When installing the adlagent on flavors of linux the installer doesn't natively support, you will see validation errors.
When the adlagent installer is validating the installl it is referencing to the flavor of linux. Currently the adlagent supports Redhat, SUSE, Debian, Default.
To get more information on all the switches used to install adlagent:
./altiris_adlagent_<version>x86_64.bin --help
To install adlagent on a non-redhat distro:
./altiris_adlagent_<version>x86_64.bin --install-as=redhat
To install adlagent on non-debian distro
./altiris_adlagent_<version>x86_64.bin --install-as=debian