I tried to use the linux-alar-fki script with kernel parameter in an ubuntu 18.04 VM and I am getting the following message (this was tested on a freshly created VM from the Portal):
Script returned with error:
[Error 02/09/2022 18:00:43] Your OS can not be determined. The OS distros supported are
[Error 02/09/2022 18:00:43] CentOS/Redhat 6.8 - 8.2
[Error 02/09/2022 18:00:43] Ubuntu 16.4 LTS and Ubuntu 18.4 LTS
[Error 02/09/2022 18:00:43] Suse 12 and 15
[Error 02/09/2022 18:00:43] Debain 9 and 10
[Error 02/09/2022 18:00:43] ALAR will stop!
[Error 02/09/2022 18:00:43] If your OS is in the above list please report this issue at https://github.com/azure/repair-script-library/issues
[Error 02/09/2022 18:00:43]