause for this error.

Thanks for any advice.

Steve