ItHowTo.ro » umount http://www.ithowto.ro Blogging about IT Stuff by ESSERIO Wed, 30 Nov 2011 09:13:07 +0000 en hourly 1 HowTo: force umount a busy device in linux http://www.ithowto.ro/2009/04/howto-force-umount-a-busy-device-in-linux/ http://www.ithowto.ro/2009/04/howto-force-umount-a-busy-device-in-linux/#comments Tue, 07 Apr 2009 14:44:01 +0000 gkoo http://www.ithowto.ro/?p=90 Here’s how :

When you try to umount the regular way, if a device is busy you’ll get the following :

dev:/# umount /dev/sda1
umount2: Device or resource busy
umount: /boot: device is busy

This can be solver very easy by entering this :

dev:/# umount -l /dev/sda1

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