strange, root has permission denied

Sorry mailed a reply too soon
Just went edit fstab , and cant see the noexec flag to remove ??
contents of fstab:
/dev/disk/by-id/ata-Hitachi_HDS721050CLA362_JPB540HA111KXB-part2 / ext4 acl,user_xattr 1 1
/dev/sda3 /home ext4 user,acl,user_xattr 1 2
/dev/sda4 /multimedia ext4 user,acl,user_xattr 1 2
/dev/disk/by-id/ata-Hitachi_HDS721050CLA362_JPB540HA111KXB-part1 swap swap defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs noauto 0 0
debugfs /sys/kernel/debug debugfs noauto 0 0
usbfs /proc/bus/usb usbfs noauto 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0

I’ll change the name of this computer before the next reboot, to avoid any confusion.
I’ve looked through sysconfig to see if there is any security setting to change the mounting of /home, but can’t see any thing

but I did find it in mtab, so removed the flag.
now to reboot :frowning: ?

Richard