Is there a way to not overwrite Home Assistant log after restart

Hello
I’m using Hass.io with 88.1.
I have regular restart and some time my raspberry is KO and I have to unplugged it to restart it.
I do not succeed to have clue for the root cause as the log file is reset at each Home Assistant restart.
Do you have any idea to access previous logs or avoid them to be overwritten?

I thought about this the other day. Sounds like a good idea. Can you open up a post in the feature request section so users can vote?

Feature request done here. Please vote.