I setup an iscsi connection to a newly minted Debian server. Everything work perfectly except when I reboot the server I get the 'Error of Concern' as shown below. The server hangs trying to umount the iscsi device when it is rebooted. Is there something I missed, that must be done because its the /home directory? Has anyone experienced this and found a solution? I understand that it is notifying me that that directory is busy. But that doesn't really help, especially on reboot. Code: # cat /etc/debian_version 7.2 # uname -a Linux hoist 3.2.0-4-amd64 #1 SMP Debian 3.2.51-1 x86_64 GNU/Linux # cat /etc/fstab /dev/sdb1 /home ext4 defaults,auto,_netdev 0 0 # df -h /dev/sdb1 345G 195M 327G 1% /home <<<<<< Error of concern >>>>>>>>> Unmounting iscsi-backed filesystems: Unmounting all devices marked _netdevumount: /home: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) Could not unmount /home ... (warning). failed! invoke-rc.d: initscript umountiscsi.sh, action "stop" failed. Couldn't unmount all iSCSI devices. Cannot stop iSCSI service ... failed!