External Version bump for nixos new version string "nixos-20.09Qnixos-21.05Qnixos-unstable"

roles/netbootxyz/defaults/main.yml

@@ -83,7 +83,7 @@ ipxe_ca_filename: ca-ipxe-org.crt
 ipxe_ca_url: http://ca.ipxe.org/ca.crt
 ipxe_repo: https://github.com/ipxe/ipxe
 ipxe_source_dir: /usr/src/ipxe
-kernel_params: 'initrd=initrd.magic ${cmdline}'
+kernel_params: initrd=initrd.magic ${cmdline}
 live_endpoint: https://github.com/netbootxyz
 memdisk_location: http://${boot_domain}/memdisk
 netbootxyz_conf_dir: /etc/netbootxyz