Gravitational.io/site:6.1.13 install hook failed, failed to execute phase "/runtime"

Hi,
I’m really thankful for gravity and look forward to using it! I’m going through the tutorial for mattermost and doing the installation on a 5GB RAM/15GB disk Ubuntu VM on a Mac Host.
The ./gravity install step falls with the following error:

[ERROR]: Job has reached the specified backoff limit, gravitational.io/site:6.1.13 install hook failed, failed to execute phase "/runtime" (Job has reached the specified backoff limit)

I ran a preflight check and this is the error I got:

multipass@on-prem-host:~/gravity$ sudo ./run_preflight_checks
Wed Dec  4 20:56:26 UTC	No deployed cluster detected, running install preflight checks
Wed Dec  4 20:56:26 UTC	Running checks against node profile "node"
[ERROR]: The following checks failed, provide --autofix flag to let gravity to autofix them:
	[×] kernel module "overlay" not loaded
	[×] kernel module "ebtables" not loaded
	[×] kernel module "ebtable_filter" not loaded
	[×] kernel module "iptable_filter" not loaded
	[×] kernel module "iptable_nat" not loaded
	[×] kernel module "br_netfilter" not loaded
	[×] kernel module "overlay" not loaded
	[×] ipv4 forwarding is off, see https://www.gravitational.com/docs/faq/#ipv4-forwarding
	[×] open /proc/sys/net/bridge/bridge-nf-call-iptables: no such file or directory (br_netfilter module is either not loaded, or sysctl net.bridge.bridge-nf-call-iptables is not set, see https://www.gravitational.com/docs/faq/#bridge-driver)

Here is the link to the excellent tgz crash report.

I’d appreciate any help you can provide :). Thank you.

I increased my VM to 40G drive, 6 GB RAM, 3 cores and it worked. The timeout could be caused due to low values for hard disk and cores. Ram usage was around 1.5G.
Thanks

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