Add Linux Arm Support

[easton57]

Hey there,

This uses journalctl to check for EL2 and virtualization support. Unfortunately arm doesn't have virtualization features listed in /proc/cpuinfo.

[gitneko]

You should wrap the journalctl check into its own try block, because on non-ARM devices this will completely fail the virtualization check (due to a non-zero exit code of grep it will go to the catch block).