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I have an usb external disk and I spin-down it through "hd-idle", a utility I found here: http://hd-idle.sourceforge.net.

I thought that when Ubuntu shutdown, it unmount all partitions, whether these belong to internal or external hard drives.

I noticed, instead, that if an internal drive is in standby, this is awakened at the time of the system shutdown (probably just to unmount any partitions mounted on that disk even if it does so when there are no partitions mounted, and in fact in my opinion, it would also be preferable if in this case it remain off) but the same doesn't occur for my external hard-drive.

This let me think that "external" partitions are not correctly unmounted. Anyone knows why this happens?

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closed as too localized by Bruno Pereira Feb 17 '12 at 22:50

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

    
Hello, this question has no information and activity for a very long time. I am closing it for now. If by any reason you think this question is still viable or useful in anyways or that there is still a good chance it will be answered please flag it to a moderator or add a comment with the reasons why you want it open. Regards –  Bruno Pereira Feb 17 '12 at 22:50

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