改变分区大小时出错

kezi1937

想新建一个空白分区，从home（／dev／hda9）目录分出一些空间，用的是Partion Editor(Gparted)，先卸载了home（sudo umount -l /dev/hda9），然后改变大小，但是保存应用时却出现了错误，无法完成操作，
GParted 0.3.8

Libparted 1.8.8

Move /dev/hda9 to the right and shrink it from 66.00 GiB to 46.47 GiB 00:00:02 ( ERROR )

calibrate /dev/hda9 00:00:01 ( SUCCESS )

path: /dev/hda9
start: 21655683
end: 160071659
size: 138415977 (66.00 GiB)
calculate new size and position of /dev/hda9 00:00:01 ( SUCCESS )

requested start: 62621433
requested end: 160071659
requested size: 97450227 (46.47 GiB)
new start: 62621433
new end: 160071659
new size: 97450227 (46.47 GiB)
check filesystem on /dev/hda9 for errors and (if possible) fix them 00:00:00 ( ERROR )

e2fsck -f -y -v /dev/hda9

Filesystem mounted or opened exclusively by another program?
e2fsck 1.41.3 (12-Oct-2008)
e2fsck: 设备或资源忙 while trying to open /dev/hda9

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请问是怎么回事？