# uname --help
Usage: uname [OPTION]...
Print certain system information. With no OPTION, same as -s.
-a, --all print all information, in the following order:
-s, --kernel-name print the kernel name
-n, --nodename print the network node hostname
-r, --kernel-release print the kernel release
-v, --kernel-version print the kernel version
-m, --machine print the machine hardware name
-p, --processor print the processor type
-i, --hardware-platform print the hardware platform
-o, --operating-system print the operating system
--help display this help and exit
--version output version information and exit
Report bugs to <bug-coreutils@gnu.org>.
see that uname doesn't have anything about hostid!!!