[CentOS] @reboot only some lines of a script are working (yum install not)

Tue Jan 15 14:48:45 UTC 2019
Anthony K <akcentos at anroet.com>

On 14/1/19 5:26 pm, Ralf Prengel wrote:
> Hallo,
> yes it is up.
> Result of 10 pings is fine as first line in the script.
> Any other ideas?
> Ralf

Maybe there's something in the install process that needs a tty - maybe 
try running it in a screen session???