mount & umount read-only floppy: unmount failed: Input/output error ??

From: Rob Lahaye (lahaye_at_snu.ac.kr)
Date: 06/30/03

  • Next message: Dan: "Question about freebsd.org" 
    Date: Mon, 30 Jun 2003 18:09:46 +0900
To: freebsd-questions@freebsd.org

    Hi,

    I created the installation floppy from "kern.flp". Removed it from the
    drive, to make it read-only.
    I then put it back into the drive and do, as root:

    # mount -t ufs /dev/fd0 /mnt
    # umount /dev/fd0
    umount: unmount of /mnt failed: Input/output error
    #

    It's still mounted! I have to take the floppy out of the drive, make
    it read/write, put it back in the drive and do the umount. Then it's OK.

    The following is also fine:

    # mount -t ufs -o rdonly /dev/fd0 /mnt
    # umount /dev/fd0

    Is this normal, or what?
    Thanks,
    Rob.

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