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Re: "drive already mounted or busy" ... dmsetup routine



* Keith McKenzie <km3952@gmail.com> [120718 07:17]:
> Check that nothing else has been mounted over/on top of your mount
> point.

Nothing is mounted on that mount point. And this behaviour only
happens with one particular hard drive:

Connect problematic external hard drive into USB port and...

    # mount /dev/sdb1 /media
    mount: /dev/sdb1 already mounted or /media busy
    # umount /media
    umount: /media: not mounted

Well, nothing wants to happen there.
Ok, now insert a USB thumbdrive into that USB port...

    # mount /dev/sdc1 /media
    # umount /media
    # 

no problem mounting & unmounting the thumbdrive on that mount point.
But with that other hard drive, I have to first do the aforementioned
"dmsetup remove ..." routine, then it will mount & unmount no problem.
Until the next suspend/resume cycle, then it's "dmsetup remove ..."
all over again.

John

-- 
John Magolske
http://B79.net/contact


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