I was sent from this topic PocketBeagle - Linux on ARM - eewiki. Basically I followed the instructions to boot up an iMX based evaluation board. I use
https://rcn-ee.com/rootfs/eewiki/minfs/ubuntu-16.04.3-minimal-armhf-2017-12-09.tar.xz for rootfs. The board booted up fine and I logged in ok (ubuntu/tempwd, logged in from the serial port), failed to ping 220.127.116.11.
I can ping the board from other computer in the network but the board itself cannot ping because of permission issue. I know I am root, as I can do dd command, etc… I can call “ping --help” but cannot do “ping 18.104.22.168”.
I followed someone note “setcap cap_net_raw+p /bin/ping” but met with message “unable to set CAP_SETFCAP effective capability: Operation not permitted”.
I cannot find any other hints to solve this problem. Can you please help ?
By the way, when I do “sudo ping 22.214.171.124”, I was met with message “sudo /usr/bin/sudo must be owned by uid 0 and have the setuid bit set”