Adding files to vios repository (CLI)
Connect to the vios lpar as the padmin user using ssh.
ssh -l padmin ipaddress
$ mvopt -name Name -file filename.iso -ro
After which it will be visible in the vios repository.
$ lsrep
Size(mb) Free(mb) Parent Pool Parent Size Parent Free
20398 5489 rootvg 1351680 481280
Name File Size Optical Access
AIX722 3976 vtopt2 ro
LCD4563725 7003 vtopt0 ro
aix721 3221 vtopt1 ro
aixrpms 709 vtopt3 ro
$