During running "mkisofs" to create ISO image, following problem has been encountered occasionally.Remark: "/mnt/livecd" is the partition on which the ISO image to be created.Code:
mkisofs: Operation not permitted. cannot open '/mnt/livecd/proc/kcore'
Then the command exited. I have to stop iptables running then the problem gone.
Please advise what is the cause of this problem and how to fix it other than stopping iptables.