Currently have HA running on 1GB Pi4, but RAM is running at 70-80% most of the time and can bog down. Have another Pi4, this one with 4GB+ (and also potentially the later 1.8MHz CPU vs original 1.5MHz), and I’d like to use this moving forward.
Is it as simple as swapping the SD card, or do I have to backup my setup, and then reinstall?
Do both. First make sure you have a backup downloaded locally to your PC (just in case). Then, power down HA gracefully and insert the old card into the new Pi.
The card swap should work seamlessly, but you need to keep an eye out on the IP address. Might be safer to set your current IP to fixed in HA before you do the swap & backup, just in case your new Pi gets assigned a new IP address due to DHCP.
I’ll take a look at how my router assigns IPs - Thank you, that’s a good call - but I don’t think I’ll have any difficulties because mine is a quiet network in terms of DHCP
Heh, famous last words. IPs are handed out by MAC address, which will definitely change once you plug in a new Pi. That’s why I suggested setting a fixed IP in HA (tip: use the current DHCP IP as the fixed IP)
Then again, if you can easily identify which address belongs to the new Pi then try to access newip:8123, then you shouldn’t have any issues.
There’s only one other Pi on my network besides the HA unit, so the new one is very easily identifiable.
Thank you for your speedy responses before I take action and need to come back for help!
Let me know how if goes. If the swap works, please take the time to mark my post with the solution tag so that others with the same question will find the answer immediately. Thanks
Seamless! Fixed the IPs (both v4 and v6) so I just had to delete the old machine from HA and it’s back up and running in no time. Easy Peasy RasPi Squeezy!