使用ROOT运行sh提示权限不够。

hacked

bash: ./install.sh: 权限不够，已经chmod 777 install.sh 也是不行，在网上找到说可能是noexec 的问题。。但小弟刚刚入门linux不熟识如何设置。希望大虾指点..
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[root@localhost scripts]# mount
/dev/sda7 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda6 on /boot type ext3 (rw)
/dev/sda9 on /home type ext3 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
gvfs-fuse-daemon on /home/Anyi/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=Anyi)
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#
# /etc/fstab
# Created by anaconda on Wed Jan 6 02:45:14 2010
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=24cd7f12-4cf5-4900-8ca9-cccd5594d2fb / ext3 defaults 1 2
UUID=626c078a-9cb4-4198-8362-3b9aab3799f0 /boot ext3 defaults 1 2
UUID=111049d0-7a32-4876-87c9-8a88e005aad5 /home ext3 defaults 1 2
UUID=0cb0022b-d55b-4eb1-877f-fc3179b664da swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0

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vi /etc/mtab

/dev/sda7 / ext3 rw 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
devpts /dev/pts devpts rw,gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs rw 0 0
/dev/sda6 /boot ext3 rw 0 0
/dev/sda9 /home ext3 rw 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0
gvfs-fuse-daemon /home/Anyi/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev,user=Anyi 0 0
~